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[libc++] P2255R2: Implement type traits #129049

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Zingam opened this issue Feb 27, 2025 · 0 comments · Fixed by #128649
Closed
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[libc++] P2255R2: Implement type traits #129049

Zingam opened this issue Feb 27, 2025 · 0 comments · Fixed by #128649
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c++23 libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.

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Zingam commented Feb 27, 2025 •
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@llvmbot llvmbot added the libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi. label Feb 27, 2025
@Zingam Zingam mentioned this issue Feb 27, 2025
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@Zingam Zingam self-assigned this Mar 8, 2025
philnik777 pushed a commit that referenced this issue Mar 8, 2025
@H-G-Hristov @Zingam
[libc++][type_traits] Implements "A type trait to detect reference bi…
6d9dfd7 
…nding to temporary" (#128649)

Implements partially: [P2255R2: A type trait to detect reference binding
to temporary](https://wg21.link/P2255R2)
Issue: #105180

https://eel.is/c++draft/meta.type.synop
https://eel.is/c++draft/meta.unary.prop

Implented type traits:
- [x] `reference_constructs_from_temporary`
- [x] `reference_converts_from_temporary`

Closes #129049

Minor drive-by tweak to `std::is_implicit_lifetime` tests.

---------

Co-authored-by: Hristo Hristov <[email protected]>
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