As an extension to what the standard requires, this also adds
conditional noexcept-specifiers to the std::to_array functions.
P0325R4 to_array from LFTS with updates
* include/experimental/array (to_array): Qualify call to __to_array.
* include/std/array (__cpp_lib_to_array, to_array): Define for C++20.
* include/std/version (__cpp_lib_to_array): Likewise.
* testsuite/23_containers/array/creation/1.cc: New test.
* testsuite/23_containers/array/creation/2.cc: New test.
* testsuite/23_containers/array/creation/3_neg.cc: New test.
* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
Use zero for dg-error line number.
From-SVN: r274209
This defines the equivalent of C++2a's std::type_identity_t alias but
for use in C++11 and later. This can be used to replace __detail::__idt
in the string_view headers, which previously used common_type_t because
the one argument specialization of common_type_t was simply the identity
transform (which is no longer true).
* include/experimental/string_view (__detail::__idt): Remove.
(operator==, operator!=, operator<, operator>, operator<=, operator>=):
Use __type_identity_t instead of __detail::__idt;
* include/std/string_view (__detail::__idt): Remove.
(operator==, operator!=, operator<, operator>, operator<=, operator>=):
Use __type_identity_t instead of __detail::__idt;
* include/std/type_traits (__type_identity_t): New alias template.
From-SVN: r273442
Fix several bugs in the encoding conversions for filesystem::path that
prevent conversion of Unicode characters outside the Basic Multilingual
Plane, and prevent returning basic_string specializations with
alternative allocator types.
The std::codecvt_utf8 class template is not suitable for UTF-16
conversions because it uses UCS-2 instead. For conversions between UTF-8
and UTF-16 either std::codecvt<C, char, mbstate> or
codecvt_utf8_utf16<C> must be used.
The __str_codecvt_in and __str_codecvt_out utilities do not
return false on a partial conversion (e.g. for invalid or incomplete
Unicode input). Add new helpers that treat partial conversions as
errors, and use them for all filesystem::path conversions.
PR libstdc++/90281 Fix string conversions for filesystem::path
* include/bits/fs_path.h (u8path) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]:
Use codecvt_utf8_utf16 instead of codecvt_utf8. Use
__str_codecvt_in_all to fail for partial conversions and throw on
error.
[!_GLIBCXX_FILESYSTEM_IS_WINDOWS && _GLIBCXX_USE_CHAR8_T]
(path::_Cvt<char8_t>): Add explicit specialization.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_wconvert): Remove
overloads.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_convert): Use
if-constexpr instead of dispatching to _S_wconvert. Use codecvt
instead of codecvt_utf8. Use __str_codecvt_in_all and
__str_codecvt_out_all.
[!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_convert): Use
codecvt instead of codecvt_utf8. Use __str_codecvt_out_all.
(path::_S_str_convert) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use
codecvt_utf8_utf16 instead of codecvt_utf8. Construct return values
with allocator. Use __str_codecvt_out_all. Fallthrough to POSIX code
after converting to UTF-8.
(path::_S_str_convert): Use codecvt instead of codecvt_utf8. Use
__str_codecvt_in_all.
(path::string): Fix initialization of string types with different
allocators.
(path::u8string) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use
codecvt_utf8_utf16 instead of codecvt_utf8. Use __str_codecvt_out_all.
* include/bits/locale_conv.h (__do_str_codecvt): Reorder static and
runtime conditions.
(__str_codecvt_out_all, __str_codecvt_in_all): New functions that
return false for partial conversions.
* include/experimental/bits/fs_path.h (u8path):
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Implement correctly for mingw.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_wconvert): Add
missing handling for char8_t. Use codecvt and codecvt_utf8_utf16
instead of codecvt_utf8. Use __str_codecvt_in_all and
__str_codecvt_out_all.
[!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_convert): Use
codecvt instead of codecvt_utf8. Use __str_codecvt_out_all.
(path::string) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use
codecvt_utf8_utf16 instead of codecvt_utf8. Construct return values
with allocator. Use __str_codecvt_out_all and __str_codecvt_in_all.
(path::string) [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use
__str_codecvt_in_all.
(path::u8string) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use
codecvt_utf8_utf16 instead of codecvt_utf8. Use __str_codecvt_out_all.
