2000-10-05 11:27:02 +00:00
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// Character Traits for use by standard string and iostream -*- C++ -*-
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2021-01-04 10:26:59 +01:00
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// Copyright (C) 1997-2021 Free Software Foundation, Inc.
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2000-10-05 11:27:02 +00:00
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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2009-04-09 17:00:19 +02:00
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// Free Software Foundation; either version 3, or (at your option)
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2000-10-05 11:27:02 +00:00
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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2009-04-09 17:00:19 +02:00
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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2000-10-05 11:27:02 +00:00
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2009-04-09 17:00:19 +02:00
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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2000-10-05 11:27:02 +00:00
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2010-12-19 09:21:16 +00:00
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/** @file bits/char_traits.h
|
c_io_stdio.h: Correct grammar in comments.
2001-11-02 Phil Edwards <pme@gcc.gnu.org>
* config/io/c_io_stdio.h: Correct grammar in comments.
* docs/doxygen/Intro.3: Expand "top-level" man page.
* docs/doxygen/doxygroups.cc: New module definitions (comments).
* docs/doxygen/mainpage.doxy: Tweaks.
* docs/doxygen/run_doxygen: Update Doxygen version, massage man pages.
Add @file hooks so that headers are considered to be documented.
* include/bits/basic_ios.h, include/bits/basic_file.h,
include/bits/basic_string.h, include/bits/boost_concept_check.h,
include/bits/char_traits.h, include/bits/codecvt.h,
include/bits/concept_check.h, include/bits/cpp_type_traits.h,
include/bits/fpos.h, include/bits/gslice.h, include/bits/gslice_array.h,
include/bits/indirect_array.h, include/bits/ios_base.h,
include/bits/locale_facets.h, include/bits/localefwd.h,
include/bits/mask_array.h, include/bits/pthread_allocimpl.h,
include/bits/slice.h, include/bits/slice_array.h,
include/bits/std_algorithm.h, include/bits/std_bitset.h,
include/bits/std_complex.h, include/bits/std_deque.h,
include/bits/std_fstream.h, include/bits/std_functional.h,
include/bits/std_iomanip.h, include/bits/std_ios.h,
include/bits/std_iosfwd.h, include/bits/std_iostream.h,
include/bits/std_istream.h, include/bits/std_iterator.h,
include/bits/std_limits.h, include/bits/std_list.h,
include/bits/std_locale.h, include/bits/std_map.h,
include/bits/std_memory.h, include/bits/std_numeric.h,
include/bits/std_ostream.h, include/bits/std_queue.h,
include/bits/std_set.h, include/bits/std_sstream.h,
include/bits/std_stack.h, include/bits/std_streambuf.h,
include/bits/std_string.h, include/bits/std_utility.h,
include/bits/std_valarray.h, include/bits/std_vector.h,
include/bits/stl_algo.h, include/bits/stl_alloc.h,
include/bits/stl_bvector.h, include/bits/stl_construct.h,
include/bits/stl_deque.h, include/bits/stl_heap.h,
include/bits/stl_iterator.h, include/bits/stl_iterator_base_funcs.h,
include/bits/stl_iterator_base_types.h, include/bits/stl_list.h,
include/bits/stl_map.h, include/bits/stl_multimap.h,
include/bits/stl_multiset.h, include/bits/stl_numeric.h,
include/bits/stl_pair.h, include/bits/stl_pthread_alloc.h,
include/bits/stl_queue.h, include/bits/stl_raw_storage_iter.h,
include/bits/stl_relops.h, include/bits/stl_set.h,
include/bits/stl_stack.h, include/bits/stl_tempbuf.h,
include/bits/stl_threads.h, include/bits/stl_tree.h,
include/bits/stl_uninitialized.h, include/bits/stl_vector.h,
include/bits/stream_iterator.h, include/bits/streambuf_iterator.h,
include/bits/stringfwd.h, include/bits/type_traits.h,
include/bits/valarray_array.h, include/bits/valarray_meta.h:
Add hooks, tweak comments only.
* include/bits/stl_algobase.h (swap, min, iter_swap): Also
document these functions.
* include/bits/stl_function.h: Tweak link comments.
From-SVN: r46717
2001-11-02 17:38:11 +00:00
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* This is an internal header file, included by other library headers.
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2010-12-19 09:21:16 +00:00
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* Do not attempt to use it directly. @headername{string}
|
c_io_stdio.h: Correct grammar in comments.
2001-11-02 Phil Edwards <pme@gcc.gnu.org>
* config/io/c_io_stdio.h: Correct grammar in comments.
* docs/doxygen/Intro.3: Expand "top-level" man page.
* docs/doxygen/doxygroups.cc: New module definitions (comments).
* docs/doxygen/mainpage.doxy: Tweaks.
* docs/doxygen/run_doxygen: Update Doxygen version, massage man pages.
Add @file hooks so that headers are considered to be documented.
* include/bits/basic_ios.h, include/bits/basic_file.h,
include/bits/basic_string.h, include/bits/boost_concept_check.h,
include/bits/char_traits.h, include/bits/codecvt.h,
include/bits/concept_check.h, include/bits/cpp_type_traits.h,
include/bits/fpos.h, include/bits/gslice.h, include/bits/gslice_array.h,
include/bits/indirect_array.h, include/bits/ios_base.h,
include/bits/locale_facets.h, include/bits/localefwd.h,
include/bits/mask_array.h, include/bits/pthread_allocimpl.h,
include/bits/slice.h, include/bits/slice_array.h,
include/bits/std_algorithm.h, include/bits/std_bitset.h,
include/bits/std_complex.h, include/bits/std_deque.h,
include/bits/std_fstream.h, include/bits/std_functional.h,
include/bits/std_iomanip.h, include/bits/std_ios.h,
include/bits/std_iosfwd.h, include/bits/std_iostream.h,
include/bits/std_istream.h, include/bits/std_iterator.h,
include/bits/std_limits.h, include/bits/std_list.h,
include/bits/std_locale.h, include/bits/std_map.h,
include/bits/std_memory.h, include/bits/std_numeric.h,
include/bits/std_ostream.h, include/bits/std_queue.h,
include/bits/std_set.h, include/bits/std_sstream.h,
include/bits/std_stack.h, include/bits/std_streambuf.h,
include/bits/std_string.h, include/bits/std_utility.h,
include/bits/std_valarray.h, include/bits/std_vector.h,
include/bits/stl_algo.h, include/bits/stl_alloc.h,
include/bits/stl_bvector.h, include/bits/stl_construct.h,
include/bits/stl_deque.h, include/bits/stl_heap.h,
include/bits/stl_iterator.h, include/bits/stl_iterator_base_funcs.h,
include/bits/stl_iterator_base_types.h, include/bits/stl_list.h,
include/bits/stl_map.h, include/bits/stl_multimap.h,
include/bits/stl_multiset.h, include/bits/stl_numeric.h,
include/bits/stl_pair.h, include/bits/stl_pthread_alloc.h,
include/bits/stl_queue.h, include/bits/stl_raw_storage_iter.h,
include/bits/stl_relops.h, include/bits/stl_set.h,
include/bits/stl_stack.h, include/bits/stl_tempbuf.h,
include/bits/stl_threads.h, include/bits/stl_tree.h,
include/bits/stl_uninitialized.h, include/bits/stl_vector.h,
include/bits/stream_iterator.h, include/bits/streambuf_iterator.h,
include/bits/stringfwd.h, include/bits/type_traits.h,
include/bits/valarray_array.h, include/bits/valarray_meta.h:
Add hooks, tweak comments only.
* include/bits/stl_algobase.h (swap, min, iter_swap): Also
document these functions.
* include/bits/stl_function.h: Tweak link comments.
From-SVN: r46717
2001-11-02 17:38:11 +00:00
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*/
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2006-12-05 23:24:07 +00:00
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//
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// ISO C++ 14882: 21 Strings library
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//
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2003-07-05 04:05:45 +00:00
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#ifndef _CHAR_TRAITS_H
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#define _CHAR_TRAITS_H 1
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2000-10-05 11:27:02 +00:00
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2001-02-19 18:52:25 +00:00
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#pragma GCC system_header
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2007-11-15 19:05:17 +00:00
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#include <bits/stl_algobase.h> // std::copy, std::fill_n
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2007-03-03 10:29:14 +00:00
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#include <bits/postypes.h> // For streampos
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#include <cwchar> // For WEOF, wmemmove, wmemset, etc.
|
2020-04-17 16:24:49 +01:00
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#if __cplusplus > 201703L
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# include <compare>
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#endif
|
2000-10-05 11:27:02 +00:00
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Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
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#ifndef _GLIBCXX_ALWAYS_INLINE
|
Remove char16_t and char32_t dependency on <stdint.h>
The char16_t and char32_t types are automatically defined by the
compiler and do not depend on support in <stdint.h>. The char_traits
specializations depend on uint_leastNN_t but can be made to work anyway
by using the predefined macros, or as a last resort make_unsigned.
* include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<u16string>, hash<u32string>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
__UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
* include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>)
(codecvt_byname<char16_t, char, mbstate_t>)
(codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
* include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>)
(basic_string<char16_t>, basic_string<char32_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<__u16vstring>, hash<__u32vstring>): Likewise.
* include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
(__u32sso_string, __u32rc_string): Likewise.
* include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
(codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
* include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* src/c++11/codecvt.cc: Likewise.
* src/c++98/locale_init.cc: Likewise.
* src/c++98/localename.cc: Likewise.
From-SVN: r263002
2018-07-26 15:02:01 +01:00
|
|
|
# define _GLIBCXX_ALWAYS_INLINE inline __attribute__((__always_inline__))
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
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#endif
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|
PR libstdc++/36104 part four
2011-01-30 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/36104 part four
* include/bits/c++config (_GLIBCXX_STD): Remove.
(_GLIBCXX_STD_D, _GLIBCXX_PR): Now _GLIBCXX_STD_C.
(_GLIBCXX_P): Now _GLIBCXX_STD_A.
(_GLIBCXX_NAMESPACE_DEBUG, _GLIBCXX_NAMESPACE_PARALLEL,
_GLIBCXX_NAMESPACE_PROFILE, _GLIBCXX_NAMESPACE_VERSION): Remove.
(_GLIBCXX_INLINE_DEBUG, _GLIBCXX_INLINE_PARALLEL,
_GLIBCXX_INLINE_PROFILE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE(X)): Remove.
(_GLIBCXX_END_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y)): Remove.
(_GLIBCXX_END_NESTED_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE_ALGO): Add.
(_GLIBCXX_END_NAMESPACE_ALGO): Add.
(_GLIBCXX_BEGIN_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_END_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_BEGIN_NAMESPACE_VERSION): Add.
