Jonathan Wakely ac28c9730c libstdc++: Make CTAD ignore pair(const T1&, const T2&) constructor [PR110853] ... For the pair(T1, T2) explicit deduction type to decay its arguments as intended, we need the pair(const T1&, const T2&) constructor to not be used for CTAD. Otherwise we try to instantiate pair<T1, T2> without decaying, which is ill-formed for function lvalues. Use std::type_identity_t<T1> to make the constructor unusable for an implicit deduction guide. libstdc++-v3/ChangeLog: PR libstdc++/110853 * include/bits/stl_pair.h [C++20] (pair(const T1&, const T2&)): Use std::type_identity_t<T1> for first parameter. * testsuite/20_util/pair/cons/110853.cc: New test. Reviewed-by: Patrick Palka <ppalka@redhat.com> Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com> (cherry picked from commit 0bb0d1d288)		2025-09-04 17:35:10 +01:00
..
algorithmfwd.h	libstdc++: Add deprecated attribute to std::random_shuffle declarations	2023-07-28 18:30:54 +01:00
align.h	Update copyright years.	2023-01-16 11:52:17 +01:00
alloc_traits.h	libstdc++: Fix some -Wunused-parameter warnings	2023-11-09 08:04:31 +00:00
allocated_ptr.h	Update copyright years.	2023-01-16 11:52:17 +01:00
allocator.h	libstdc++: Constrain std::vector default constructor [PR113841]	2024-04-03 11:45:29 +01:00
atomic_base.h	Update copyright years.	2023-01-16 11:52:17 +01:00
atomic_futex.h	libstdc++: Fix std::future::wait_until for subsecond negative times [PR118093]	2025-04-16 20:13:33 +01:00
atomic_timed_wait.h	Update copyright years.	2023-01-16 11:52:17 +01:00
atomic_wait.h	libstdc++: Use <cstdint> instead of <stdint.h> in <bits/atomic_wait.h>	2023-12-09 20:07:21 +00:00
basic_ios.h	libstdc++: Add Doxygen comment for string::resize_and_overwite	2023-02-27 13:42:21 +00:00
basic_ios.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
basic_string.h	libstdc++: std::string move assignment should not use POCCA trait [PR116641]	2024-10-04 10:09:14 +01:00
basic_string.tcc	libstdc++: Fix std::basic_string::resize_and_overwrite	2023-11-09 08:04:31 +00:00
boost_concept_check.h	Update copyright years.	2023-01-16 11:52:17 +01:00
c++0x_warning.h	Update copyright years.	2023-01-16 11:52:17 +01:00
c++config	libstdc++: Downgrade DEBUG to ASSERTIONS when !HOSTED	2023-04-05 18:45:14 +02:00
char_traits.h	libstdc++: Fix std::char_traits<C>::move [PR113200]	2024-01-06 13:39:49 +00:00
charconv.h	Update copyright years.	2023-01-16 11:52:17 +01:00
chrono.h	libstdc++: Make system_clock::to_time_t always_inline [PR99832]	2025-06-11 09:19:15 +01:00
chrono_io.h	libstdc++: Fix localized %c formatting for <chrono> [PR117085]	2024-10-16 20:55:24 +01:00
codecvt.h	Update copyright years.	2023-01-16 11:52:17 +01:00
concept_check.h	Update copyright years.	2023-01-16 11:52:17 +01:00
cow_string.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
cpp_type_traits.h	libstdc++: Fix @headername for bits/cpp_type_traits.h	2024-10-04 10:09:15 +01:00
deque.tcc	libstdc++: Fix std::deque::emplace calling wrong _M_insert_aux [PR90389]	2025-03-31 12:05:16 +01:00
enable_special_members.h	Update copyright years.	2023-01-16 11:52:17 +01:00
erase_if.h	Update copyright years.	2023-01-16 11:52:17 +01:00
forward_list.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
forward_list.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
