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Jakub Jelinek acdf675933 libstd++: Implement C++23 P2674R1 - A trait for implicit lifetime types 
The following patch attempts to implement the library side of the
C++23 P2674R1 paper.  As mentioned in the paper, since CWG2605
the trait isn't really implementable purely on the library side.

The compiler side has been committed earlier, so this just uses
the new builtin trait on the library side.

2025-10-30  Jakub Jelinek  <jakub@redhat.com>

	* include/bits/version.def (is_implicit_lifetime): New.
	* include/bits/version.h: Regenerate.
	* include/std/type_traits (std::is_implicit_lifetime,
	std::is_implicit_lifetime_v): New trait.
	* src/c++23/std.cc.in (std::is_implicit_lifetime,
	std::is_implicit_lifetime_v): Export.
	* testsuite/20_util/is_implicit_lifetime/version.cc: New test.
	* testsuite/20_util/is_implicit_lifetime/value.cc: New test.
2025-10-30 08:46:26 +01:00
..
.editorconfig
libstdc++: Add .editorconfig files
2024-09-16 10:10:23 +01:00
algorithm
libstdc++: Implement C++23 P1659R3 starts_with and ends_with
2025-06-04 10:29:47 -04:00
any
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2025-01-02 11:59:57 +01:00
array
libstdc++: Add comments to deleted std::swap overloads for LWG 2766
2025-07-14 21:41:37 +01:00
atomic
libstdc++: Handle cv-qualified types in atomic and atomic_ref [PR115402]
2025-10-10 07:38:17 +02:00
barrier
libstdc++: Create new base class of std::barrier<C> for non-dependent code
2025-05-30 10:02:29 +01:00
bit
libstdc++: Use explicit cast to unsigned in std::rotr and std::rotl
2025-06-03 10:53:00 +01:00
bitset
libstdc++: Constrain bitset(const CharT*) constructor [PR121046]
2025-08-28 14:00:48 +01:00
charconv
libstdc++: Treat __int128 as a real integral type [PR96710]
2025-07-11 08:34:13 +01:00
chrono
libstdc++: Restore C++20 <chrono> support for old std::string ABI
2025-09-03 10:49:06 +01:00
codecvt
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2025-01-02 11:59:57 +01:00
complex
libstdc++: Remove implicit type conversions in std::complex
2025-08-28 14:00:48 +01:00
concepts
libstdc++: Use consteval for _S_noexcept() helper functions
2025-09-11 14:38:59 +01:00
condition_variable
libstdc++: Avoid overflow in timeout conversions [PR113327]
2025-10-14 17:26:42 +01:00
coroutine
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2025-01-02 11:59:57 +01:00
debugging
libstdc++: Implement C++26 <debugging> features [PR119670]
2025-08-28 17:47:00 +01:00
deque
libstdc++: Simplify std::erase functions for sequence containers
2025-09-26 11:05:54 +01:00
execution
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2025-01-02 11:59:57 +01:00
expected
libstdc++: Implement LWG4222 'expected' constructor from a single value missing a constraint
2025-09-03 19:12:15 +01:00
filesystem
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2025-01-02 11:59:57 +01:00
flat_map
libstdc++: Fix flat_map::operator[] for const lvalue keys [PR120432]
2025-06-06 09:34:17 -04:00
flat_set
libstdc++: Fix availability of std::erase_if(std::flat_foo) [PR119427]
2025-04-29 08:21:35 -04:00
format
libstdc++: Remove unused local type alias <format>.
2025-10-14 17:40:11 +02:00
forward_list
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
fstream
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2025-01-02 11:59:57 +01:00
functional
libstdc++: Forward arguments for bind_front<f>,bind_back<f>,nttp<f> [PR122022]
2025-10-24 14:41:28 +02:00
future
libstdc++: Improve diagnostics for std::packaged_task invocable checks
2025-04-25 11:47:12 +01:00
generator
libstdc++: Add lvalue overload for generator::yield_value
2025-04-24 22:22:33 +01:00
inplace_vector
libstdc++: std::inplace_vector implementation cleaup
2025-09-30 21:59:16 +02:00
iomanip
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2025-01-02 11:59:57 +01:00
ios
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2025-01-02 11:59:57 +01:00
iosfwd
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2025-01-02 11:59:57 +01:00
iostream
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istream
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iterator
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2025-01-02 11:59:57 +01:00
latch
libstdc++: Optimise std::latch::arrive_and_wait
2025-05-30 10:02:28 +01:00
limits
libstdc++: Fix std::numeric_limits<__float128>::max_digits10 [PR121374]
2025-08-21 10:04:45 +01:00
list
