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P2255R2 Type Traits To Detect References Binding To Temporaries #2534

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StephanTLavavej opened this issue Feb 8, 2022 · 3 comments
Open

P2255R2 Type Traits To Detect References Binding To Temporaries #2534

StephanTLavavej opened this issue Feb 8, 2022 · 3 comments
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compiler Compiler work involved cxx23 C++23 feature
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@StephanTLavavej
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StephanTLavavej commented Feb 8, 2022 •
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P2255R2 Type Traits To Detect References Binding To Temporaries
LWG-3819 reference_meows_from_temporary should not use is_meowible
LWG-4045 tuple can create dangling references from tuple-like

Feature-test macro:

#define __cpp_lib_reference_from_temporary 202202L
@StephanTLavavej StephanTLavavej added the cxx23 C++23 feature label Feb 8, 2022
@StephanTLavavej StephanTLavavej added this to Available in C++23 Features via automation Feb 8, 2022
@StephanTLavavej StephanTLavavej added the compiler Compiler work involved label Feb 8, 2022
@StephanTLavavej
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I've contacted the compiler team about getting support for this.

@StephanTLavavej StephanTLavavej moved this from Available to Blocked in C++23 Features Jul 28, 2022
@StephanTLavavej StephanTLavavej mentioned this issue Feb 12, 2023
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@StephanTLavavej
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  • __reference_constructs_from_temporary has been implemented in Clang 18.
  • __reference_converts_from_temporary is being implemented in Clang.

@StephanTLavavej StephanTLavavej mentioned this issue Mar 23, 2024
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__reference_converts_from_temporary has been implemented in Clang 19 (llvm/llvm-project@2dbe89d).

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