* src/c++17/fs_path.cc (path::_S_convert_loc): Use
__str_codecvt_in_all.
* src/filesystem/path.cc (path::_S_convert_loc): Likewise.
* testsuite/27_io/filesystem/path/construct/90281.cc: New test.
* testsuite/27_io/filesystem/path/factory/u8path.cc: New test.
* testsuite/27_io/filesystem/path/native/string.cc: Test with empty
strings and with Unicode characters outside the basic multilingual
plane.
* testsuite/27_io/filesystem/path/native/alloc.cc: New test.
* testsuite/experimental/filesystem/path/construct/90281.cc: New test.
* testsuite/experimental/filesystem/path/factory/u8path.cc: New test.
* testsuite/experimental/filesystem/path/native/alloc.cc: New test.
* testsuite/experimental/filesystem/path/native/string.cc: Test with
empty strings and with Unicode characters outside the basic
multilingual plane.
From-SVN: r272385
PR libstdc++/90634
* include/experimental/bits/fs_path.h (path::path(path&&)): Only call
_M_split_cmpts() for a path with multiple components.
(path::_S_is_dir_sep()): Add missing 'static' keyword to function.
* src/filesystem/path.cc (path::_M_split_cmpts()): Count number of
components and reserve space in vector. Return early when there is
only one component.
* testsuite/27_io/filesystem/path/construct/90634.cc: New test.
* testsuite/experimental/filesystem/path/construct/90634.cc: New test.
From-SVN: r271717
It's possible for the function pointer comparison to fail even though
the type is correct, because the function could be defined multiple
times with different addresses when shared libraries are in use.
Retain the function pointer check for the common case where the check
succeeds, but compare typeinfo (if RTTI is enabled) if the first check
fails.
* include/experimental/any (__any_caster): Use RTTI if comparing
addresses fails, to support non-unique addresses in shared libraries.
* include/std/any (__any_caster): Likewise.
From-SVN: r271557
This corresponds to the fixes done for std::any_cast, but has to be done
without if-constexpr. The dummy specialization of _Manager_internal<_Op>
is used to avoid instantiating the real _Manager_internal<T>::_S_manage
function just to compare its address.
PR libstdc++/90220
* include/experimental/any (__any_caster): Constrain to only be
callable for object types. Use remove_cv_t instead of decay_t.
If the type decays or isn't copy constructible, compare the manager
function to a dummy specialization.
(__any_caster): Add overload constrained for non-object types.
(any::_Manager_internal<_Op>): Add dummy specialization.
* testsuite/experimental/any/misc/any_cast.cc: Test function types
and array types.
From-SVN: r271556
Remove the hardcoded whitelist of allocators expected to return memory
aligned to alignof(max_align_t), because that doesn't work when the
platform's malloc() and GCC's max_align_t do not agree what the largest
fundamental alignment is. It's also sub-optimal for user-defined
allocators that return memory suitable for any fundamental alignment.
Instead use a hardcoded list of alignments that are definitely supported
by the platform malloc, and use a copy of the allocator rebound to a POD
type with the requested alignment. Only allocate an oversized
buffer to use with std::align for alignments larger than any of the
hardcoded values.
For 32-bit Solaris x86 do not include alignof(max_align_t) in the
hardcoded values.
PR libstdc++/77691
* include/experimental/memory_resource: Add system header pragma.
(__resource_adaptor_common::__guaranteed_alignment): Remove.
(__resource_adaptor_common::_Types)
(__resource_adaptor_common::__new_list)
(__resource_adaptor_common::_New_list)
(__resource_adaptor_common::_Alignments)
(__resource_adaptor_common::_Fund_align_types): New utilities for
creating a list of types with fundamental alignments.
(__resource_adaptor_imp::do_allocate): Call new _M_allocate function.
(__resource_adaptor_imp::do_deallocate): Call new _M_deallocate
function.
(__resource_adaptor_imp::_M_allocate): New function that first tries
to use an allocator rebound to a type with a fundamental alignment.
(__resource_adaptor_imp::_M_deallocate): Likewise for deallocation.
* testsuite/experimental/memory_resource/new_delete_resource.cc:
Adjust expected allocation sizes.
* testsuite/experimental/memory_resource/resource_adaptor.cc: Remove
xfail.