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
locale
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2025-01-02 11:59:57 +01:00
map
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
mdspan
libstdc++: Implement submdspan_mapping_result. [PR110352]
2025-10-08 12:39:44 +02:00
memory
libstdc++: Move start_lifetime_as functions to bits/stl_construct.h [PR106658]
2025-09-22 15:59:21 +02:00
memory_resource
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2025-01-02 11:59:57 +01:00
mutex
libstdc++: Avoid overflow in timeout conversions [PR113327]
2025-10-14 17:26:42 +01:00
numbers
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2025-01-02 11:59:57 +01:00
numeric
libstdc++: Fix <numeric> parallel algos for move-only values [PR117905]
2025-05-06 17:19:26 +01:00
optional
libstdc++: Implement optional<T&> from P2988R12 [PR121748]
2025-10-22 09:53:04 +02:00
ostream
libstdc++: Implement P3107R5 optimizations for std::print [PR121790]
2025-10-10 09:00:22 +02:00
print
libstdc++: Implement P3107R5 optimizations for std::print [PR121790]
2025-10-10 09:00:22 +02:00
queue
libstdc++: Adjust enable_nonlocking_formatter_optimization specializations [PR121790]
2025-10-10 09:23:01 +02:00
random
libstdc++: Implement Philox Engine (PR119794)
2025-09-23 16:38:29 +01:00
ranges
libstdc++: Add missing constraints to views::indices
2025-10-22 09:59:36 +01:00
ratio
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2025-01-02 11:59:57 +01:00
regex
libstdc++: Simplify std::regex_traits::value
2025-10-29 15:43:36 +00:00
scoped_allocator
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2025-01-02 11:59:57 +01:00
semaphore
libstdc++: Use std::conditional_t instead of lambda to select semaphore implementation
2025-06-06 20:15:07 +01:00
set
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
shared_mutex
libstdc++: Avoid overflow in timeout conversions [PR113327]
2025-10-14 17:26:42 +01:00
source_location
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2025-01-02 11:59:57 +01:00
span
libstdc++: Apply LWG4351 to CTAD of span/mdspan.
2025-09-10 12:46:57 +02:00
spanstream
libstdc++: Fix some -Wsign-compare warnings in headers
2025-09-27 21:18:42 +01:00
sstream
libstdc++: Fix whitespace before comments in <sstream>
2025-06-11 10:30:10 +01:00
stack
libstdc++: Adjust enable_nonlocking_formatter_optimization specializations [PR121790]
2025-10-10 09:23:01 +02:00
stacktrace
libstdc++: Improve ostream output for std::stacktrace
2025-10-16 14:59:42 +01:00
stdexcept
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2025-01-02 11:59:57 +01:00
stdfloat
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2025-01-02 11:59:57 +01:00
stop_token
libstdc++: Specialize _Never_valueless_alt for jthread, stop_token and stop_source
2025-08-26 15:21:41 +02:00
streambuf
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2025-01-02 11:59:57 +01:00
string
libstdc++: Avoid _GLIBCXX20_CONSTEXPR in C++ >= 20 code sections
2025-10-01 21:52:44 +02:00
string_view
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2025-01-02 11:59:57 +01:00
syncstream
libstdc++: Remove trailing whitespace in <syncstream>
2025-09-11 10:36:56 +01:00
system_error
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2025-01-02 11:59:57 +01:00
text_encoding
libstdc++: Fix typos in iterator increment for std::text_encoding [PR117520]
2024-11-11 18:57:16 +00:00
thread
libstdc++: Implement P3235R3 optimizations for std::print [PR121790]
2025-10-10 09:13:00 +02:00
tuple
libstdc++: Implement const copy-assignment for tuple<> [PR119721]
2025-10-29 17:13:59 +01:00
type_traits
libstd++: Implement C++23 P2674R1 - A trait for implicit lifetime types
2025-10-30 08:46:26 +01:00
typeindex
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2025-01-02 11:59:57 +01:00
unordered_map
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
unordered_set
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
utility
libstdc++: Implement P1494 and P3641 Partial program correctness [PR119060]
2025-10-18 23:18:02 +01:00
valarray
libstdc++: Make std::valarray support overaligned types [PR108951]
2025-10-27 09:54:55 +00:00
variant
libstdc++: Add comments to deleted std::swap overloads for LWG 2766
2025-07-14 21:41:37 +01:00
vector
libstdc++: Implement P3235R3 optimizations for std::print [PR121790]
2025-10-10 09:13:00 +02:00
version
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2025-01-02 11:59:57 +01:00