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91ed3248ce26aaaee4d7471aa4edbc07b3f1a90e
gcc/libstdc++-v3/include/std
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Patrick Palka 91ed3248ce libstdc++: Fix flat_map::operator[] for const lvalue keys [PR120432] 
The const lvalue operator[] overload wasn't properly forwarding the key
type to the generic overload, causing a hard error for const keys.

Rather than correcting the forwarded type this patch just makes the
non-template overloads call try_emplace directly instead.  That way we
can remove the non-standard same_as constraint on the generic overload
and match the spec more closely.

	PR libstdc++/120432

libstdc++-v3/ChangeLog:

	* include/std/flat_map (flat_map::operator[]): Make the
	non-template overloads call try_emplace directly.  Remove
	non-standard same_as constraint on the template overload.
	* testsuite/23_containers/flat_map/1.cc (test08): New test.

Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com>
Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
2025-06-06 09:34:17 -04:00
..
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algorithm
libstdc++: Implement C++23 P1659R3 starts_with and ends_with
2025-06-04 10:29:47 -04:00
any
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array
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atomic
libstdc++: constrain std::atomic's default constructor
2025-03-08 19:47:15 +01:00
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++: Use constexpr-if for C++11 and C++14
2025-04-29 10:52:59 +01:00
charconv
libstdc++: Use constexpr-if for C++11 and C++14
2025-04-29 10:52:59 +01:00
chrono
libstdc++: Update tzdata to 2025a
2025-03-12 17:02:12 +00:00
codecvt
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complex
libstdc++: Micro-optimization in std::arg overload for scalars
2025-05-15 16:33:16 +01:00
concepts
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condition_variable
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coroutine
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deque
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
execution
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expected
libstdc++: Fix constraint recursion in std::expected's operator== [PR119714]
2025-05-12 09:15:34 -04:00
filesystem
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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++: Fix std::format thousands separators when sign present [PR120548]
2025-06-05 14:43:48 +01:00
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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functional
libstdc++: Implement C++26 function_ref [PR119126]
2025-05-26 11:25:28 +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
iomanip
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ios
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iosfwd
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iostream
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istream
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iterator
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latch
libstdc++: Optimise std::latch::arrive_and_wait
2025-05-30 10:02:28 +01:00
limits
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list
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
locale
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map
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
mdspan
libstdc++: Fix bug in default ctor of extents.
2025-05-27 11:12:25 +02:00
memory
libstdc++: Implement C++26 std::polymorphic [PR119152]
2025-06-02 13:47:28 +02:00
memory_resource
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mutex
libstdc++: Restore std::scoped_lock for non-gthreads targets [PR120198]
2025-05-12 12:26:53 +01:00
numbers
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numeric
libstdc++: Fix <numeric> parallel algos for move-only values [PR117905]
2025-05-06 17:19:26 +01:00
optional
libstdc++: Improve optional's <=> constraint recursion workaround [PR104606]
2025-02-28 10:15:45 -05:00
ostream
libstdc++: Fix mingw build by using _M_span [PR119970]
2025-04-28 11:03:50 +02:00
print
libstdc++: Fix mingw build by using _M_span [PR119970]
2025-04-28 11:03:50 +02:00
queue
libstdc++: Implement formatters for queue, priority_queue and stack [PR109162]
2025-04-25 13:02:04 +02:00
random
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ranges
libstdc++: Fix some Clang -Wsystem-headers warnings in <ranges>
2025-05-19 10:44:38 +01:00
ratio
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regex
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scoped_allocator
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semaphore
libstdc++: Optimize std::counting_semaphore for futex path
2025-06-06 09:52:31 +01:00
set
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
shared_mutex
libstdc++: Make std::unique_lock self-move-assignable
2025-03-06 16:46:19 +00:00
source_location
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span
libstdc++: Remove redundant std::span destructor
2025-03-06 16:13:30 +00:00
spanstream
libstdc++: Fix uninitialized data in std::basic_spanbuf::seekoff
2024-12-13 13:06:12 +00:00
sstream
Revert "libstdc++: sstream from string_view (P2495R3) [PR119741]"
2025-06-04 23:19:52 -04:00
stack
libstdc++: Implement formatters for queue, priority_queue and stack [PR109162]
2025-04-25 13:02:04 +02:00
stacktrace
libstdc++: Fix outdated comment in <stacktrace>
2025-02-27 22:03:50 +00:00
stdexcept
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stdfloat
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stop_token
libstdc++: Check feature test macro for jthread in <stop_token>
2025-06-03 11:24:15 +01:00
streambuf
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string
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
string_view
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syncstream
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system_error
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text_encoding
libstdc++: Fix typos in iterator increment for std::text_encoding [PR117520]
2024-11-11 18:57:16 +00:00
thread
libstdc++: Constrain formatter for thread::id [PR119918]
2025-04-25 13:02:04 +02:00
tuple
libstdc++: Make operator== for std::tuple convert to bool [PR119545]
2025-03-31 17:12:26 +01:00
type_traits
libstdc++: Use new __is_destructible built-in in <type_traits>
2025-06-03 11:21:02 +01:00
typeindex
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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
Add std::to_underlying to the set of stdlib functions that are always folded
2025-05-14 11:27:38 +03:00
valarray
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variant
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vector
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
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version
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