(_GLIBCXX_END_NAMESPACE_VERSION): Add.
(_GLIBCXX_BEGIN_LDBL_NAMESPACE): To _GLIBCXX_BEGIN_NAMESPACE_LDBL.
(_GLIBCXX_END_LDBL_NAMESPACE): To _GLIBCXX_END_NAMESPACE_LDBL.
(_GLIBCXX_VISIBILITY_ATTR): Revert to _GLIBCXX_VISIBILITY.
* include/*: Use new macros for namespace scope.
* config/*: Same.
* src/*: Same.
* src/Makefile.am (sources): Remove debug_list.cc, add
compatibility-debug_list-2.cc.
(parallel_sources): Remove parallel_list.cc, add
compatibility-parallel_list-2.cc.
(compatibility-parallel_list-2.[o,lo]): New rule.
* src/Makefile.in: Regenerate.
* src/debug_list.cc: Remove.
* src/parallel_list.cc: Remove.
* src/compatibility-list-2.cc: New.
* src/compatibility-debug_list-2.cc: New.
* src/compatibility-parallel_list-2.cc: New.
* doc/doxygen/user.cfg.in: Adjust macros.
* testsuite/20_util/auto_ptr/assign_neg.cc: Adjust line numbers, macros.
* testsuite/20_util/declval/requirements/1_neg.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Same.
* testsuite/20_util/forward/c_neg.cc: Same.
* testsuite/20_util/forward/f_neg.cc: Same.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Same.
* testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Same.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Same.
* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/forward_list/capacity/1.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
assign_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
insert_neg.cc: Same.
* testsuite/23_containers/list/capacity/29134.cc: Same.
* testsuite/23_containers/list/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/vector/bool/capacity/29134.cc: Same.
* testsuite/23_containers/vector/bool/modifiers/insert/31370.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc: Same.
* testsuite/25_algorithms/sort/35588.cc: Same.
* testsuite/27_io/ios_base/cons/assign_neg.cc: Same.
* testsuite/27_io/ios_base/cons/copy_neg.cc: Same.
* testsuite/ext/profile/mutex_extensions_neg.cc: Same.
* testsuite/ext/profile/profiler_algos.cc: Same.
* testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Same.
* testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc: Same.
From-SVN: r169421
2011-01-30 22:39:36 +00:00
|
|
|
namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
|
|
|
|
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{
|
|
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|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
2005-12-19 00:56:05 +00:00
|
|
|
|
abi.txt: New file.
2002-07-20 Phil Edwards <pme@gcc.gnu.org>
* docs/html/abi.txt: New file.
* docs/html/23_containers/howto.html: Tweak vector-overhead text.
* docs/html/ext/lwg-active.html, docs/html/ext/lwg-defects.html:
Import from upstream, R22.
* include/bits/char_traits.h, include/bits/stl_iterator.h,
include/bits/stl_iterator_base_types.h, libsupc++/exception,
libsupc++/new, libsupc++/typeinfo: Use @brief markup.
* include/bits/deque.tcc, include/bits/stl_alloc.h,
include/bits/stl_deque.h, include/bits/stl_list.h: Postpone removal
of deprecated functions until 3.4. (Same timeframe, different text.)
* include/bits/stl_vector.h: Ditto. Also do the same cleanups that
the other sequence classes received.
From-SVN: r55602
2002-07-20 06:26:27 +00:00
|
|
|
/**
|
2003-07-25 05:32:23 +00:00
|
|
|
* @brief Mapping from character type to associated types.
|
2004-02-08 05:46:42 +01:00
|
|
|
*
|
2003-07-25 05:32:23 +00:00
|
|
|
* @note This is an implementation class for the generic version
|
|
|
|
|
* of char_traits. It defines int_type, off_type, pos_type, and
|
|
|
|
|
* state_type. By default these are unsigned long, streamoff,
|
2004-02-08 05:46:42 +01:00
|
|
|
* streampos, and mbstate_t. Users who need a different set of
|
2003-07-25 05:32:23 +00:00
|
|
|
* types, but who don't need to change the definitions of any function
|
|
|
|
|
* defined in char_traits, can specialize __gnu_cxx::_Char_types
|
|
|
|
|
* while leaving __gnu_cxx::char_traits alone. */
|
2007-08-22 01:26:43 +00:00
|
|
|
template<typename _CharT>
|
2003-07-25 05:32:23 +00:00
|
|
|
struct _Char_types
|
|
|
|
|
{
|
|
|
|
|
typedef unsigned long int_type;
|
|
|
|
|
typedef std::streampos pos_type;
|
|
|
|
|
typedef std::streamoff off_type;
|
|
|
|
|
typedef std::mbstate_t state_type;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief Base class used to implement std::char_traits.
|
|
|
|
|
*
|
|
|
|
|
* @note For any given actual character type, this definition is
|
|
|
|
|
* probably wrong. (Most of the member functions are likely to be
|
|
|
|
|
* right, but the int_type and state_type typedefs, and the eof()
|
|
|
|
|
* member function, are likely to be wrong.) The reason this class
|
|
|
|
|
* exists is so users can specialize it. Classes in namespace std
|
2008-01-31 18:44:55 +00:00
|
|
|
* may not be specialized for fundamental types, but classes in
|
2003-07-25 05:32:23 +00:00
|
|
|
* namespace __gnu_cxx may be.
|
2002-09-01 00:33:53 +00:00
|
|
|
*
|
2014-06-14 21:22:10 +01:00
|
|
|
* See https://gcc.gnu.org/onlinedocs/libstdc++/manual/strings.html#strings.string.character_types
|
2010-02-04 18:20:34 +00:00
|
|
|
* for advice on how to make use of this class for @a unusual character
|
2004-11-05 19:58:03 +00:00
|
|
|
* types. Also, check out include/ext/pod_char_traits.h.
|
|
|
|
|
*/
|
2003-07-25 05:32:23 +00:00
|
|
|
template<typename _CharT>
|
2000-10-05 11:27:02 +00:00
|
|
|
struct char_traits
|
|
|
|
|
{
|
2003-07-25 05:32:23 +00:00
|
|
|
typedef _CharT char_type;
|
|
|
|
|
typedef typename _Char_types<_CharT>::int_type int_type;
|
|
|
|
|
typedef typename _Char_types<_CharT>::pos_type pos_type;
|
|
|
|
|
typedef typename _Char_types<_CharT>::off_type off_type;
|
|
|
|
|
typedef typename _Char_types<_CharT>::state_type state_type;
|
2020-04-17 16:24:49 +01:00
|
|
|
#if __cpp_lib_three_way_comparison
|
|
|
|
|
using comparison_category = std::strong_ordering;
|
|
|
|
|
#endif
|
2004-02-08 05:46:42 +01:00
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX14_CONSTEXPR void
|
2003-07-25 05:32:23 +00:00
|
|
|
assign(char_type& __c1, const char_type& __c2)
|
|
|
|
|
{ __c1 = __c2; }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
2003-07-25 05:32:23 +00:00
|
|
|
eq(const char_type& __c1, const char_type& __c2)
|
|
|
|
|
{ return __c1 == __c2; }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
2003-07-25 05:32:23 +00:00
|
|
|
lt(const char_type& __c1, const char_type& __c2)
|
|
|
|
|
{ return __c1 < __c2; }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX14_CONSTEXPR int
|
2003-07-25 05:32:23 +00:00
|
|
|
compare(const char_type* __s1, const char_type* __s2, std::size_t __n);
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX14_CONSTEXPR std::size_t
|
2002-07-31 02:47:36 +00:00
|
|
|
length(const char_type* __s);
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX14_CONSTEXPR const char_type*
|
2003-07-25 05:32:23 +00:00
|
|
|
find(const char_type* __s, std::size_t __n, const char_type& __a);
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2003-07-25 05:32:23 +00:00
|
|
|
move(char_type* __s1, const char_type* __s2, std::size_t __n);
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2003-07-25 05:32:23 +00:00
|
|
|
copy(char_type* __s1, const char_type* __s2, std::size_t __n);
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2003-07-25 05:32:23 +00:00
|
|
|
assign(char_type* __s, std::size_t __n, char_type __a);
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR char_type
|
2003-07-25 05:32:23 +00:00
|
|
|
to_char_type(const int_type& __c)
|
|
|
|
|
{ return static_cast<char_type>(__c); }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2003-07-25 05:32:23 +00:00
|
|
|
to_int_type(const char_type& __c)
|
|
|
|
|
{ return static_cast<int_type>(__c); }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
2003-07-25 05:32:23 +00:00
|
|
|
eq_int_type(const int_type& __c1, const int_type& __c2)
|
|
|
|
|
{ return __c1 == __c2; }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2003-07-25 05:32:23 +00:00
|
|
|
eof()
|
2010-07-27 10:36:50 +00:00
|
|
|
{ return static_cast<int_type>(_GLIBCXX_STDIO_EOF); }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2003-07-25 05:32:23 +00:00
|
|
|
not_eof(const int_type& __c)
|
2003-08-07 23:01:26 +00:00
|
|
|
{ return !eq_int_type(__c, eof()) ? __c : to_int_type(char_type()); }
|
2000-10-05 11:27:02 +00:00
|
|
|
};
|
|
|
|
|
|
2003-07-25 05:32:23 +00:00
|
|
|
template<typename _CharT>
|
2017-04-03 18:15:53 +01:00
|
|
|
_GLIBCXX14_CONSTEXPR int
|
2003-07-25 05:32:23 +00:00
|
|
|
char_traits<_CharT>::
|
|
|
|
|
compare(const char_type* __s1, const char_type* __s2, std::size_t __n)
|
|
|
|
|
{
|
2006-04-23 14:54:26 +00:00
|
|
|
for (std::size_t __i = 0; __i < __n; ++__i)
|
2003-07-25 05:32:23 +00:00
|
|
|
if (lt(__s1[__i], __s2[__i]))
|
|
|
|
|
return -1;
|
|
|
|
|
else if (lt(__s2[__i], __s1[__i]))
|
|
|
|
|
return 1;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
template<typename _CharT>
|
2017-04-03 18:15:53 +01:00
|
|
|
_GLIBCXX14_CONSTEXPR std::size_t
|
2003-07-25 05:32:23 +00:00
|
|
|
char_traits<_CharT>::
|
|
|
|
|
length(const char_type* __p)
|
|
|
|
|
{
|
|
|
|
|
std::size_t __i = 0;
|
|
|
|
|
while (!eq(__p[__i], char_type()))
|
|
|
|
|
++__i;
|
|
|
|
|
return __i;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
template<typename _CharT>
|
2017-04-03 18:15:53 +01:00
|
|
|
_GLIBCXX14_CONSTEXPR const typename char_traits<_CharT>::char_type*
|
2003-07-25 05:32:23 +00:00
|
|
|
char_traits<_CharT>::
|
|
|
|
|
find(const char_type* __s, std::size_t __n, const char_type& __a)
|
|
|
|
|
{
|
|
|
|
|
for (std::size_t __i = 0; __i < __n; ++__i)
|
|
|
|
|
if (eq(__s[__i], __a))
|
|
|
|
|
return __s + __i;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
template<typename _CharT>
|
2020-04-06 18:30:53 +01:00
|
|
|
_GLIBCXX20_CONSTEXPR
|
2003-07-25 05:32:23 +00:00
|
|
|
typename char_traits<_CharT>::char_type*
|
|
|
|
|
char_traits<_CharT>::
|
|
|
|
|
move(char_type* __s1, const char_type* __s2, std::size_t __n)
|
|
|
|
|
{
|
PR libstdc++/87787 avoid undefined null args to memcpy and memmove
The C++ char_traits and ctype APIs do not disallow null pointer
arguments, so we need explicit checks to ensure we don't forward null
pointers to memcpy or memmove.