From-SVN: r271522
2019-05-14 Nina Dinka Ranns <dinka.ranns@gmail.com>
nonesuch is insufficiently useless (lwg2996)
* include/std/type_traits (struct __nonesuch): Added private base
class to make __nonesuch not an aggregate and removed deleted default
constructor.
* include/bits/stl_pair.h (struct __nonesuch_no_braces): Removed.
(operator=(const pair&)): Use __nonesuch instead of
__nonesuch_no_braces.
(operator=(pair&&)): Likewise
* include/std/tuple (operator=(const tuple&)): Use __nonesuch instead
of __nonesuch_no_braces.
(operator=(tuple&&)): Likewise
* include/experimental/type_traits (struct nonesuch): Added private
base class to make nonesuch not an aggregate and removed deleted
default constructor.
* testsuite/20_util/nonesuch/nonesuch.cc: New.
* testsuite/experimental/type_traits/nonesuch.cc: New.
From-SVN: r271175
Make the filesystem::path constructors SFINAE away for void* arguments,
instead of giving an error due to iterator_traits<void*>::reference.
PR libstdc++/90454.cc path construction from void*
* include/bits/fs_path.h (path::_Path): Use remove_pointer so that
pointers to void are rejected as well as void.
* include/experimental/bits/fs_path.h (path::_Path): Likewise.
* testsuite/27_io/filesystem/path/construct/80762.cc: Also check
pointers to void.
* testsuite/experimental/filesystem/path/construct/80762.cc: Likewise.
From-SVN: r271134
The std::__addressof function is always constexpr, even in C++14, so we
can just use that.
* include/experimental/bits/lfts_config.h: Improve doc markup.
* include/experimental/optional: Improve docs.
(_Has_addressof_mem, _Has_addressof_free, _Has_addressof)
(__constexpr_addressof): Remove.
(optional::operator->()): Use std::__addressof().
* include/std/optional (optional::operator->()): Adjust whitespace.
* testsuite/experimental/optional/constexpr/observers/2.cc: Check
that operator-> is still constexpr with overloaded operator&. Change
to compile-only test.
* testsuite/experimental/optional/constexpr/observers/3.cc: Change to
compile-only test.
From-SVN: r270826
The basic_string_view::pointer and basic_string_view::reference typedefs
are supposed to refer to the non-const value type.
In previous standards having traits_type::char_type different to
value_type was simply undefined, but in the C++2a draft it's ill-formed,
as changed by P1148R0. For std::basic_string and iostreams we might
want to only enforce this conditionally for __cplusplus > 201703L but
for std::basic_string_view we don't have backwards compatibility
concerns. Also add assertions to verify the _CharT argument is a
"char-like" type (non-array, trivial, standard layout type).
Also remove the non-standard basic_string_view::_M_check and
basic_string_view::_M_limit member functions, replacing them with
non-member functions that will still exist even if basic_string_view is
specialized by the program.
* include/experimental/string_view (basic_string_view::pointer)
(basic_string_view::reference): Fix to refer to non-const value_type.
* include/bits/basic_string.h (basic_string): Use __sv_check and
__sv_limit instead of basic_string_view::_M_check and
basic_string_view::_M_limit.
* include/std/string_view (__sv_check, __sv_limit): New
helper functions to replace basic_string_view::_M_check and
basic_string_view::_M_limit.
(basic_string_view): Add static assertions to enforce ill-formed
requirement for traits_type::char_type from P1148R0, and to enforce
required properties of char-like types.
(basic_string_view::pointer, basic_string_view::reference): Fix to
refer to non-const value_type.
(basic_string_view::operator[], basic_string_view::at)
(basic_string_view::front, basic_string_view::back)
(basic_string_view::data): Use const_reference and const_pointer
typedefs for return types.
(basic_string_view::_M_check, basic_string_view::_M_limit): Remove.
(hash<wstring_view>): Fix argument_type typedef.
* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
char/1.cc: Fix expected return type of basic_string_view::data().
* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
wchar_t/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
char/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
wchar_t/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/requirements/traits_neg.cc:
New test.
* testsuite/21_strings/basic_string_view/requirements/typedefs.cc:
Check reference and pointer typedefs.
