在 2026-6-10 21:20, Luca Bacci 写道:
Hello,I want to implement weak interlocked functions (relaxed, acquire, release variants). As explained in https://github.com/mingw-w64/mingw-w64/blob/00349888/mingw-w64-headers/include/psdk_inc/intrin-impl.h#L12<https://github.com/mingw-w64/mingw-w64/blob/00349888007fef589c2604bf60d0ea14c0e2d606/mingw-w64-headers/include/psdk_inc/intrin-impl.h#L12>, interlocked functions come in three forms: 1. As MSVC intrinsics replacements (for example, _InterlockedExchange from intrin.h) 2. As Windows.h inline functions (InterlockedExchange from winnt.h) 3. As library functions I don't understand the need for 3). Can anybody explain the need for library implementations?
There's possibility that some of them might not be inlined.Maybe there's no such possibility; for example, many SSE intrinsics in GCC headers are `gnu_inline` and `always_inline`, but are not defined elsewhere.
-- Best regards, LIU Hao
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