PR libstdc++/87787
* include/bits/char_traits.h (char_traits::move): Do not pass null
pointers to memmove.
* include/bits/locale_facets.h
(ctype<char>::widen(const char*, const char*, char*)): Do not
pass null pointers to memcpy.
(ctype<char>::narrow(const char*, const char*, char, char*)):
Likewise.
(ctype<char>::do_widen(const char*, const char*, char*)):
Likewise.
(ctype<char>::do_narrow(const char*, const char*, char, char*)):
Likewise.
From-SVN: r267651
2019-01-07 14:58:44 +00:00
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
{
|
|
|
|
|
if (__s1 > __s2 && __s1 < __s2 + __n)
|
2020-06-15 14:31:26 +01:00
|
|
|
std::copy_backward(__s2, __s2 + __n, __s1 + __n);
|
2020-04-06 18:30:53 +01:00
|
|
|
else
|
|
|
|
|
std::copy(__s2, __s2 + __n, __s1);
|
|
|
|
|
return __s1;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
2007-05-11 18:58:08 +00:00
|
|
|
return static_cast<_CharT*>(__builtin_memmove(__s1, __s2,
|
|
|
|
|
__n * sizeof(char_type)));
|
2003-07-25 05:32:23 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
template<typename _CharT>
|
2020-04-06 18:30:53 +01:00
|
|
|
_GLIBCXX20_CONSTEXPR
|
2004-02-08 05:46:42 +01:00
|
|
|
typename char_traits<_CharT>::char_type*
|
2003-07-25 05:32:23 +00:00
|
|
|
char_traits<_CharT>::
|
|
|
|
|
copy(char_type* __s1, const char_type* __s2, std::size_t __n)
|
|
|
|
|
{
|
2007-09-11 22:32:51 +00:00
|
|
|
// NB: Inline std::copy so no recursive dependencies.
|
2003-07-25 05:32:23 +00:00
|
|
|
std::copy(__s2, __s2 + __n, __s1);
|
|
|
|
|
return __s1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
template<typename _CharT>
|
2020-04-06 18:30:53 +01:00
|
|
|
_GLIBCXX20_CONSTEXPR
|
2004-02-08 05:46:42 +01:00
|
|
|
typename char_traits<_CharT>::char_type*
|
2003-07-25 05:32:23 +00:00
|
|
|
char_traits<_CharT>::
|
|
|
|
|
assign(char_type* __s, std::size_t __n, char_type __a)
|
|
|
|
|
{
|
2007-09-11 22:32:51 +00:00
|
|
|
// NB: Inline std::fill_n so no recursive dependencies.
|
2003-07-25 05:32:23 +00:00
|
|
|
std::fill_n(__s, __n, __a);
|
|
|
|
|
return __s;
|
|
|
|
|
}
|
|
|
|
|
|
PR libstdc++/36104 part four
2011-01-30 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/36104 part four
* include/bits/c++config (_GLIBCXX_STD): Remove.
(_GLIBCXX_STD_D, _GLIBCXX_PR): Now _GLIBCXX_STD_C.
(_GLIBCXX_P): Now _GLIBCXX_STD_A.
(_GLIBCXX_NAMESPACE_DEBUG, _GLIBCXX_NAMESPACE_PARALLEL,
_GLIBCXX_NAMESPACE_PROFILE, _GLIBCXX_NAMESPACE_VERSION): Remove.
(_GLIBCXX_INLINE_DEBUG, _GLIBCXX_INLINE_PARALLEL,
_GLIBCXX_INLINE_PROFILE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE(X)): Remove.
(_GLIBCXX_END_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y)): Remove.
(_GLIBCXX_END_NESTED_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE_ALGO): Add.
(_GLIBCXX_END_NAMESPACE_ALGO): Add.
(_GLIBCXX_BEGIN_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_END_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_BEGIN_NAMESPACE_VERSION): Add.
(_GLIBCXX_END_NAMESPACE_VERSION): Add.
(_GLIBCXX_BEGIN_LDBL_NAMESPACE): To _GLIBCXX_BEGIN_NAMESPACE_LDBL.
(_GLIBCXX_END_LDBL_NAMESPACE): To _GLIBCXX_END_NAMESPACE_LDBL.
(_GLIBCXX_VISIBILITY_ATTR): Revert to _GLIBCXX_VISIBILITY.
* include/*: Use new macros for namespace scope.
* config/*: Same.
* src/*: Same.
* src/Makefile.am (sources): Remove debug_list.cc, add
compatibility-debug_list-2.cc.
(parallel_sources): Remove parallel_list.cc, add
compatibility-parallel_list-2.cc.
(compatibility-parallel_list-2.[o,lo]): New rule.
* src/Makefile.in: Regenerate.
* src/debug_list.cc: Remove.
* src/parallel_list.cc: Remove.
* src/compatibility-list-2.cc: New.
* src/compatibility-debug_list-2.cc: New.
* src/compatibility-parallel_list-2.cc: New.
* doc/doxygen/user.cfg.in: Adjust macros.
* testsuite/20_util/auto_ptr/assign_neg.cc: Adjust line numbers, macros.
* testsuite/20_util/declval/requirements/1_neg.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Same.
* testsuite/20_util/forward/c_neg.cc: Same.
* testsuite/20_util/forward/f_neg.cc: Same.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Same.
* testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Same.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Same.
* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/forward_list/capacity/1.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
assign_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
insert_neg.cc: Same.
* testsuite/23_containers/list/capacity/29134.cc: Same.
* testsuite/23_containers/list/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/vector/bool/capacity/29134.cc: Same.
* testsuite/23_containers/vector/bool/modifiers/insert/31370.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc: Same.
* testsuite/25_algorithms/sort/35588.cc: Same.
* testsuite/27_io/ios_base/cons/assign_neg.cc: Same.
* testsuite/27_io/ios_base/cons/copy_neg.cc: Same.
* testsuite/ext/profile/mutex_extensions_neg.cc: Same.
* testsuite/ext/profile/profiler_algos.cc: Same.
* testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Same.
* testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc: Same.
From-SVN: r169421
2011-01-30 22:39:36 +00:00
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
|
|
|
} // namespace
|
2005-12-19 00:56:05 +00:00
|
|
|
|
PR libstdc++/36104 part four
2011-01-30 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/36104 part four
* include/bits/c++config (_GLIBCXX_STD): Remove.
(_GLIBCXX_STD_D, _GLIBCXX_PR): Now _GLIBCXX_STD_C.
(_GLIBCXX_P): Now _GLIBCXX_STD_A.
(_GLIBCXX_NAMESPACE_DEBUG, _GLIBCXX_NAMESPACE_PARALLEL,
_GLIBCXX_NAMESPACE_PROFILE, _GLIBCXX_NAMESPACE_VERSION): Remove.
(_GLIBCXX_INLINE_DEBUG, _GLIBCXX_INLINE_PARALLEL,
_GLIBCXX_INLINE_PROFILE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE(X)): Remove.
(_GLIBCXX_END_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y)): Remove.
(_GLIBCXX_END_NESTED_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE_ALGO): Add.
(_GLIBCXX_END_NAMESPACE_ALGO): Add.
(_GLIBCXX_BEGIN_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_END_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_BEGIN_NAMESPACE_VERSION): Add.
(_GLIBCXX_END_NAMESPACE_VERSION): Add.
(_GLIBCXX_BEGIN_LDBL_NAMESPACE): To _GLIBCXX_BEGIN_NAMESPACE_LDBL.
(_GLIBCXX_END_LDBL_NAMESPACE): To _GLIBCXX_END_NAMESPACE_LDBL.
(_GLIBCXX_VISIBILITY_ATTR): Revert to _GLIBCXX_VISIBILITY.
* include/*: Use new macros for namespace scope.
* config/*: Same.
* src/*: Same.
* src/Makefile.am (sources): Remove debug_list.cc, add
compatibility-debug_list-2.cc.
(parallel_sources): Remove parallel_list.cc, add
compatibility-parallel_list-2.cc.
(compatibility-parallel_list-2.[o,lo]): New rule.
* src/Makefile.in: Regenerate.
* src/debug_list.cc: Remove.
* src/parallel_list.cc: Remove.
* src/compatibility-list-2.cc: New.
* src/compatibility-debug_list-2.cc: New.
* src/compatibility-parallel_list-2.cc: New.
* doc/doxygen/user.cfg.in: Adjust macros.
* testsuite/20_util/auto_ptr/assign_neg.cc: Adjust line numbers, macros.
* testsuite/20_util/declval/requirements/1_neg.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Same.
* testsuite/20_util/forward/c_neg.cc: Same.
* testsuite/20_util/forward/f_neg.cc: Same.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Same.
* testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Same.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Same.
* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/forward_list/capacity/1.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
assign_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
insert_neg.cc: Same.
* testsuite/23_containers/list/capacity/29134.cc: Same.
* testsuite/23_containers/list/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/vector/bool/capacity/29134.cc: Same.
* testsuite/23_containers/vector/bool/modifiers/insert/31370.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc: Same.
* testsuite/25_algorithms/sort/35588.cc: Same.
* testsuite/27_io/ios_base/cons/assign_neg.cc: Same.
* testsuite/27_io/ios_base/cons/copy_neg.cc: Same.
* testsuite/ext/profile/mutex_extensions_neg.cc: Same.
* testsuite/ext/profile/profiler_algos.cc: Same.
* testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Same.
* testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc: Same.
