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[libc++] P3372R3: constexpr unordered_multiset #128669

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frederick-vs-ja opened this issue Feb 25, 2025 · 0 comments
Open

[libc++] P3372R3: constexpr unordered_multiset #128669

frederick-vs-ja opened this issue Feb 25, 2025 · 0 comments
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c++26 libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.

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Make unordered_multiset constexpr as part of P3372R3.

Note that the constexpr-ness largely requires a user-defined hash functor.

Feature-test macro (also covers constexpr unordered_set):

#define __cpp_lib_constexpr_unordered_set 202502L // also in <unordered_set>
@frederick-vs-ja frederick-vs-ja added c++26 libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi. labels Feb 25, 2025
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c++26 libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.
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