Don't rely on SSO zeroing in basic_string::_Construct
#3235
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... or we will have horrible failures when linking with object files from 17.3. `_Construct` must null-terminate the string itself on all control paths. I've added a comment to the `_String_val::_Bxty` constructor directing us not to rely on the semantic changes introduced in 17.4 to avoid regressing.
StephanTLavavej
approved these changes
Nov 17, 2022
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Thanks, looks good to me. This also makes the small case use consistent patterns with the large case below. |
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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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Thanks for investigating and fixing this ABI break! 🙀 🕵️ 😻 |
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... or we will have horrible failures when linking with object files from 17.3.
_Constructmust null-terminate the string itself on all control paths. I've added a comment to the_String_val::_Bxtyconstructor directing us not to rely on the semantic changes introduced in 17.4 to avoid regressing.