From-SVN: r169421
2011-01-30 22:39:36 +00:00
|
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namespace std _GLIBCXX_VISIBILITY(default)
|
|
|
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
2005-12-19 00:56:05 +00:00
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2021-06-17 14:11:22 +01:00
|
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#ifdef __cpp_lib_is_constant_evaluated
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|
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// Unofficial macro indicating P1032R1 support in C++20
|
2020-06-15 14:31:26 +01:00
|
|
|
# define __cpp_lib_constexpr_char_traits 201811L
|
2021-06-17 14:11:22 +01:00
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#elif __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
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// Unofficial macro indicating P0426R1 support in C++17
|
|
|
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# define __cpp_lib_constexpr_char_traits 201611L
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
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#endif
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2003-07-25 05:32:23 +00:00
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// 21.1
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/**
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* @brief Basis for explicit traits specializations.
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*
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|
* @note For any given actual character type, this definition is
|
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* probably wrong. Since this is just a thin wrapper around
|
|
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|
* __gnu_cxx::char_traits, it is possible to achieve a more
|
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|
|
* appropriate definition by specializing __gnu_cxx::char_traits.
|
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|
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*
|
2014-06-14 21:22:10 +01:00
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|
|
* See https://gcc.gnu.org/onlinedocs/libstdc++/manual/strings.html#strings.string.character_types
|
2010-02-04 18:20:34 +00:00
|
|
|
* for advice on how to make use of this class for @a unusual character
|
2003-07-25 05:32:23 +00:00
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* types. Also, check out include/ext/pod_char_traits.h.
|
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*/
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template<class _CharT>
|
2004-11-05 19:58:03 +00:00
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struct char_traits : public __gnu_cxx::char_traits<_CharT>
|
2003-07-25 05:32:23 +00:00
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{ };
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2001-01-12 21:24:15 +00:00
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2008-03-26 06:27:35 +00:00
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/// 21.1.3.1 char_traits specializations
|
2000-10-05 11:27:02 +00:00
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template<>
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struct char_traits<char>
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{
|
2003-07-25 05:32:23 +00:00
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typedef char char_type;
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typedef int int_type;
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typedef streampos pos_type;
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typedef streamoff off_type;
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typedef mbstate_t state_type;
|
2020-04-17 16:24:49 +01:00
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#if __cpp_lib_three_way_comparison
|
|
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using comparison_category = strong_ordering;
|
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#endif
|
2000-10-05 11:27:02 +00:00
|
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|
|
2017-04-03 18:15:53 +01:00
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static _GLIBCXX17_CONSTEXPR void
|
2011-05-21 00:05:03 +00:00
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assign(char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
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{ __c1 = __c2; }
|
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2010-11-02 02:35:28 +00:00
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static _GLIBCXX_CONSTEXPR bool
|
2011-05-21 00:05:03 +00:00
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eq(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
re PR libstdc++/22109 (/home/dave/opt/gnu/bin/ld: BFD 2.16.91 20050612 internal error)
PR libstdc++/22109
* src/compatibility.cc (_GLIBCXX_SYMVER_COMPATIBILITY): Remove.
(istreambuf_iterator, basic_fstream, basic_ifstream, basic_ofstream,
_M_copy, _M_move, _M_assign, _M_disjunct, _M_check_length,
_M_set_length_and_sharable, ignore, eq): Define to XX suffixed
variants.
(ignore (streamsize)): Remove _W prefixed aliases.
(_GLIBCXX_3_4_SYMVER_SPECIAL, _GLIBCXX_3_4_5_SYMVER_SPECIAL,
_GLIBCXX_APPLY_SYMVER_SPECIAL): Remove.
(_GLIBCXX_3_4_SYMVER, _GLIBCXX_3_4_5_SYMVER): Add XXname argument.
Use #XXname instead of #name as the alias argument.
* config/abi/compatibility.h: Replace uses of
_GLIBCXX_APPLY_SYMVER_SPECIAL with _GLIBCXX_APPLY_SYMVER. Always
pass 2 arguments to the _GLIBCXX_APPLY_SYMVER macro.
* include/bits/char_traits.h (char_traits::eq): Revert 2005-06-15
change.
* acinclude.m4: Decrease glibcxx_min_gnu_ld_version back to 21400.
* configure: Rebuilt.
From-SVN: r101273
2005-06-23 18:49:00 +02:00
|
|
|
{ return __c1 == __c2; }
|
2000-10-05 11:27:02 +00:00
|
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|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
2011-05-21 00:05:03 +00:00
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|
|
lt(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
2013-06-25 08:39:31 +00:00
|
|
|
{
|
|
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|
|
// LWG 467.
|
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|
return (static_cast<unsigned char>(__c1)
|
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|
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< static_cast<unsigned char>(__c2));
|
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|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
static _GLIBCXX17_CONSTEXPR int
|
2000-10-05 11:27:02 +00:00
|
|
|
compare(const char_type* __s1, const char_type* __s2, size_t __n)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
2019-02-23 03:01:59 +00:00
|
|
|
if (__n == 0)
|
|
|
|
|
return 0;
|
2021-06-17 14:11:22 +01:00
|
|
|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
2021-02-23 09:30:18 +01:00
|
|
|
{
|
|
|
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
|
|
|
if (lt(__s1[__i], __s2[__i]))
|
|
|
|
|
return -1;
|
|
|
|
|
else if (lt(__s2[__i], __s1[__i]))
|
|
|
|
|
return 1;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
#endif
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
return __builtin_memcmp(__s1, __s2, __n);
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
static _GLIBCXX17_CONSTEXPR size_t
|
2000-10-05 11:27:02 +00:00
|
|
|
length(const char_type* __s)
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
{
|
2021-06-17 14:11:22 +01:00
|
|
|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
return __gnu_cxx::char_traits<char_type>::length(__s);
|
|
|
|
|
#endif
|
|
|
|
|
return __builtin_strlen(__s);
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
static _GLIBCXX17_CONSTEXPR const char_type*
|
2000-10-05 11:27:02 +00:00
|
|
|
find(const char_type* __s, size_t __n, const char_type& __a)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
2019-02-23 03:01:59 +00:00
|
|
|
if (__n == 0)
|
|
|
|
|
return 0;
|
2021-06-17 14:11:22 +01:00
|
|
|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
return __gnu_cxx::char_traits<char_type>::find(__s, __n, __a);
|
|
|
|
|
#endif
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
return static_cast<const char_type*>(__builtin_memchr(__s, __a, __n));
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2000-10-05 11:27:02 +00:00
|
|
|
move(char_type* __s1, const char_type* __s2, size_t __n)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::move(__s1, __s2, __n);
|
|
|
|
|
#endif
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
return static_cast<char_type*>(__builtin_memmove(__s1, __s2, __n));
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2000-10-05 11:27:02 +00:00
|
|
|
copy(char_type* __s1, const char_type* __s2, size_t __n)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::copy(__s1, __s2, __n);
|
|
|
|
|
#endif
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
return static_cast<char_type*>(__builtin_memcpy(__s1, __s2, __n));
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2000-10-05 11:27:02 +00:00
|
|
|
assign(char_type* __s, size_t __n, char_type __a)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::assign(__s, __n, __a);
|
|
|
|
|
#endif
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
return static_cast<char_type*>(__builtin_memset(__s, __a, __n));
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR char_type
|
2011-05-21 00:05:03 +00:00
|
|
|
to_char_type(const int_type& __c) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
|
|
|
{ return static_cast<char_type>(__c); }
|
|
|
|
|
|
|
|
|
|
// To keep both the byte 0xff and the eof symbol 0xffffffff
|
|
|
|
|
// from ending up as 0xffffffff.
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2011-05-21 00:05:03 +00:00
|
|
|
to_int_type(const char_type& __c) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
|
|
|
{ return static_cast<int_type>(static_cast<unsigned char>(__c)); }
|
|
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
2011-05-21 00:05:03 +00:00
|
|
|
eq_int_type(const int_type& __c1, const int_type& __c2) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
|
|
|
{ return __c1 == __c2; }
|
|
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2011-05-21 00:05:03 +00:00
|
|
|
eof() _GLIBCXX_NOEXCEPT
|
2010-07-27 10:36:50 +00:00
|
|
|
{ return static_cast<int_type>(_GLIBCXX_STDIO_EOF); }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2011-05-21 00:05:03 +00:00
|
|
|
not_eof(const int_type& __c) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
|
|
|
{ return (__c == eof()) ? 0 : __c; }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
2003-07-05 04:05:45 +00:00
|
|
|
#ifdef _GLIBCXX_USE_WCHAR_T
|
2008-03-26 06:27:35 +00:00
|
|
|
/// 21.1.3.2 char_traits specializations
|
2000-10-05 11:27:02 +00:00
|
|
|
template<>
|
|
|
|
|
struct char_traits<wchar_t>
|
|
|
|
|
{
|
2003-07-25 05:32:23 +00:00
|
|
|
typedef wchar_t char_type;
|
|
|
|
|
typedef wint_t int_type;
|
|
|
|
|
typedef streamoff off_type;
|
|
|
|
|
typedef wstreampos pos_type;
|
|
|
|
|
typedef mbstate_t state_type;
|
2020-04-17 16:24:49 +01:00
|
|
|
#if __cpp_lib_three_way_comparison
|
|
|
|
|
using comparison_category = strong_ordering;
|
|
|
|
|
#endif
|
2004-02-08 05:46:42 +01:00
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR void
|
2011-05-21 00:05:03 +00:00
|
|
|
assign(char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
|
|
|
{ __c1 = __c2; }
|
|
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
2011-05-21 00:05:03 +00:00
|
|
|
eq(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
re PR libstdc++/22109 (/home/dave/opt/gnu/bin/ld: BFD 2.16.91 20050612 internal error)
PR libstdc++/22109
* src/compatibility.cc (_GLIBCXX_SYMVER_COMPATIBILITY): Remove.
(istreambuf_iterator, basic_fstream, basic_ifstream, basic_ofstream,
_M_copy, _M_move, _M_assign, _M_disjunct, _M_check_length,
_M_set_length_and_sharable, ignore, eq): Define to XX suffixed
variants.
(ignore (streamsize)): Remove _W prefixed aliases.
(_GLIBCXX_3_4_SYMVER_SPECIAL, _GLIBCXX_3_4_5_SYMVER_SPECIAL,
_GLIBCXX_APPLY_SYMVER_SPECIAL): Remove.
(_GLIBCXX_3_4_SYMVER, _GLIBCXX_3_4_5_SYMVER): Add XXname argument.
Use #XXname instead of #name as the alias argument.
* config/abi/compatibility.h: Replace uses of
_GLIBCXX_APPLY_SYMVER_SPECIAL with _GLIBCXX_APPLY_SYMVER. Always
pass 2 arguments to the _GLIBCXX_APPLY_SYMVER macro.
* include/bits/char_traits.h (char_traits::eq): Revert 2005-06-15
change.
