Backport from mainline
2017-07-06 Jonathan Wakely <jwakely@redhat.com>
* include/bits/uses_allocator.h (__use_alloc(const _Alloc&&)): Add
deleted overload to prevent dangling references to rvalues.
* include/experimental/memory_resource
(polymorphic_allocator::construct): Do not call __use_alloc with
rvalue arguments.
From-SVN: r250537
Backport from mainline
2017-07-14 Jason Merrill <jason@redhat.com>
Jonathan Wakely <jwakely@redhat.com>
* include/std/variant (variant::variant(_Tp&&)): Constrain to remove
the constructor for empty variants from the candidate functions
during class template argument deduction.
* testsuite/20_util/variant/deduction.cc: New.
From-SVN: r250534
Backport from mainline
2017-04-21 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/80316
* include/std/future (_State_baseV2::_Setter::operator()): Remove
_S_check calls that are done after the pointer to the shared state is
already dereferenced.
(_State_baseV2::_Setter<_Res, void>): Define specialization for void
as partial specialization so it can be defined within the definition
of _State_baseV2.
(_State_baseV2::__setter): Call _S_check.
(_State_baseV2::__setter(promise<void>*)): Add overload for use by
promise<void>::set_value and promise<void>::set_value_at_thread_exit.
(promise<T>, promise<T&>, promise<void>): Make _State a friend.
(_State_baseV2::_Setter<void, void>): Remove explicit specialization.
(promise<void>::set_value, promise<void>::set_value_at_thread_exit):
Use new __setter overload.
* testsuite/30_threads/promise/members/at_thread_exit2.cc: New test.
* testsuite/30_threads/promise/members/set_exception.cc: Test
promise<T&> and promise<void> specializations.
* testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
Test for no_state error condition.
* testsuite/30_threads/promise/members/set_value2.cc: Likewise.
From-SVN: r250126
Backport from mainline
2017-06-21 Ville Voutilainen <ville.voutilainen@gmail.com>
PR libstdc++/80675
PR libstdc++/80940
* include/std/istream:
(__is_convertible_to_basic_istream_test(basic_istream<_Ch, _Up>*)): New.
(__do_is_convertible_to_basic_istream_impl): Likewise.
(__is_convertible_to_basic_istream_impl): Likewise.
(__is_convertible_to_basic_istream): Use the new base.
(__rvalue_istream_type): New.
(operator>>(_Istream&&, _Tp&&)): Use the new helper alias
for the SFINAE check, convert to the helper alias type before
doing the actual extraction.
* include/std/ostream:
(__is_convertible_to_basic_ostream_test(basic_ostream<_Ch, _Up>*)): New.
(__do_is_convertible_to_basic_ostream_impl): Likewise.
(__is_convertible_to_basic_ostream_impl): Likewise.
(__is_convertible_to_basic_ostream): Use the new base.
(__rvalue_ostream_type): New.
(operator<<(_Ostream&&, const _Tp&)): Use the new helper alias
for the SFINAE check, convert to the helper alias type before
doing the actual insertion.
* testsuite/27_io/rvalue_streams-2.cc: Add new tests.
From-SVN: r249471
* doc/xml/manual/appendix_contributing.xml: Link to the list of bad
names, and link to the test docs and note higher DejaGnu version
requirement.
* doc/xml/manual/allocator.xml: Fix ViewCVS URLs.
* doc/xml/manual/mt_allocator.xml: Likewise.
* doc/xml/manual/test.xml: Correct instructions on running tests.
* doc/html/*: Regenerate.
From-SVN: r249250
PR libstdc++/80478
* include/std/functional (_Mem_fn_traits_base): Add specializations
for noexcept member function types.
* testsuite/20_util/function_objects/mem_fn/80478.cc: New test.
From-SVN: r248247
* doc/xml/manual/abi.xml: Rephrase one of the references to the
Itanium C++ ABI.
* doc/xml/manual/test.xml: Document DejaGnu 1.5.3 requirement.
* doc/html/*: Regenerate.
From-SVN: r247003
* include/std/functional (default_searcher, __boyer_moore_array_base)
(__is_std_equal_to, __boyer_moore_base_t, boyer_moore_searcher)
(boyer_moore_horspool_searcher): Remove redundant namespace
qualification.
(default_searcher::operator()): Construct return value early and
advance second member in-place.
(boyer_moore_horspool_searcher::operator()): Increment random access
iterator directly instead of using std::next.
(boyer_moore_searcher::operator()): Fix return value.
* testsuite/20_util/function_objects/searchers.cc: Check both parts
of return values.
From-SVN: r246964
PR libstdc++/80229
* include/bits/shared_ptr_base.h
(__shared_ptr::_M_enable_shared_from_this_with): Change parameters to
non-const and then use remove_cv to get unqualified type.