* testsuite/experimental/string_view/requirements/typedefs.cc:
Likewise.
* testsuite/experimental/string_view/modifiers/remove_prefix/char/1.cc:
Fix expected return type of basic_string_view::data().
* testsuite/experimental/string_view/modifiers/remove_prefix/wchar_t/
1.cc: Likewise.
* testsuite/experimental/string_view/modifiers/remove_suffix/char/1.cc:
Likewise.
* testsuite/experimental/string_view/modifiers/remove_suffix/wchar_t/
1.cc: Likewise.
From-SVN: r270548
Check for availability of POSIX sockatmark before using it.
Rename _S_ntoh overloads that are ambiguous when passed an integral type
that is neither uint16_t nor uint32_t.
PR libstdc++/89460
* configure.ac: Check for sockatmark.
* crossconfig.m4: Check for sockatmark.
* config.h.in: Regenerate.
* configure: Regenerate.
* include/experimental/internet (address_v4::_S_hton): Rename
overloaded functions to _S_hton_16 and _S_ntoh_16.
(address_v4::_S_ntoh): Rename to _S_ntoh_16 and _S_ntoh_32.
(basic_endpoint): Adjust calls to _S_hton and _S_ntoh.
* include/experimental/socket (basic_socket::at_mark): Check
_GLIBCXX_HAVE_SOCKATMARK.
From-SVN: r269588
These calls should have been qualified to avoid ADL anyway, but in C++2a
it becomes essential to qualify the calls in experimental::erase because
std::erase_if is also declared and the calls become ambiguous.
* include/experimental/forward_list (experimental::erase): Qualify
call to erase_if.
* include/experimental/list (experimental::erase): Likewise.
* include/std/forward_list (std::erase): Likewise.
* include/std/list (std::erase): Likewise.
From-SVN: r268356
The AI_NUMERICSERV constant is missing from old Darwin systems, so only
use it if it's supported.
* include/experimental/internet [AI_NUMERICSERV]
(resolver_base::numeric_service): Define conditionally.
* testsuite/experimental/net/internet/resolver/base.cc: Test it
conditionally.
* testsuite/experimental/net/internet/resolver/ops/lookup.cc:
Likewise.
From-SVN: r267809
There are a number of UTF-8 characters in comments which add no value
and can be replaced with ASCII equivalents, or removed entirely for the
section sign (U+00A7).
PR libstdc++/88607
* include/bits/forward_list.h: Replace UTF-8 "ligature fi" character.
* include/debug/forward_list: Likewise.
* include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign"
character.
* include/experimental/chrono: Likewise.
* include/experimental/functional: Likewise.
* include/experimental/ratio: Likewise.
* include/experimental/system_error: Likewise.
* include/experimental/tuple: Likewise.
* include/experimental/type_traits: Likewise.
* include/parallel/workstealing.h: Replace UTF-8 "en dash" character.
* include/parallel/multiseq_selection.h: Likewise.
From-SVN: r267564
Ensure we don't try to instantiate __is_constructible_from<void, void>,
because there are two partial specializations that are equally good
matches.
PR libstdc++/80762
* include/bits/fs_path.h (path::_Path): Use remove_cv_t and is_void.
* include/experimental/bits/fs_path.h (path::_Path): Likewise.
* testsuite/27_io/filesystem/path/construct/80762.cc: New test.
* testsuite/experimental/filesystem/path/construct/80762.cc: New test.
From-SVN: r267056
* include/Makefile.am: Add new headers.
* include/Makefile.in: Regenerate.
* include/experimental/bits/net.h: New header for common
implementation details of Networking TS.
* include/experimental/buffer: New header.
* include/experimental/executor: New header.
* include/experimental/internet: New header.
* include/experimental/io_context: New header.
* include/experimental/net: New header.
* include/experimental/netfwd: New header.
* include/experimental/socket: New header.
* include/experimental/timer: New header.
* testsuite/experimental/net/buffer/arithmetic.cc: New test.
* testsuite/experimental/net/buffer/const.cc: New test.
* testsuite/experimental/net/buffer/creation.cc: New test.
* testsuite/experimental/net/buffer/mutable.cc: New test.
* testsuite/experimental/net/buffer/size.cc: New test.