* acinclude.m4: Decrease glibcxx_min_gnu_ld_version back to 21400.
* configure: Rebuilt.
From-SVN: r101273
2005-06-23 18:49:00 +02:00
|
|
|
{ return __c1 == __c2; }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
2011-05-21 00:05:03 +00:00
|
|
|
lt(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
|
|
|
{ return __c1 < __c2; }
|
|
|
|
|
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
static _GLIBCXX17_CONSTEXPR int
|
2000-10-05 11:27:02 +00:00
|
|
|
compare(const char_type* __s1, const char_type* __s2, size_t __n)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
2019-02-23 03:01:59 +00:00
|
|
|
if (__n == 0)
|
|
|
|
|
return 0;
|
2021-06-17 14:11:22 +01:00
|
|
|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
return __gnu_cxx::char_traits<char_type>::compare(__s1, __s2, __n);
|
|
|
|
|
#endif
|
2019-02-23 03:01:59 +00:00
|
|
|
return wmemcmp(__s1, __s2, __n);
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
static _GLIBCXX17_CONSTEXPR size_t
|
2000-10-05 11:27:02 +00:00
|
|
|
length(const char_type* __s)
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
{
|
2021-06-17 14:11:22 +01:00
|
|
|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
return __gnu_cxx::char_traits<char_type>::length(__s);
|
|
|
|
|
#endif
|
2019-02-23 03:01:59 +00:00
|
|
|
return wcslen(__s);
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
static _GLIBCXX17_CONSTEXPR const char_type*
|
2000-10-05 11:27:02 +00:00
|
|
|
find(const char_type* __s, size_t __n, const char_type& __a)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
2019-02-23 03:01:59 +00:00
|
|
|
if (__n == 0)
|
|
|
|
|
return 0;
|
2021-06-17 14:11:22 +01:00
|
|
|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
Finish implementing P0426R1 "Constexpr for std::char_traits" for C++17
As discussed in PR c++/80265 ("__builtin_{memcmp,memchr,strlen} are
not usable in constexpr functions"), use __builtin_constant_p to tell
whether we can defer to a constexpr algorithm.
I used __always_inline__ just to be thorough. It isn't really really
necessary as far as I could determine.
Changes like these:
if (__n == 0)
return 0;
- return wmemcmp(__s1, __s2, __n);
+ else
+ return wmemcmp(__s1, __s2, __n);
are necessary otherwise G++ complains that we're calling a
non-constexpr function, which looks like a a manifestation of PR67026
to me.
libstdc++-v3:
2017-06-12 Pedro Alves <palves@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
char_traits status.
* doc/html/*: Regenerate.
* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
not already defined.
(__cpp_lib_constexpr_char_traits): Uncomment.
(__constant_string_p, __constant_char_array_p): New.
(std::char_traits<char>, std::char_traits<wchar_t>): Add
_GLIBCXX17_CONSTEXPR on compare, length and find and use
__constant_string_p, __constant_char_array_p and
__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
time.
* testsuite/21_strings/char_traits/requirements/
constexpr_functions_c++17.cc: Uncomment
__cpp_lib_constexpr_char_traits tests. Uncomment
test_compare<char>, test_length<char>, test_find<char>,
test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
static_assert tests.
From-SVN: r249137
2017-06-12 22:22:39 +00:00
|
|
|
return __gnu_cxx::char_traits<char_type>::find(__s, __n, __a);
|
|
|
|
|
#endif
|
2019-02-23 03:01:59 +00:00
|
|
|
return wmemchr(__s, __a, __n);
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2003-07-15 17:30:10 +00:00
|
|
|
move(char_type* __s1, const char_type* __s2, size_t __n)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::move(__s1, __s2, __n);
|
|
|
|
|
#endif
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
return wmemmove(__s1, __s2, __n);
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2000-10-05 11:27:02 +00:00
|
|
|
copy(char_type* __s1, const char_type* __s2, size_t __n)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::copy(__s1, __s2, __n);
|
|
|
|
|
#endif
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
return wmemcpy(__s1, __s2, __n);
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2000-10-05 11:27:02 +00:00
|
|
|
assign(char_type* __s, size_t __n, char_type __a)
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::assign(__s, __n, __a);
|
|
|
|
|
#endif
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
return wmemset(__s, __a, __n);
|
|
|
|
|
}
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR char_type
|
2011-05-21 00:05:03 +00:00
|
|
|
to_char_type(const int_type& __c) _GLIBCXX_NOEXCEPT
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{ return char_type(__c); }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2011-05-21 00:05:03 +00:00
|
|
|
to_int_type(const char_type& __c) _GLIBCXX_NOEXCEPT
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{ return int_type(__c); }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
2011-05-21 00:05:03 +00:00
|
|
|
eq_int_type(const int_type& __c1, const int_type& __c2) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
|
|
|
{ return __c1 == __c2; }
|
|
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2011-05-21 00:05:03 +00:00
|
|
|
eof() _GLIBCXX_NOEXCEPT
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{ return static_cast<int_type>(WEOF); }
|
2000-10-05 11:27:02 +00:00
|
|
|
|
2010-11-02 02:35:28 +00:00
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
2011-05-21 00:05:03 +00:00
|
|
|
not_eof(const int_type& __c) _GLIBCXX_NOEXCEPT
|
2000-10-05 11:27:02 +00:00
|
|
|
{ return eq_int_type(__c, eof()) ? 0 : __c; }
|
|
|
|
|
};
|
2003-07-05 04:05:45 +00:00
|
|
|
#endif //_GLIBCXX_USE_WCHAR_T
|
2000-10-05 11:27:02 +00:00
|
|
|
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
#ifdef _GLIBCXX_USE_CHAR8_T
|
|
|
|
|
template<>
|
|
|
|
|
struct char_traits<char8_t>
|
|
|
|
|
{
|
|
|
|
|
typedef char8_t char_type;
|
|
|
|
|
typedef unsigned int int_type;
|
|
|
|
|
typedef u8streampos pos_type;
|
|
|
|
|
typedef streamoff off_type;
|
|
|
|
|
typedef mbstate_t state_type;
|
2020-04-17 16:24:49 +01:00
|
|
|
#if __cpp_lib_three_way_comparison
|
|
|
|
|
using comparison_category = strong_ordering;
|
|
|
|
|
#endif
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
|
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|
|
|
static _GLIBCXX17_CONSTEXPR void
|
|
|
|
|
assign(char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
|
|
|
|
{ __c1 = __c2; }
|
|
|
|
|
|
|
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
|
|
|
|
eq(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
|
|
|
|
{ return __c1 == __c2; }
|
|
|
|
|
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static _GLIBCXX_CONSTEXPR bool
|
|
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|
|
lt(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT
|
|
|
|
|
{ return __c1 < __c2; }
|
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static _GLIBCXX17_CONSTEXPR int
|
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|
compare(const char_type* __s1, const char_type* __s2, size_t __n)
|
|
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|
|
{
|
2019-02-23 03:01:59 +00:00
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|
|
if (__n == 0)
|
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return 0;
|
2021-06-17 14:11:22 +01:00
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|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
return __gnu_cxx::char_traits<char_type>::compare(__s1, __s2, __n);
|
|
|
|
|
#endif
|
|
|
|
|
return __builtin_memcmp(__s1, __s2, __n);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static _GLIBCXX17_CONSTEXPR size_t
|
|
|
|
|
length(const char_type* __s)
|
|
|
|
|
{
|
2021-06-17 14:11:22 +01:00
|
|
|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
return __gnu_cxx::char_traits<char_type>::length(__s);
|
|
|
|
|
#endif
|
|
|
|
|
size_t __i = 0;
|
|
|
|
|
while (!eq(__s[__i], char_type()))
|
|
|
|
|
++__i;
|
|
|
|
|
return __i;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static _GLIBCXX17_CONSTEXPR const char_type*
|
|
|
|
|
find(const char_type* __s, size_t __n, const char_type& __a)
|
|
|
|
|
{
|
2019-02-23 03:01:59 +00:00
|
|
|
if (__n == 0)
|
|
|
|
|
return 0;
|
2021-06-17 14:11:22 +01:00
|
|
|
#if __cplusplus >= 201703L && _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
|
|
|
|
|
if (__builtin_is_constant_evaluated())
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
return __gnu_cxx::char_traits<char_type>::find(__s, __n, __a);
|
|
|
|
|
#endif
|
|
|
|
|
return static_cast<const char_type*>(__builtin_memchr(__s, __a, __n));
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
move(char_type* __s1, const char_type* __s2, size_t __n)
|
|
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::move(__s1, __s2, __n);
|
|
|
|
|
#endif
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
return static_cast<char_type*>(__builtin_memmove(__s1, __s2, __n));
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
copy(char_type* __s1, const char_type* __s2, size_t __n)
|
|
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::copy(__s1, __s2, __n);
|
|
|
|
|
#endif
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
return static_cast<char_type*>(__builtin_memcpy(__s1, __s2, __n));
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
assign(char_type* __s, size_t __n, char_type __a)
|
|
|
|
|
{
|
|
|
|
|
if (__n == 0)
|
|
|
|
|
return __s;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::assign(__s, __n, __a);
|
|
|
|
|
#endif
|
P0482R5 char8_t: Standard library support
gcc/cp:
2019-02-19 Tom Honermann <tom@honermann.net>
* name-lookup.c (get_std_name_hint): Added u8string as a name hint.
libstdc++:
2019-02-19 Tom Honermann <tom@honermann.net>
P0482R5 char8_t: Standard library support
* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
typeinfo symbols for char8_t.
* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
(GLIBCXX_3.4.26): Add symbols for specializations of
numeric_limits and codecvt that involve char8_t.
(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
* include/bits/atomic_base.h: Add atomic_char8_t.
* include/bits/basic_string.h: Add std::hash<u8string> and
operator""s(const char8_t*, size_t).
* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
__cpp_lib_char8_t.
* include/bits/char_traits.h: Add char_traits<char8_t>.
* include/bits/codecvt.h: Add
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
recognize char8_t as an integral type.
* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/bits/functional_hash.h: Add hash<char8_t>.
* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
char8_t.
* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
for new char8_t specializations.
* include/bits/localefwd.h: Add missing declarations of
codecvt<char16_t, char, mbstate_t> and
codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t>.
* include/bits/postypes.h: Add u8streampos
* include/bits/stringfwd.h: Add declarations of
char_traits<char8_t> and u8string.
* include/c_global/cstddef: Add __byte_operand<char8_t>.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Recognize char8_t.
(path::u8string): Return std::u8string when char8_t support is
enabled.
(path::generic_u8string): Likewise.
(path::_S_convert): Handle conversion from char8_t input.
(path::_S_str_convert): Likewise.