* testsuite/20_util/enable_shared_from_this/members/const.cc: Don't
cast away constness on object created const.
* testsuite/20_util/shared_ptr/cons/80229.cc: New test.
From-SVN: r246520
* testsuite/23_containers/array/tuple_interface/
tuple_element_debug_neg.cc: Adjust dg-error.
* testsuite/23_containers/list/operations/78389.cc: Fix less-than to
define a valid strict weak ordering.
* testsuite/23_containers/priority_queue/67085.cc: Disable test for
Debug Mode, due to debug checks making extra copies of predicate.
* testsuite/ext/pb_ds/regression/priority_queue_binary_heap-62045.cc:
Likewise.
From-SVN: r246426
2017-03-23 Daniel Kruegler <daniel.kruegler@gmail.com>
Implement LWG 2686, Why is std::hash specialized for error_code,
but not error_condition?
* include/std/system_error (hash<error_condition>): Define for C++17.
* testsuite/20_util/hash/operators/size_t.cc (hash<error_condition>):
Instantiate test for error_condition.
* testsuite/20_util/hash/requirements/explicit_instantiation.cc
(hash<error_condition>): Instantiate hash<error_condition>.
From-SVN: r246424
* doc/xml/manual/appendix_contributing.xml: Convert link to
ansi.org to https.
Update link to the C++ standard at ansi.org.
* doc/xml/faq.xml: Remove information redundant with the above;
instead add a reference.
From-SVN: r246259
* src/c++11/codecvt.cc (range): Add non-type template parameter and
define oerloaded operators for reading and writing code units.
(range<Elem, false>): Define partial specialization for accessing
wide characters in potentially unaligned byte ranges.
(ucs2_span(const char16_t*, const char16_t*, ...))
(ucs4_span(const char16_t*, const char16_t*, ...)): Change parameters
to range<const char16_t, false> in order to avoid unaligned reads.
(__codecvt_utf16_base<char16_t>::do_out)
(__codecvt_utf16_base<char32_t>::do_out)
(__codecvt_utf16_base<wchar_t>::do_out): Use range specialization for
unaligned data to avoid unaligned writes.
(__codecvt_utf16_base<char16_t>::do_in)
(__codecvt_utf16_base<char32_t>::do_in)
(__codecvt_utf16_base<wchar_t>::do_in): Likewise for writes. Return
error if there are unprocessable trailing bytes.
(__codecvt_utf16_base<char16_t>::do_length)
(__codecvt_utf16_base<char32_t>::do_length)
(__codecvt_utf16_base<wchar_t>::do_length): Pass arguments of type
range<const char16_t, false> to span functions.
* testsuite/22_locale/codecvt/codecvt_utf16/misaligned.cc: New test.
From-SVN: r246245
PR libstdc++/80041
* src/c++11/codecvt.cc (__codecvt_utf16_base<wchar_t>::do_out)
(__codecvt_utf16_base<wchar_t>::do_in): Convert char arguments to
char16_t to work with UTF-16 instead of UTF-8.
* testsuite/22_locale/codecvt/codecvt_utf16/80041.cc: New test.
From-SVN: r246202
PR libstdc++/79980
* include/bits/locale_conv.h (__do_str_codecvt): Set __count on
error path.
* src/c++11/codecvt.cc (operator&=, operator|=, operator~): Overloads
for manipulating codecvt_mode values.
(read_utf16_bom): Compare input to BOM constants instead of integral
constants that depend on endianness. Take mode parameter by
reference and adjust it, to distinguish between no BOM present and
UTF-16BE BOM present.
(ucs4_in, ucs2_span, ucs4_span): Adjust calls to read_utf16_bom.
(surrogates): New enumeration type.
(utf16_in, utf16_out): Add surrogates parameter to choose between
UTF-16 and UCS2 behaviour.
(utf16_span, ucs2_span): Use std::min not std::max.
(ucs2_out): Use std::min not std::max. Disallow surrogate pairs.
(ucs2_in): Likewise. Adjust calls to read_utf16_bom.
* testsuite/22_locale/codecvt/codecvt_utf16/79980.cc: New test.
* testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: New test.
From-SVN: r246200
Implement LWG 2857, {variant,optional,any}::emplace should
return the constructed value.
* include/std/any (emplace(_Args&&...)): Change the return type and
return a reference to the constructed value.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* include/std/optional (emplace(_Args&&...)): Likewise.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* include/std/variant (emplace<_Tp>(_Args&&...)): Likewise.
(emplace<_Tp>(initializer_list<_Up>, _Args&&...)): Likewise.
(emplace<_Np>(_Args&&...)): Likewise.
(emplace<_Np>(initializer_list<_Up>, _Args&&...)): Likewise.
* testsuite/20_util/any/assign/emplace.cc: Add tests for
checking the return value of emplace.
* testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
* testsuite/20_util/optional/assignment/6.cc: Add tests for
checking the return value of emplace.
* testsuite/20_util/variant/run.cc: Likewise.
From-SVN: r246182
PR libstdc++/80034
* include/bits/list.tcc (merge(list&&)): Use const for the size_t
in the catch-block.
(merge(list&&, _StrictWeakOrdering)): Likewise.
* testsuite/23_containers/list/operations/80034.cc: New.
From-SVN: r246107
* include/bits/invoke.h (__invoke): Use __invoke_result instead of
result_of, and __is_nothrow_invocable instead of
__is_nothrow_callable.
* include/bits/shared_ptr_base.h (__shared_ptr): Use __is_invocable
instead of __is_callable.
* include/std/functional (invoke): use invoke_result_t instead of
result_of_t and is_nothrow_invocable instead of is_nothrow_callable.
(_Not_fn): Use __invoke_result instead of result_of.
* include/std/type_traits (__result_of_memobj, __result_of_memfun):
Remove partial specializations for reference_wrapper types.
(__result_of_impl): Use __inv_unwrap to strip reference_wrapper.
(__invoke_result): Define replacement for result_of and then use it to
define result_of.
(__is_callable_impl, __is_callable, __is_nothrow_callable): Replace
with __is_invocable_impl, __is_invocable, and __is_nothrow_invocable
respectively.
(invoke_result, invoke_result_t): Define for C++17.
(is_callable, is_nothrow_callable): Replace with is_invocable,
is_invocable_r, is_nothrow_invocable, and is_nothrow_invocable_r.
(is_callable_v, is_nothrow_callable_v): Replace with is_invocable_v,
is_invocable_r_v, is_nothrow_invocable_v, and is_nothrow_invocable_r_v.
* include/std/variant (hash<variant<T...>>): Use is_nothrow_invocable_v
instead of is_nothrow_callable_v.
* testsuite/20_util/function_objects/invoke/59768.cc: Remove unused
main function.
* testsuite/20_util/function_objects/not_fn/1.cc: Use is_invocable
instead of is_callable.
* testsuite/20_util/is_callable/*: Rename directory and adjust tests
to use new traits.
* testsuite/20_util/is_notjrow_callable/*: Likewise.
* testsuite/20_util/optional/hash.cc: Use is_invocable_v instead of
is_callable.
* testsuite/20_util/variant/hash.cc: Likewise.
From-SVN: r246036
libstdc++-v3 configure checks whether old glibc inline definitions
of isnan would conflict with the libstdc++-v3 definitions and
works around them if so. But if g++ 6.x build A is used to build
another g++ 6.x B, the configure step for B will pick up the math.h
installed alongside A instead of the glibc version. configure will
then assume that the workaround isn't necessary, leaving B with a
broken cmath.
isinf already worked around this. This patch extends the same fix
to isnan. (Thanks to George for the fix.)
libstdc++-v3/
2017-03-10 George Lander <george.lander@arm.com>
* acinclude.m4 (glibcxx_cv_obsolete_isnan): Define
_GLIBCXX_INCLUDE_NEXT_C_HEADERS before including math.h.
* configure: Regenerate.
From-SVN: r246025
* doc/xml/manual/debug_mode.xml: Update and simplify note
on link- and run-time coexistence.
Co-Authored-By: François Dumont <frs.dumont@gmail.com>
Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>
From-SVN: r245848
PR libstdc++/79798
* include/std/functional (bind::_Res_type_impl): Fix incorrect use of
result_of that loses top-level cv-qualifiers.
* testsuite/20_util/bind/79798.cc: New test.
From-SVN: r245827
* include/experimental/iterator: Include <iterator>.
* testsuite/experimental/iterator/requirements.cc: Check for contents
of <iterator>.
From-SVN: r245686
PR libstdc++/60936
* src/c++11/snprintf_lite.cc (__concat_size_t): Calculate length
written to buffer, not length remaining in buffer.
From-SVN: r245505
* doc/xml/manual/policy_data_structures.xml: Fix spelling of author's
name.
* doc/xml/manual/policy_data_structures_biblio.xml: Likewise. Remove
broken links to texts that are no longer online.
* doc/xml/manual/profile_mode.xml: Update links to CGO 2009 paper and
LCPC 2006 paper.
* doc/xml/manual/using.xml: Update links to memory model information.
* doc/xml/manual/using_exceptions.xml: Update link to "Appendix E:
Standard-Library Exception Safety".
* doc/html/*: Regenerate.
From-SVN: r245277
Jonathan Wakely
Ville Voutilainen
Uros Bizjak
Rainer Orth
H.J. Lu
Jakub Jelinek
GCC Administrator
Gerald Pfeifer
Markus Trippelsdorf
Daniel Kruegler
François Dumont
Jonathan Wakely
George Lander
Dinka Ranns
Tim Shen