fs_dir.h	libstdc++: Add missing parts of LWG 3480 for directory iterators [PR117560]	2024-12-07 10:08:51 +00:00
fs_fwd.h	Update copyright years.	2023-01-16 11:52:17 +01:00
fs_ops.h	libstdc++: Fix uses of non-reserved names in headers	2023-02-16 10:24:45 +00:00
fs_path.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
fstream.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
functexcept.h	Update copyright years.	2023-01-16 11:52:17 +01:00
functional_hash.h	Update copyright years.	2023-01-16 11:52:17 +01:00
gslice.h	Update copyright years.	2023-01-16 11:52:17 +01:00
gslice_array.h	libstdc++: Reduce Doxygen output for PDF	2023-04-27 11:35:02 +01:00
hashtable.h	libstdc++: backport inline keyword on std::find	2025-01-10 21:39:36 +00:00
hashtable_policy.h	libstdc++: Do not define _Insert_base::try_emplace before C++17	2024-12-07 10:08:51 +00:00
indirect_array.h	libstdc++: Reduce Doxygen output for PDF	2023-04-27 11:35:02 +01:00
invoke.h	Update copyright years.	2023-01-16 11:52:17 +01:00
ios_base.h	Update copyright years.	2023-01-16 11:52:17 +01:00
istream.tcc	libstdc++: Do not use facets cached in ios for ATL128 build [PR103387]	2023-03-28 23:51:47 +01:00
iterator_concepts.h	libstdc++: Fix ranges::iter_move handling of rvalues [PR106612]	2025-04-16 20:13:34 +01:00
list.tcc	libstdc++: Fix a -Wsign-compare warning in std::list	2024-03-12 11:53:05 +00:00
locale_classes.h	Update copyright years.	2023-01-16 11:52:17 +01:00
locale_classes.tcc	libstdc++: Do not assume existence of char8_t codecvt facet	2023-06-06 14:33:46 +01:00
locale_conv.h	Update copyright years.	2023-01-16 11:52:17 +01:00
locale_facets.h	Update copyright years.	2023-01-16 11:52:17 +01:00
locale_facets.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
locale_facets_nonio.h	Update copyright years.	2023-01-16 11:52:17 +01:00
locale_facets_nonio.tcc	libstdc++: Fix "IEE" typo in comment in std::time_put::do_put	2025-03-31 12:05:18 +01:00
localefwd.h	Update copyright years.	2023-01-16 11:52:17 +01:00
mask_array.h	libstdc++: Reduce Doxygen output for PDF	2023-04-27 11:35:02 +01:00
max_size_type.h	libstdc++: Fix __max_diff_type::operator>>= for negative values	2023-04-28 18:21:17 -04:00
memory_resource.h	libstdc++: Undeprecate std::pmr::polymorphic_allocator::destroy (P2875R4)	2025-04-16 10:02:12 +01:00
memoryfwd.h	Update copyright years.	2023-01-16 11:52:17 +01:00
mofunc_impl.h	libstdc++: Fix typos in doxygen comments	2023-04-27 11:35:04 +01:00
move.h	libstdc++: Simplify preprocessor/namespace nesting in <bits/move.h>	2023-04-28 13:33:20 +01:00
move_only_function.h	libstdc++: Make std::move_only_function never valueless in std::variant	2022-06-27 11:08:16 +01:00
new_allocator.h	libstdc++: Do not use C++11 alignof in C++98 mode [PR104395]	2025-04-16 20:13:33 +01:00
node_handle.h	libstdc++: Destroy allocators in re-inserted container nodes [PR114401]	2024-04-03 11:45:29 +01:00
ostream.tcc	libstdc++: Do not use facets cached in ios for ATL128 build [PR103387]	2023-03-28 23:51:47 +01:00
ostream_insert.h	Update copyright years.	2023-01-16 11:52:17 +01:00
parse_numbers.h	Update copyright years.	2023-01-16 11:52:17 +01:00
postypes.h	Update copyright years.	2023-01-16 11:52:17 +01:00
predefined_ops.h	Update copyright years.	2023-01-16 11:52:17 +01:00
ptr_traits.h	libstdc++: Harmonize <version> and other headers	2023-04-05 18:45:14 +02:00