* include/experimental/string: Add u8string.
* include/experimental/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
as a character type.
* include/std/limits: Add numeric_limits<char8_t>.
* include/std/string_view: Add u8string_view,
hash<experimental::u8string_view>, and
operator""sv(const char8_t*, size_t).
* include/std/type_traits: Add __is_integral_helper<char8_t>,
__make_unsigned<char8_t>, and __make_signed<char8_t>.
* libsupc++/atomic_lockfree_defines.h: Define
ATOMIC_CHAR8_T_LOCK_FREE.
* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
codecvt.cc and limits.cc so that char8_t specializations of
numeric_limits and codecvt and emitted.
* src/c++11/Makefile.in: Likewise.
* src/c++11/codecvt.cc: Define members of
codecvt<char16_t, char8_t, mbstate_t>,
codecvt<char32_t, char8_t, mbstate_t>,
codecvt_byname<char16_t, char8_t, mbstate_t>, and
codecvt_byname<char32_t, char8_t, mbstate_t>.
* src/c++11/limits.cc: Define members of
numeric_limits<char8_t>.
* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
locale_init.cc and localename.cc.
* src/c++98/Makefile.in: Likewise.
* src/c++98/locale_init.cc: Add initialization for the
codecvt<char16_t, char8_t, mbstate_t> and
codecvt<char32_t, char8_t, mbstate_t> facets.
* src/c++98/localename.cc: Likewise.
* testsuite/util/testsuite_abi.cc: Validate ABI bump.
From-SVN: r269004
2019-02-19 02:54:42 +00:00
|
|
|
return static_cast<char_type*>(__builtin_memset(__s, __a, __n));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static _GLIBCXX_CONSTEXPR char_type
|
|
|
|
|
to_char_type(const int_type& __c) _GLIBCXX_NOEXCEPT
|
|
|
|
|
{ return char_type(__c); }
|
|
|
|
|
|
|
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
|
|
|
|
to_int_type(const char_type& __c) _GLIBCXX_NOEXCEPT
|
|
|
|
|
{ return int_type(__c); }
|
|
|
|
|
|
|
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
|
|
|
|
eq_int_type(const int_type& __c1, const int_type& __c2) _GLIBCXX_NOEXCEPT
|
|
|
|
|
{ return __c1 == __c2; }
|
|
|
|
|
|
|
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
|
|
|
|
eof() _GLIBCXX_NOEXCEPT
|
|
|
|
|
{ return static_cast<int_type>(-1); }
|
|
|
|
|
|
|
|
|
|
static _GLIBCXX_CONSTEXPR int_type
|
|
|
|
|
not_eof(const int_type& __c) _GLIBCXX_NOEXCEPT
|
|
|
|
|
{ return eq_int_type(__c, eof()) ? 0 : __c; }
|
|
|
|
|
};
|
|
|
|
|
#endif //_GLIBCXX_USE_CHAR8_T
|
|
|
|
|
|
PR libstdc++/36104 part four
2011-01-30 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/36104 part four
* include/bits/c++config (_GLIBCXX_STD): Remove.
(_GLIBCXX_STD_D, _GLIBCXX_PR): Now _GLIBCXX_STD_C.
(_GLIBCXX_P): Now _GLIBCXX_STD_A.
(_GLIBCXX_NAMESPACE_DEBUG, _GLIBCXX_NAMESPACE_PARALLEL,
_GLIBCXX_NAMESPACE_PROFILE, _GLIBCXX_NAMESPACE_VERSION): Remove.
(_GLIBCXX_INLINE_DEBUG, _GLIBCXX_INLINE_PARALLEL,
_GLIBCXX_INLINE_PROFILE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE(X)): Remove.
(_GLIBCXX_END_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y)): Remove.
(_GLIBCXX_END_NESTED_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE_ALGO): Add.
(_GLIBCXX_END_NAMESPACE_ALGO): Add.
(_GLIBCXX_BEGIN_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_END_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_BEGIN_NAMESPACE_VERSION): Add.
(_GLIBCXX_END_NAMESPACE_VERSION): Add.
(_GLIBCXX_BEGIN_LDBL_NAMESPACE): To _GLIBCXX_BEGIN_NAMESPACE_LDBL.
(_GLIBCXX_END_LDBL_NAMESPACE): To _GLIBCXX_END_NAMESPACE_LDBL.
(_GLIBCXX_VISIBILITY_ATTR): Revert to _GLIBCXX_VISIBILITY.
* include/*: Use new macros for namespace scope.
* config/*: Same.
* src/*: Same.
* src/Makefile.am (sources): Remove debug_list.cc, add
compatibility-debug_list-2.cc.
(parallel_sources): Remove parallel_list.cc, add
compatibility-parallel_list-2.cc.
(compatibility-parallel_list-2.[o,lo]): New rule.
* src/Makefile.in: Regenerate.
* src/debug_list.cc: Remove.
* src/parallel_list.cc: Remove.
* src/compatibility-list-2.cc: New.
* src/compatibility-debug_list-2.cc: New.
* src/compatibility-parallel_list-2.cc: New.
* doc/doxygen/user.cfg.in: Adjust macros.
* testsuite/20_util/auto_ptr/assign_neg.cc: Adjust line numbers, macros.
* testsuite/20_util/declval/requirements/1_neg.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Same.
* testsuite/20_util/forward/c_neg.cc: Same.
* testsuite/20_util/forward/f_neg.cc: Same.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Same.
* testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Same.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Same.
* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/forward_list/capacity/1.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
assign_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
insert_neg.cc: Same.
* testsuite/23_containers/list/capacity/29134.cc: Same.
* testsuite/23_containers/list/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/vector/bool/capacity/29134.cc: Same.
* testsuite/23_containers/vector/bool/modifiers/insert/31370.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc: Same.
* testsuite/25_algorithms/sort/35588.cc: Same.
* testsuite/27_io/ios_base/cons/assign_neg.cc: Same.
* testsuite/27_io/ios_base/cons/copy_neg.cc: Same.
* testsuite/ext/profile/mutex_extensions_neg.cc: Same.
* testsuite/ext/profile/profiler_algos.cc: Same.
* testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Same.
* testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc: Same.
From-SVN: r169421
2011-01-30 22:39:36 +00:00
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
|
|
|
} // namespace
|
2000-10-05 11:27:02 +00:00
|
|
|
|
Remove char16_t and char32_t dependency on <stdint.h>
The char16_t and char32_t types are automatically defined by the
compiler and do not depend on support in <stdint.h>. The char_traits
specializations depend on uint_leastNN_t but can be made to work anyway
by using the predefined macros, or as a last resort make_unsigned.
* include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<u16string>, hash<u32string>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
__UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
* include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>)
(codecvt_byname<char16_t, char, mbstate_t>)
(codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
* include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>)
(basic_string<char16_t>, basic_string<char32_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<__u16vstring>, hash<__u32vstring>): Likewise.
* include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
(__u32sso_string, __u32rc_string): Likewise.
* include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
(codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
* include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* src/c++11/codecvt.cc: Likewise.
* src/c++98/locale_init.cc: Likewise.
* src/c++98/localename.cc: Likewise.
From-SVN: r263002
2018-07-26 15:02:01 +01:00
|
|
|
#if __cplusplus >= 201103L
|
2008-08-20 19:29:54 +00:00
|
|
|
|
|
|
|
|
#include <cstdint>
|
|
|
|
|
|
PR libstdc++/36104 part four
2011-01-30 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/36104 part four
* include/bits/c++config (_GLIBCXX_STD): Remove.
(_GLIBCXX_STD_D, _GLIBCXX_PR): Now _GLIBCXX_STD_C.
(_GLIBCXX_P): Now _GLIBCXX_STD_A.
(_GLIBCXX_NAMESPACE_DEBUG, _GLIBCXX_NAMESPACE_PARALLEL,
_GLIBCXX_NAMESPACE_PROFILE, _GLIBCXX_NAMESPACE_VERSION): Remove.
(_GLIBCXX_INLINE_DEBUG, _GLIBCXX_INLINE_PARALLEL,
_GLIBCXX_INLINE_PROFILE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE(X)): Remove.
(_GLIBCXX_END_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y)): Remove.
(_GLIBCXX_END_NESTED_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE_ALGO): Add.
(_GLIBCXX_END_NAMESPACE_ALGO): Add.
(_GLIBCXX_BEGIN_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_END_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_BEGIN_NAMESPACE_VERSION): Add.
(_GLIBCXX_END_NAMESPACE_VERSION): Add.
(_GLIBCXX_BEGIN_LDBL_NAMESPACE): To _GLIBCXX_BEGIN_NAMESPACE_LDBL.
(_GLIBCXX_END_LDBL_NAMESPACE): To _GLIBCXX_END_NAMESPACE_LDBL.
(_GLIBCXX_VISIBILITY_ATTR): Revert to _GLIBCXX_VISIBILITY.
* include/*: Use new macros for namespace scope.
* config/*: Same.
* src/*: Same.
* src/Makefile.am (sources): Remove debug_list.cc, add
compatibility-debug_list-2.cc.
(parallel_sources): Remove parallel_list.cc, add
compatibility-parallel_list-2.cc.
(compatibility-parallel_list-2.[o,lo]): New rule.
* src/Makefile.in: Regenerate.
* src/debug_list.cc: Remove.
* src/parallel_list.cc: Remove.
* src/compatibility-list-2.cc: New.
* src/compatibility-debug_list-2.cc: New.
* src/compatibility-parallel_list-2.cc: New.
* doc/doxygen/user.cfg.in: Adjust macros.
* testsuite/20_util/auto_ptr/assign_neg.cc: Adjust line numbers, macros.
* testsuite/20_util/declval/requirements/1_neg.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Same.
* testsuite/20_util/forward/c_neg.cc: Same.
* testsuite/20_util/forward/f_neg.cc: Same.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Same.
* testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Same.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Same.
* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/forward_list/capacity/1.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
assign_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
insert_neg.cc: Same.
* testsuite/23_containers/list/capacity/29134.cc: Same.
* testsuite/23_containers/list/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/vector/bool/capacity/29134.cc: Same.
* testsuite/23_containers/vector/bool/modifiers/insert/31370.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc: Same.
* testsuite/25_algorithms/sort/35588.cc: Same.
* testsuite/27_io/ios_base/cons/assign_neg.cc: Same.
* testsuite/27_io/ios_base/cons/copy_neg.cc: Same.
* testsuite/ext/profile/mutex_extensions_neg.cc: Same.
* testsuite/ext/profile/profiler_algos.cc: Same.
* testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Same.
* testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc: Same.