* testsuite/experimental/net/buffer/traits.cc: New test.
* testsuite/experimental/net/execution_context/use_service.cc: New
test.
* testsuite/experimental/net/headers.cc: New test.
* testsuite/experimental/net/internet/address/v4/comparisons.cc: New
test.
* testsuite/experimental/net/internet/address/v4/cons.cc: New test.
* testsuite/experimental/net/internet/address/v4/creation.cc: New
test.
* testsuite/experimental/net/internet/address/v4/members.cc: New
test.
* testsuite/experimental/net/internet/resolver/base.cc: New test.
* testsuite/experimental/net/internet/resolver/ops/lookup.cc: New
test.
* testsuite/experimental/net/internet/resolver/ops/reverse.cc: New
test.
* testsuite/experimental/net/timer/waitable/cons.cc: New test.
* testsuite/experimental/net/timer/waitable/dest.cc: New test.
* testsuite/experimental/net/timer/waitable/ops.cc: New test.
From-SVN: r265080
It's not safe to assume that malloc(n) returns memory aligned to more
than n, so when relying on the guaranteed alignment of malloc ensure
that the number of bytes allocated is at least as large as the
alignment.
PR libstdc++/77691
* include/experimental/memory_resource (__resource_adaptor_imp): Do
not allocate sizes smaller than alignment when relying on guaranteed
alignment.
* testsuite/experimental/memory_resource/new_delete_resource.cc:
Adjust expected number of bytes allocated for alignof(max_align_t).
From-SVN: r265068
The typedefs in <experimental/regex> and <experimental/string> don't
need to be in the __cxx11 namespace, because they are only aliases and
so will have the same mangled name as the underlying types.
* include/experimental/regex: Remove begin/end macros for namespace.
* include/experimental/string: Likewise.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_forward_list.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_multimap.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_multiset.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_map.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_multimap.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_multiset.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_set.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc:
New test.
From-SVN: r263568
Remove duplicated logic in experimental::pmr::polymorphic_allocator by
calling the __uses_allocator_construct helper.
Fix bugs in std::pmr::polymorphic_allocator with incorrect SFINAE
constraint and incorrect argument order.
* include/bits/uses_allocator.h (__uses_allocator_construct): Qualify
calls to __uses_allocator_construct_impl and __use_alloc.
* include/experimental/memory_resource
(polymorphic_allocator::_M_construct): Remove.
(polymorphic_allocator::construct): Call __uses_allocator_construct.
Qualify calls to __use_alloc.
* include/std/memory_resource (polymorphic_allocator::construct): Fix
type in SFINAE constraint. Use constexpr if instead of tag dispatching
to _S_construct overloads.
(polymorphic_allocator::construct(pair<T1, T2>*, ...)): Fix order of
arguments to _S_construct_p.
(polymorphic_allocator::_S_construct): Remove.
(polymorphic_allocator::_S_construct_p): Return allocators by value
not by reference.
* include/std/scoped_allocator (scoped_allocator_adaptor::construct):
Qualify calls to __use_alloc.
* testsuite/20_util/polymorphic_allocator/construct_pair.cc: New test,
copied from testsuite/20_util/scoped_allocator/construct_pair.cc.
* testsuite/experimental/polymorphic_allocator/1.cc: New test.
* testsuite/experimental/polymorphic_allocator/construct_pair.cc:
New test.
From-SVN: r263566
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
By making the memory_resource base class a template parameter the
__resource_adaptor_imp can be used to adapt an allocator into a
std::pmr::memory_resource instead of experimental::pmr::memory_resource.
* include/experimental/memory_resource: Adjust comments and
whitespace.
(__resource_adaptor_imp): Add second template parameter for type of
memory resource base class.
(memory_resource): Define default constructor, destructor, copy
constructor and copy assignment operator as defaulted.
From-SVN: r262944
PR libstdc++/70966
* include/experimental/memory_resource (__get_default_resource): Use
placement new to create an object with dynamic storage duration.
From-SVN: r262943
pmr::resource_adaptor can avoid allocating an oversized buffer and doing
manual alignment within that buffer when the wrapped allocator is known
to always meet the requested alignment. Specifically, if the allocator
is known to use malloc or new directly, then we can call the allocator
directly for any fundamental alignment.