quoted_string.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
random.h	libstdc++: Improve doxygen docs for <random>	2023-04-28 13:33:31 +01:00
random.tcc	libstdc++: Fix infinite loop in std::binomial_distribution [PR114359]	2024-05-14 10:50:49 +01:00
range_access.h	Update copyright years.	2023-01-16 11:52:17 +01:00
ranges_algo.h	libstdc++: fix a dangling reference crash in ranges::is_permutation [PR118160]	2025-06-06 10:14:12 +01:00
ranges_algobase.h	libstdc++: Fix std::ranges::iota is not included in numeric [PR108760]	2025-04-16 20:13:35 +01:00
ranges_base.h	libstdc++: Implement LWG 3664 changes to ranges::distance	2025-05-27 16:10:13 -04:00
ranges_cmp.h	libstdc++: Implement range_adaptor_closure from P2387R3 [PR108827]	2023-04-18 07:24:21 -04:00
ranges_uninitialized.h	libstdc++: Replace use of __mindist in ranges::uninitialized_xxx algos [PR101587]	2025-04-08 18:11:08 +01:00
ranges_util.h	libstdc++: add missing include in ranges_util.h	2025-04-16 20:13:33 +01:00
refwrap.h	Update copyright years.	2023-01-16 11:52:17 +01:00
regex.h	libstdc++: Define std::sub_match::swap member function (LWG 3204)	2023-04-05 11:37:19 +01:00
regex.tcc	libstdc++: Minor fixes to doxygen comments	2023-04-28 13:33:29 +01:00
regex_automaton.h	libstdc++: Fix uses of non-reserved names in headers	2023-02-16 10:24:45 +00:00
regex_automaton.tcc	libstdc++: Fix uses of non-reserved names in headers	2023-02-16 10:24:45 +00:00
regex_compiler.h	Update copyright years.	2023-01-16 11:52:17 +01:00
regex_compiler.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
regex_constants.h	Update copyright years.	2023-01-16 11:52:17 +01:00
regex_error.h	Update copyright years.	2023-01-16 11:52:17 +01:00
regex_executor.h	Update copyright years.	2023-01-16 11:52:17 +01:00
regex_executor.tcc	libstdc++: Fix some -Wunused-parameter warnings	2023-11-09 08:04:31 +00:00
regex_scanner.h	Update copyright years.	2023-01-16 11:52:17 +01:00
regex_scanner.tcc	libstdc++: Fix uses of non-reserved names in headers	2023-02-16 10:24:45 +00:00
requires_hosted.h	libstdc++: Mark headers that must be hosted as such [PR103626]	2022-10-03 15:43:48 +01:00
semaphore_base.h	Update copyright years.	2023-01-16 11:52:17 +01:00
shared_ptr.h	Update copyright years.	2023-01-16 11:52:17 +01:00
shared_ptr_atomic.h	libstdc++: Fix some -Wmismatched-tags warnings	2023-11-09 08:04:31 +00:00
shared_ptr_base.h	libstdc++: fix compile error when converting std::weak_ptr<T[]>	2025-06-05 18:20:40 +01:00
slice_array.h	libstdc++: Reduce Doxygen output for PDF	2023-04-27 11:35:02 +01:00
specfun.h	Update copyright years.	2023-01-16 11:52:17 +01:00
sstream.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
std_abs.h	libstdc++: Fix std::abs(__float128) for -NaN and -0.0 [PR109758]	2023-06-01 18:11:08 +01:00
std_function.h	Update copyright years.	2023-01-16 11:52:17 +01:00
std_mutex.h	Update copyright years.	2023-01-16 11:52:17 +01:00
std_thread.h	link pthread_join from std::thread ctor	2023-03-03 16:06:44 -03:00
stl_algo.h	libstdc++: Add deprecated attribute to std::random_shuffle declarations	2023-07-28 18:30:54 +01:00
stl_algobase.h	libstdc++: Fix conditions for using memcmp in std::lexicographical_compare_three_way [PR113960]	2024-03-01 10:52:12 +00:00
stl_bvector.h	libstdc++: Fix std::vector<bool>::emplace to forward parameter	2024-12-07 10:08:51 +00:00