From-SVN: r169421
2011-01-30 22:39:36 +00:00
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
|
|
|
{
|
|
|
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
2008-08-20 19:29:54 +00:00
|
|
|
|
|
|
|
|
template<>
|
|
|
|
|
struct char_traits<char16_t>
|
|
|
|
|
{
|
|
|
|
|
typedef char16_t char_type;
|
Remove char16_t and char32_t dependency on <stdint.h>
The char16_t and char32_t types are automatically defined by the
compiler and do not depend on support in <stdint.h>. The char_traits
specializations depend on uint_leastNN_t but can be made to work anyway
by using the predefined macros, or as a last resort make_unsigned.
* include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<u16string>, hash<u32string>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
__UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
* include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>)
(codecvt_byname<char16_t, char, mbstate_t>)
(codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
* include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>)
(basic_string<char16_t>, basic_string<char32_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<__u16vstring>, hash<__u32vstring>): Likewise.
* include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
(__u32sso_string, __u32rc_string): Likewise.
* include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
(codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
* include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* src/c++11/codecvt.cc: Likewise.
* src/c++98/locale_init.cc: Likewise.
* src/c++98/localename.cc: Likewise.
From-SVN: r263002
2018-07-26 15:02:01 +01:00
|
|
|
#ifdef _GLIBCXX_USE_C99_STDINT_TR1
|
2008-08-20 19:29:54 +00:00
|
|
|
typedef uint_least16_t int_type;
|
Remove char16_t and char32_t dependency on <stdint.h>
The char16_t and char32_t types are automatically defined by the
compiler and do not depend on support in <stdint.h>. The char_traits
specializations depend on uint_leastNN_t but can be made to work anyway
by using the predefined macros, or as a last resort make_unsigned.
* include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<u16string>, hash<u32string>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
__UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
* include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>)
(codecvt_byname<char16_t, char, mbstate_t>)
(codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
* include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>)
(basic_string<char16_t>, basic_string<char32_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<__u16vstring>, hash<__u32vstring>): Likewise.
* include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
(__u32sso_string, __u32rc_string): Likewise.
* include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
(codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
* include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* src/c++11/codecvt.cc: Likewise.
* src/c++98/locale_init.cc: Likewise.
* src/c++98/localename.cc: Likewise.
From-SVN: r263002
2018-07-26 15:02:01 +01:00
|
|
|
#elif defined __UINT_LEAST16_TYPE__
|
|
|
|
|
typedef __UINT_LEAST16_TYPE__ int_type;
|
|
|
|
|
#else
|
|
|
|
|
typedef make_unsigned<char16_t>::type int_type;
|
|
|
|
|
#endif
|
2008-08-20 19:29:54 +00:00
|
|
|
typedef streamoff off_type;
|
|
|
|
|
typedef u16streampos pos_type;
|
|
|
|
|
typedef mbstate_t state_type;
|
2020-04-17 16:24:49 +01:00
|
|
|
#if __cpp_lib_three_way_comparison
|
|
|
|
|
using comparison_category = strong_ordering;
|
|
|
|
|
#endif
|
2008-08-20 19:29:54 +00:00
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR void
|
2011-05-21 00:05:03 +00:00
|
|
|
assign(char_type& __c1, const char_type& __c2) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ __c1 = __c2; }
|
|
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr bool
|
|
|
|
|
eq(const char_type& __c1, const char_type& __c2) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ return __c1 == __c2; }
|
|
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr bool
|
|
|
|
|
lt(const char_type& __c1, const char_type& __c2) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ return __c1 < __c2; }
|
|
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR int
|
2008-08-20 19:29:54 +00:00
|
|
|
compare(const char_type* __s1, const char_type* __s2, size_t __n)
|
|
|
|
|
{
|
|
|
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
|
|
|
if (lt(__s1[__i], __s2[__i]))
|
|
|
|
|
return -1;
|
|
|
|
|
else if (lt(__s2[__i], __s1[__i]))
|
|
|
|
|
return 1;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR size_t
|
2008-08-20 19:29:54 +00:00
|
|
|
length(const char_type* __s)
|
|
|
|
|
{
|
|
|
|
|
size_t __i = 0;
|
|
|
|
|
while (!eq(__s[__i], char_type()))
|
|
|
|
|
++__i;
|
|
|
|
|
return __i;
|
|
|
|
|
}
|
|
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR const char_type*
|
2008-08-20 19:29:54 +00:00
|
|
|
find(const char_type* __s, size_t __n, const char_type& __a)
|
|
|
|
|
{
|
|
|
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
|
|
|
if (eq(__s[__i], __a))
|
|
|
|
|
return __s + __i;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2008-08-20 19:29:54 +00:00
|
|
|
move(char_type* __s1, const char_type* __s2, size_t __n)
|
|
|
|
|
{
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::move(__s1, __s2, __n);
|
|
|
|
|
#endif
|
2008-08-20 19:29:54 +00:00
|
|
|
return (static_cast<char_type*>
|
|
|
|
|
(__builtin_memmove(__s1, __s2, __n * sizeof(char_type))));
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2008-08-20 19:29:54 +00:00
|
|
|
copy(char_type* __s1, const char_type* __s2, size_t __n)
|
|
|
|
|
{
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::copy(__s1, __s2, __n);
|
|
|
|
|
#endif
|
2008-08-20 19:29:54 +00:00
|
|
|
return (static_cast<char_type*>
|
|
|
|
|
(__builtin_memcpy(__s1, __s2, __n * sizeof(char_type))));
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2008-08-20 19:29:54 +00:00
|
|
|
assign(char_type* __s, size_t __n, char_type __a)
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{
|
|
|
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
|
|
|
assign(__s[__i], __a);
|
2008-08-20 19:29:54 +00:00
|
|
|
return __s;
|
|
|
|
|
}
|
|
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr char_type
|
|
|
|
|
to_char_type(const int_type& __c) noexcept
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{ return char_type(__c); }
|
2008-08-20 19:29:54 +00:00
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr int_type
|
|
|
|
|
to_int_type(const char_type& __c) noexcept
|
2017-06-02 19:35:37 +01:00
|
|
|
{ return __c == eof() ? int_type(0xfffd) : int_type(__c); }
|
2008-08-20 19:29:54 +00:00
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr bool
|
|
|
|
|
eq_int_type(const int_type& __c1, const int_type& __c2) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ return __c1 == __c2; }
|
|
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr int_type
|
|
|
|
|
eof() noexcept
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{ return static_cast<int_type>(-1); }
|
2008-08-20 19:29:54 +00:00
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr int_type
|
|
|
|
|
not_eof(const int_type& __c) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ return eq_int_type(__c, eof()) ? 0 : __c; }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<>
|
|
|
|
|
struct char_traits<char32_t>
|
|
|
|
|
{
|
|
|
|
|
typedef char32_t char_type;
|
Remove char16_t and char32_t dependency on <stdint.h>
The char16_t and char32_t types are automatically defined by the
compiler and do not depend on support in <stdint.h>. The char_traits
specializations depend on uint_leastNN_t but can be made to work anyway
by using the predefined macros, or as a last resort make_unsigned.
* include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<u16string>, hash<u32string>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
__UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
* include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>)
(codecvt_byname<char16_t, char, mbstate_t>)
(codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
* include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>)
(basic_string<char16_t>, basic_string<char32_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<__u16vstring>, hash<__u32vstring>): Likewise.
* include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
(__u32sso_string, __u32rc_string): Likewise.
* include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
(codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
* include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* src/c++11/codecvt.cc: Likewise.
* src/c++98/locale_init.cc: Likewise.
* src/c++98/localename.cc: Likewise.
From-SVN: r263002
2018-07-26 15:02:01 +01:00
|
|
|
#ifdef _GLIBCXX_USE_C99_STDINT_TR1
|
2008-08-20 19:29:54 +00:00
|
|
|
typedef uint_least32_t int_type;
|
Remove char16_t and char32_t dependency on <stdint.h>
The char16_t and char32_t types are automatically defined by the
compiler and do not depend on support in <stdint.h>. The char_traits
specializations depend on uint_leastNN_t but can be made to work anyway
by using the predefined macros, or as a last resort make_unsigned.
* include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<u16string>, hash<u32string>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
__UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
* include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>)
(codecvt_byname<char16_t, char, mbstate_t>)
(codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
* include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>)
(basic_string<char16_t>, basic_string<char32_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<__u16vstring>, hash<__u32vstring>): Likewise.
* include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
(__u32sso_string, __u32rc_string): Likewise.
* include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
(codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
* include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* src/c++11/codecvt.cc: Likewise.
* src/c++98/locale_init.cc: Likewise.
* src/c++98/localename.cc: Likewise.
From-SVN: r263002
2018-07-26 15:02:01 +01:00
|
|
|
#elif defined __UINT_LEAST32_TYPE__
|
|
|
|
|
typedef __UINT_LEAST32_TYPE__ int_type;
|
|
|
|
|
#else
|
|
|
|
|
typedef make_unsigned<char32_t>::type int_type;
|
|
|
|
|
#endif
|
2008-08-20 19:29:54 +00:00
|
|
|
typedef streamoff off_type;
|
|
|
|
|
typedef u32streampos pos_type;
|
|
|
|
|
typedef mbstate_t state_type;
|
2020-04-17 16:24:49 +01:00
|
|
|
#if __cpp_lib_three_way_comparison
|
|
|
|
|
using comparison_category = strong_ordering;
|
|
|
|
|
#endif
|
2008-08-20 19:29:54 +00:00
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR void
|
2011-05-21 00:05:03 +00:00
|
|
|
assign(char_type& __c1, const char_type& __c2) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ __c1 = __c2; }
|
|
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr bool
|
|
|
|
|
eq(const char_type& __c1, const char_type& __c2) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ return __c1 == __c2; }
|
|
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr bool
|
|
|
|
|
lt(const char_type& __c1, const char_type& __c2) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ return __c1 < __c2; }
|
|
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR int
|
2008-08-20 19:29:54 +00:00
|
|
|
compare(const char_type* __s1, const char_type* __s2, size_t __n)
|
|
|
|
|
{
|
|
|
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
|
|
|
if (lt(__s1[__i], __s2[__i]))
|
|
|
|
|
return -1;
|
|
|
|
|
else if (lt(__s2[__i], __s1[__i]))
|
|
|
|
|
return 1;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR size_t
|
2008-08-20 19:29:54 +00:00
|
|
|
length(const char_type* __s)
|
|
|
|
|
{
|
|
|
|
|
size_t __i = 0;
|
|
|
|
|
while (!eq(__s[__i], char_type()))
|
|
|
|
|
++__i;
|
|
|
|
|
return __i;
|
|
|
|
|
}
|
|
|
|
|
|
2017-04-03 18:15:53 +01:00
|
|
|
static _GLIBCXX17_CONSTEXPR const char_type*
|
2008-08-20 19:29:54 +00:00
|
|
|
find(const char_type* __s, size_t __n, const char_type& __a)
|
|
|
|
|
{
|
|
|
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
|
|
|
if (eq(__s[__i], __a))
|
|
|
|
|
return __s + __i;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2008-08-20 19:29:54 +00:00
|
|
|
move(char_type* __s1, const char_type* __s2, size_t __n)
|
|
|
|
|
{
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::move(__s1, __s2, __n);
|
|
|
|
|
#endif
|
2008-08-20 19:29:54 +00:00
|
|
|
return (static_cast<char_type*>
|
|
|
|
|
(__builtin_memmove(__s1, __s2, __n * sizeof(char_type))));
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2008-08-20 19:29:54 +00:00
|
|
|
copy(char_type* __s1, const char_type* __s2, size_t __n)
|
|
|
|
|
{
|
re PR libstdc++/65049 (Undefined behaviour with std::char_traits<char>)
PR libstdc++/65049
* include/bits/char_traits.h (char_traits<char>::compare,
char_traits<char>::find, char_traits<char>::move,
char_traits<char>::copy, char_traits<char>::assign): Check for zero
length.