PR libstdc++/70940
* include/experimental/memory_resource
(__resource_adaptor_common::_AlignMgr::_M_unadjust): Add assertion.
(__resource_adaptor_common::__guaranteed_alignment): New helper to
give maximum alignment an allocator guarantees. Specialize for known
allocators using new and malloc.
(__resource_adaptor_imp::do_allocate): Use __guaranteed_alignment.
(__resource_adaptor_imp::do_deallocate): Likewise.
* testsuite/experimental/memory_resource/new_delete_resource.cc:
Check that new and delete are called with expected sizes.
From-SVN: r262935
The additions to <experimental/random> were added in 2015 but the new
algorithms in <experimental/algorithm> were not. This adds them.
* include/experimental/algorithm (sample, shuffle): Add new overloads
using per-thread random number engine.
* testsuite/experimental/algorithm/sample.cc: Simpify and reduce
dependencies by using __gnu_test::test_container.
* testsuite/experimental/algorithm/sample-2.cc: New.
* testsuite/experimental/algorithm/shuffle.cc: New.
From-SVN: r262024
PR libstdc++/86280
* include/experimental/memory_resource
(__resource_adaptor_common::_AlignMgr::_M_token_size): Use type large
enough for result of left shift.
From-SVN: r261888
PR libstdc++/70940
* include/experimental/memory_resource (__resource_adaptor_common):
New base class.
(__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
pointer from unaligned, and vice versa.
(__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
allocated pointer to meet alignment request.
(__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
original pointer for deallocation.
(__resource_adaptor_imp::do_is_equal): Reformat.
(__resource_adaptor_imp::_S_aligned_size): Remove.
(__resource_adaptor_imp::_S_supported): Remove.
(new_delete_resource): Use __gnu_cxx::new_allocator.
* testsuite/experimental/memory_resource/resource_adaptor.cc: Test
extended alignments and use debug_allocator to check for matching
allocate/deallocate pairs.
From-SVN: r261849
Construct the program-wide resource objects using placement new. This
means they have dynamic storage duration and won't be destroyed during
termination.
PR libstdc++/70966
* include/experimental/memory_resource (__resource_adaptor_imp): Add
static assertions to enforce requirements on pointer types.
(__resource_adaptor_imp::get_allocator()): Add noexcept.
(new_delete_resource, null_memory_resource): Return address of an
object with dynamic storage duration.
(__null_memory_resource): Remove.
* testsuite/experimental/memory_resource/70966.cc: New.
From-SVN: r261818
PR libstdc++/78870 support std::filesystem on Windows
* config.h.in: Regenerate.
* configure: Regenerate.
* configure.ac: Check for link, readlink and symlink.
* include/bits/fs_path.h (path::operator/=(const path&)): Move
definition out of class body.
(path::is_absolute(), path::_M_append(path)): Likewise.
(operator<<(basic_ostream, const path&)): Use std::quoted directly.
(operator>>(basic_istream, path&)): Likewise.
(u8path): Reorder definitions and fix Windows implementation.
(path::is_absolute()): Define inline and fix for Windows.
[!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
Define POSIX version inline.
(path::_M_append(path)): Define inline.
* include/experimental/bits/fs_path.h (path::is_absolute()): Move
definition out of class body.
(operator<<(basic_ostream, const path&)): Fix type of delimiter and
escape characters.
(operator>>(basic_istream, path&)): Likewise.
(path::is_absolute()): Define inline and fix for Windows.
* src/filesystem/dir-common.h (__gnu_posix): New namespace.
(__gnu_posix::char_type, __gnu_posix::DIR, __gnu_posix::dirent)
(__gnu_posix::opendir, __gnu_posix::readdir, __gnu_posix::closedir):
Define as adaptors for Windows functions/types or as
using-declarations for POSIX functions/types.
(_Dir_base, get_file_type): Qualify names to use declarations from
__gnu_posix namespace.
(_Dir_base::is_dor_or_dotdot): New helper functions.
* src/filesystem/dir.cc (_Dir, recursive_directory_iterator): Qualify
names to use declarations from __gnu_posix namespace.
* src/filesystem/ops-common.h (__gnu_posix): New nested namespace.
