make extern "C" functions explicitly noexcept
#4106
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Excludes (with explanatory comment) the redeclarations of `locale.h` functions in `xlocinfo` to avoid clashing with the primary declarations. Drive-by in `mutex.cpp`: Indicate that `_Thrd_abort` is exported for ABI only; there are no callers outside this file.
StephanTLavavej
requested changes
Oct 19, 2023
StephanTLavavej
approved these changes
Oct 24, 2023
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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 this big consistency improvement! 🎉 ✅ 😻 |
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Functions declared
extern "C"are implicitlynoexcept(true)when compiling with/EHc, and implicitlynoexcept(false)when compiling without. To ensure consistency regardless of the compiler's command line options, allextern "C"functions should have explicit noexcept-specifiers.This change excludes (with explanatory comment) the redeclarations of
locale.hfunctions inxlocinfoto avoid clashing with the primary declarations in the UCRT.Drive-by:
mutex.cpp, indicate that_Thrd_abortis exported for ABI only; there are no callers outside this file.winapisupp.cpp, the dynamic initializerinitialize_pointersnever throws exceptions and should therefore benoexcept.vector_algorithms.cpp, the APIs arenoexceptso the helpers must be as well. Add annotations to make that contractual obligation explicit.