(char_traits<wchar_t>::compare, char_traits<wchar_t>::find,
char_traits<wchar_t>::move, char_traits<wchar_t>::copy,
char_traits<wchar_t>::assign): Likewise.
(char_traits<char16_t>::move, char_traits<char16_t>::copy): Likewise.
(char_traits<char32_t>::move, char_traits<char32_t>::copy): Likewise.
* include/ext/pod_char_traits.h (char_traits<character<>>::move,
char_traits<character<>>::copy): Likewise.
* testsuite/21_strings/char_traits/requirements/char/65049.cc: New.
* testsuite/21_strings/char_traits/requirements/char16_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/char32_t/65049.cc:
New.
* testsuite/21_strings/char_traits/requirements/wchar_t/65049.cc:
New.
From-SVN: r227127
2015-08-24 14:43:54 +01:00
|
|
|
if (__n == 0)
|
|
|
|
|
return __s1;
|
2020-04-06 18:30:53 +01:00
|
|
|
#ifdef __cpp_lib_is_constant_evaluated
|
|
|
|
|
if (std::is_constant_evaluated())
|
|
|
|
|
return __gnu_cxx::char_traits<char_type>::copy(__s1, __s2, __n);
|
|
|
|
|
#endif
|
2008-08-20 19:29:54 +00:00
|
|
|
return (static_cast<char_type*>
|
|
|
|
|
(__builtin_memcpy(__s1, __s2, __n * sizeof(char_type))));
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-06 18:30:53 +01:00
|
|
|
static _GLIBCXX20_CONSTEXPR char_type*
|
2008-08-20 19:29:54 +00:00
|
|
|
assign(char_type* __s, size_t __n, char_type __a)
|
|
|
|
|
{
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
for (size_t __i = 0; __i < __n; ++__i)
|
|
|
|
|
assign(__s[__i], __a);
|
2008-08-20 19:29:54 +00:00
|
|
|
return __s;
|
|
|
|
|
}
|
|
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr char_type
|
|
|
|
|
to_char_type(const int_type& __c) noexcept
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{ return char_type(__c); }
|
2008-08-20 19:29:54 +00:00
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr int_type
|
|
|
|
|
to_int_type(const char_type& __c) noexcept
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{ return int_type(__c); }
|
2008-08-20 19:29:54 +00:00
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr bool
|
|
|
|
|
eq_int_type(const int_type& __c1, const int_type& __c2) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ return __c1 == __c2; }
|
|
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr int_type
|
|
|
|
|
eof() noexcept
|
char_traits.h (char_traits<char16_t>:: assign(char_type*, size_t, char_type), [...]): For now, just open-code.
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/char_traits.h (char_traits<char16_t>::
assign(char_type*, size_t, char_type), char_traits<char32_t>::
assign(char_type*, size_t, char_type)): For now, just open-code.
From-SVN: r139367
2008-08-21 01:06:45 +00:00
|
|
|
{ return static_cast<int_type>(-1); }
|
2008-08-20 19:29:54 +00:00
|
|
|
|
2011-05-21 00:05:03 +00:00
|
|
|
static constexpr int_type
|
|
|
|
|
not_eof(const int_type& __c) noexcept
|
2008-08-20 19:29:54 +00:00
|
|
|
{ return eq_int_type(__c, eof()) ? 0 : __c; }
|
|
|
|
|
};
|
|
|
|
|
|
2020-04-17 16:24:49 +01:00
|
|
|
#if __cpp_lib_three_way_comparison
|
|
|
|
|
namespace __detail
|
|
|
|
|
{
|
|
|
|
|
template<typename _ChTraits>
|
|
|
|
|
constexpr auto
|
|
|
|
|
__char_traits_cmp_cat(int __cmp) noexcept
|
|
|
|
|
{
|
|
|
|
|
if constexpr (requires { typename _ChTraits::comparison_category; })
|
|
|
|
|
{
|
|
|
|
|
using _Cat = typename _ChTraits::comparison_category;
|
|
|
|
|
static_assert( !is_void_v<common_comparison_category_t<_Cat>> );
|
|
|
|
|
return static_cast<_Cat>(__cmp <=> 0);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
return static_cast<weak_ordering>(__cmp <=> 0);
|
|
|
|
|
}
|
|
|
|
|
} // namespace __detail
|
|
|
|
|
#endif // C++20
|
|
|
|
|
|
PR libstdc++/36104 part four
2011-01-30 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/36104 part four
* include/bits/c++config (_GLIBCXX_STD): Remove.
(_GLIBCXX_STD_D, _GLIBCXX_PR): Now _GLIBCXX_STD_C.
(_GLIBCXX_P): Now _GLIBCXX_STD_A.
(_GLIBCXX_NAMESPACE_DEBUG, _GLIBCXX_NAMESPACE_PARALLEL,
_GLIBCXX_NAMESPACE_PROFILE, _GLIBCXX_NAMESPACE_VERSION): Remove.
(_GLIBCXX_INLINE_DEBUG, _GLIBCXX_INLINE_PARALLEL,
_GLIBCXX_INLINE_PROFILE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE(X)): Remove.
(_GLIBCXX_END_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y)): Remove.
(_GLIBCXX_END_NESTED_NAMESPACE): Remove.
(_GLIBCXX_BEGIN_NAMESPACE_ALGO): Add.
(_GLIBCXX_END_NAMESPACE_ALGO): Add.
(_GLIBCXX_BEGIN_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_END_NAMESPACE_CONTAINER): Add.
(_GLIBCXX_BEGIN_NAMESPACE_VERSION): Add.
(_GLIBCXX_END_NAMESPACE_VERSION): Add.
(_GLIBCXX_BEGIN_LDBL_NAMESPACE): To _GLIBCXX_BEGIN_NAMESPACE_LDBL.
(_GLIBCXX_END_LDBL_NAMESPACE): To _GLIBCXX_END_NAMESPACE_LDBL.
(_GLIBCXX_VISIBILITY_ATTR): Revert to _GLIBCXX_VISIBILITY.
* include/*: Use new macros for namespace scope.
* config/*: Same.
* src/*: Same.
* src/Makefile.am (sources): Remove debug_list.cc, add
compatibility-debug_list-2.cc.
(parallel_sources): Remove parallel_list.cc, add
compatibility-parallel_list-2.cc.
(compatibility-parallel_list-2.[o,lo]): New rule.
* src/Makefile.in: Regenerate.
* src/debug_list.cc: Remove.
* src/parallel_list.cc: Remove.
* src/compatibility-list-2.cc: New.
* src/compatibility-debug_list-2.cc: New.
* src/compatibility-parallel_list-2.cc: New.
* doc/doxygen/user.cfg.in: Adjust macros.
* testsuite/20_util/auto_ptr/assign_neg.cc: Adjust line numbers, macros.
* testsuite/20_util/declval/requirements/1_neg.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Same.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Same.
* testsuite/20_util/forward/c_neg.cc: Same.
* testsuite/20_util/forward/f_neg.cc: Same.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Same.
* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Same.
* testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Same.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Same.
* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/deque/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/forward_list/capacity/1.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
assign_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/forward_list/requirements/dr438/
insert_neg.cc: Same.
* testsuite/23_containers/list/capacity/29134.cc: Same.
* testsuite/23_containers/list/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/list/requirements/dr438/insert_neg.cc: Same.
* testsuite/23_containers/vector/bool/capacity/29134.cc: Same.
* testsuite/23_containers/vector/bool/modifiers/insert/31370.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_1_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/
constructor_2_neg.cc: Same.
* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc: Same.
* testsuite/25_algorithms/sort/35588.cc: Same.
* testsuite/27_io/ios_base/cons/assign_neg.cc: Same.
* testsuite/27_io/ios_base/cons/copy_neg.cc: Same.
* testsuite/ext/profile/mutex_extensions_neg.cc: Same.
* testsuite/ext/profile/profiler_algos.cc: Same.
* testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Same.
* testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Same.
* testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc: Same.
From-SVN: r169421
2011-01-30 22:39:36 +00:00
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
|
|
|
} // namespace
|
2008-08-20 19:29:54 +00:00
|
|
|
|
Remove char16_t and char32_t dependency on <stdint.h>
The char16_t and char32_t types are automatically defined by the
compiler and do not depend on support in <stdint.h>. The char_traits
specializations depend on uint_leastNN_t but can be made to work anyway
by using the predefined macros, or as a last resort make_unsigned.
* include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<u16string>, hash<u32string>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
_GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
__UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
* include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>)
(codecvt_byname<char16_t, char, mbstate_t>)
(codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
* include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(char_traits<char16_t>, char_traits<char32_t>)
(basic_string<char16_t>, basic_string<char32_t>): Remove dependency
on _GLIBCXX_USE_C99_STDINT_TR1.
* include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(hash<__u16vstring>, hash<__u32vstring>): Likewise.
* include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
(__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
(__u32sso_string, __u32rc_string): Likewise.
* include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
(codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
* include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
(u16string_view, u32string_view, hash<u16string_view>)
(hash<u32string_view>, operator""sv(const char16_t, size_t))
(operator""sv(const char32_t, size_t)): Likewise.
* src/c++11/codecvt.cc: Likewise.
* src/c++98/locale_init.cc: Likewise.
* src/c++98/localename.cc: Likewise.
From-SVN: r263002
2018-07-26 15:02:01 +01:00
|
|
|
#endif // C++11
|
2008-08-20 19:29:54 +00:00
|
|
|
|
|
|
|
|
#endif // _CHAR_TRAITS_H
|