(__gnu_posix::open, __gnu_posix::close, __gnu_posix::stat_type)
(__gnu_posix::stat, __gnu_posix::lstat, __gnu_posix::mode_t)
(__gnu_posix::chmod, __gnu_posix::mkdir, __gnu_posix::getcwd)
(__gnu_posix::chdir, __gnu_posix::utimbuf, __gnu_posix::utime)
(__gnu_posix::rename, __gnu_posix::truncate, __gnu_posix::char_type):
Define as adaptors for Windows functions/types or as
using-declarations for POSIX functions/types.
(stat_type, do_copy_file): Qualify names to use declarations from
__gnu_posix namespace.
(do_space): Declare new function.
(make_file_type): Only use S_ISLNK if defined.
* src/filesystem/ops.cc (char_ptr, filesystem::canonical): Use
path::value_type not char.
(filesystem::copy, create_dir, filesystem::create_directory): Qualify
names to use declarations from __gnu_posix namespace.
(filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
add implementation for Windows.
(filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
(filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
[!_PC_PATH_MAX]: Don't use pathconf.
[PATH_MAX]: Use if defined.
(filesystem::current_path(const path&, error_code&))
(filesystem::equivalent, do_stat, filesystem::hard_link_count)
(filesystem::last_write_time, filesystem::permissions): Use names
from __gnu_posix.
(filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
(filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
implementation for Windows.
(filesystem::rename, filesystem::resize_file): Use names from
__gnu_posix.
(filesystem::space): Use do_space.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Get absolute path to directory.
(filesystem::status, filesystem::symlink_status): Use names from
__gnu_posix.
(filesystem::temp_directory_path): Add implementation for Windows.
* src/filesystem/path.cc (dot): Define constant.
(path::replace_extension): Use dot.
(path::_M_find_extension): Likewise. Use path::string_type not
std::string.
(path::_M_split_cmpts): Use dot.
(filesystem_error::_M_get_what): Use u8string() not native().
* src/filesystem/std-dir.cc (_Dir, recursive_directory_iterator):
Qualify names to use declarations from __gnu_posix namespace.
* src/filesystem/std-ops.cc (filesystem::absolute(const path&)): Use
correct error_code.
(filesystem::absolute(const path&, error_code&)): Add implementation
for Windows.
(char_ptr, filesystem::canonical): Use path::value_type not char.
(do_copy_file): Use names from __gnu_posix.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Do not use fchmod, fchmodat or
sendfile.
(filesystem::copy, create_dir, filesystem::create_directory): Qualify
names to use declarations from __gnu_posix namespace.
(filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
add implementation for Windows.
(filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
(filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
[!_PC_PATH_MAX]: Don't use pathconf.
[PATH_MAX]: Use if defined.
(filesystem::current_path(const path&, error_code&))
(filesystem::equivalent, do_stat, filesystem::hard_link_count)
(filesystem::last_write_time, filesystem::permissions): Use names
from __gnu_posix.
(filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
(filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
implementation for Windows.
(filesystem::rename, filesystem::resize_file): Use names from
__gnu_posix.
(do_space): Define.
(filesystem::space): Use do_space.
(filesystem::status, filesystem::symlink_status): Use names from
__gnu_posix.
(filesystem::temp_directory_path): Add implementation for Windows.
* src/filesystem/std-path.cc
[_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
Define for Windows.
(dot): Define constant.
(path::replace_extension, is_dot): Use dot.
(path::lexically_normal): Check _M_type instead of calling
non-existent function.
(path::_M_find_extension): Use dot. Use path::string_type not
std::string.
(path::_M_split_cmpts): Use dot.
(filesystem_error::_M_get_what): Use u8string() not native().
* testsuite/27_io/filesystem/iterators/directory_iterator.cc: Do not
use symlinks.
* testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
Likewise.
* testsuite/27_io/filesystem/operations/absolute.cc: Use
__gnu_test::root_path() instead of "/" and add Windows-specific tests.
* testsuite/27_io/filesystem/operations/canonical.cc: Use
path::string() to get narrow string, not path::native().
* testsuite/27_io/filesystem/operations/copy.cc: Construct fstreams
with std::filesystem::path not std::basic_string.
* testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
* testsuite/27_io/filesystem/operations/exists.cc: Use
__gnu_test::root_path() instead of "/".
* testsuite/27_io/filesystem/operations/is_empty.cc: Construct
fstreams with std::filesystem::path not std::basic_string.
* testsuite/27_io/filesystem/operations/last_write_time.cc: Use
path::string() to get narrow string.
* testsuite/27_io/filesystem/operations/space.cc: Check results for
errors, expect sensible values otherwise.
* testsuite/27_io/filesystem/operations/temp_directory_path.cc: Add
helpers for adjusting the environment on Windows.
* testsuite/27_io/filesystem/path/append/path.cc: Test
Windows-specific behaviour.
* testsuite/27_io/filesystem/path/construct/format.cc: Fix creation
of path::string_type objects.
* testsuite/27_io/filesystem/path/construct/locale.cc: Compare native
string to wide string on Windows.
* testsuite/27_io/filesystem/path/decompose/root_directory.cc: Allow
for backslash as root-directory.
* testsuite/27_io/filesystem/path/decompose/stem.cc: Use
path::string() to get narrow string.
* testsuite/27_io/filesystem/path/itr/traversal.cc: Test Windows-style
paths.
* testsuite/27_io/filesystem/path/native/string.cc: Use string_type
not std::string.
* testsuite/27_io/filesystem/path/query/is_absolute.cc: Adjust for
different definintion of absolute paths on Windows.
* testsuite/experimental/filesystem/iterators/directory_iterator.cc:
Do not use symlinks.
* testsuite/experimental/filesystem/operations/absolute.cc: Test
Windows behaviour.
* testsuite/experimental/filesystem/operations/copy.cc: Construct
fstreams with NTCTS not std::basic_string.
* testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
* testsuite/experimental/filesystem/operations/exists.cc: Use
__gnu_test::root_path() instead of "/".
* testsuite/experimental/filesystem/operations/is_empty.cc: Construct
fstreams with NTCTS not std::basic_string.
* testsuite/experimental/filesystem/operations/last_write_time.cc:
Use path::string() to get narrow string.
* testsuite/experimental/filesystem/operations/space.cc: Use
__gnu_test::root_path() instead of "/".
* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
Add helpers for adjusting the environment on Windows.
* testsuite/experimental/filesystem/path/append/path.cc: Use
path::string() to get narrow strings for comparisons.
* testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
* testsuite/experimental/filesystem/path/decompose/root_directory.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
* testsuite/experimental/filesystem/path/native/string.cc: Use
string_type not std::string.
* testsuite/experimental/filesystem/path/query/is_absolute.cc:
Adjust for different definintion of absolute paths on Windows.
* testsuite/util/testsuite_fs.h (__gnu_test::root_path()): New
function.
(__gnu_test::scoped_file): Construct fstreams with NTCTS not
std::basic_string.
From-SVN: r261034
Move duplicated code to new _S_string_from_iter function and fix
constraints to accept iterators with const value type.
* include/bits/fs_path.h (path::__is_encoded_char): Change from class
template to alias template.
(path::__value_type_is_char): Use remove_const_t.
(path:_S_string_from_iter): New helper function.
(path::_S_convert(InputIter, __null_terminated))
(path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
Use _S_string_from_iter.
(path::string<_CharT, _Allocator>(const _Allocator&)): Allow sharing
rep for COW strings.
* include/experimental/bits/fs_path.h (path::__is_encoded_char):
Change from class template to alias template.
(path::__value_type_is_char): Use remove_const.
(path:_S_string_from_iter): New helper function.
(path::_S_convert(InputIter, __null_terminated))
(path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
Use _S_string_from_iter.
* testsuite/27_io/filesystem/path/append/source.cc: Test appending
wide strings.
* testsuite/27_io/filesystem/path/concat/strings.cc: Check for exact
string equality, not path equivalence.
* testsuite/27_io/filesystem/path/construct/format.cc: Check
construction from std::string and std::wstring and input iterators.
* testsuite/27_io/filesystem/path/construct/locale.cc: Check
construction from iterators.
* testsuite/experimental/filesystem/path/concat/strings.cc: Check for
exact string equality, not path equivalence.
* testsuite/experimental/filesystem/path/construct/locale.cc: Check
construction from iterators.
From-SVN: r260628
