<string>: Fix handling for char_traits<unicorn>
#4951
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AlexGuteniev
approved these changes
Sep 12, 2024
tests/std/tests/GH_004930_char_traits_user_specialization/test.cpp
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tests/std/tests/GH_004930_char_traits_user_specialization/test.cpp
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StephanTLavavej
approved these changes
Sep 19, 2024
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I'm mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed. |
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Fixes #4930. Ideally, when
Tis an implementation-controlled type, special handling should be enabled forchar_traits<T>to reject more unintended element types. But the complete work is impractical, so this PR restricts the handling to arithmetic types andnullptr_t.Drive-by changes:
static_assertmessage to mentionchar8_t.TRANSITIONcomments in<regex>, but test coverage is currently missing (which would be complicated and weird).