stl_construct.h	libstdc++: Qualify calls to std::_Destroy and _Destroy_aux	2023-07-18 10:03:15 +01:00
stl_deque.h	libstdc++: Fix std::deque::emplace calling wrong _M_insert_aux [PR90389]	2025-03-31 12:05:16 +01:00
stl_function.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_heap.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_iterator.h	libstdc++: Fix constraint recursion in basic_const_iterator operator- [PR115046]	2025-05-27 16:38:49 -04:00
stl_iterator_base_funcs.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_iterator_base_types.h	libstdc++: Use alias template for iterator_category [PR110970]	2023-08-11 16:36:41 +01:00
stl_list.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_map.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
stl_multimap.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
stl_multiset.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
stl_numeric.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_pair.h	libstdc++: Make CTAD ignore pair(const T1&, const T2&) constructor [PR110853]	2025-09-04 17:35:10 +01:00
stl_queue.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_raw_storage_iter.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_relops.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_set.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
stl_stack.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_tempbuf.h	Update copyright years.	2023-01-16 11:52:17 +01:00
stl_tree.h	libstdc++: Destroy allocators in re-inserted container nodes [PR114401]	2024-04-03 11:45:29 +01:00
stl_uninitialized.h	libstdc++: Fix some -Wunused-parameter warnings	2023-11-09 08:04:31 +00:00
stl_vector.h	libstdc++: Use constexpr instead of _GLIBCXX20_CONSTEXPR in <vector>	2025-03-31 12:05:17 +01:00
stream_iterator.h	libstdc++: Make std::istream_iterator copy ctor constexpr (LWG 3600)	2023-03-22 17:48:19 +00:00
streambuf.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
streambuf_iterator.h	libstdc++: Fix some -Wunused-parameter warnings	2023-11-09 08:04:31 +00:00
string_view.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
stringfwd.h	Update copyright years.	2023-01-16 11:52:17 +01:00
this_thread_sleep.h	Update copyright years.	2023-01-16 11:52:17 +01:00
uniform_int_dist.h	libstdc++: Improve doxygen docs for <random>	2023-04-28 13:33:31 +01:00
unique_lock.h	Update copyright years.	2023-01-16 11:52:17 +01:00
unique_ptr.h	libstdc++: Harmonize <version> and other headers	2023-04-05 18:45:14 +02:00
unordered_map.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
unordered_set.h	libstdc++: Add @headerfile and @since to doxygen comments [PR40380]	2023-04-28 13:31:52 +01:00
uses_allocator.h	libstdc++: Fix some -Wunused-parameter warnings	2023-11-09 08:04:31 +00:00
uses_allocator_args.h	libstdc++: Fix uses_allocator_construction_args for pair<T&&, U&&> [PR108952]	2023-02-28 09:49:11 +00:00
utility.h	libstdc++: Add static_assert to std::integer_sequence [PR112473]	2023-12-06 09:47:27 +00:00
valarray_after.h	Update copyright years.	2023-01-16 11:52:17 +01:00
valarray_array.h	Update copyright years.	2023-01-16 11:52:17 +01:00
valarray_array.tcc	Update copyright years.	2023-01-16 11:52:17 +01:00
valarray_before.h	Update copyright years.	2023-01-16 11:52:17 +01:00
vector.tcc	libstdc++: Fix -Warray-bounds warning in std::vector<bool> [PR110498]	2025-04-02 12:37:04 +01:00