在 2019/4/5 下午8:07, Jacek Caban 写道: > On 4/5/19 9:15 AM, Martin Storsjö wrote: > > It would be great to have __forceinline fixed. I've seen a problems in > code using static __forceinline multiple times. I also recall that > attempts to change that had their problems, so it's more tricky than it > seems (if possible). >
The `extern` specifier is required in the case of C (but is not in C++) because plain `inline` is not the same thing with `extern inline` [1]. When compiled as C++, `extern` has no effect on an `inline` function. If the entire function body is inlined then no external definition is emitted; otherwise a weak definition is emitted, so taking the address of an inline function in all translate units returns the same value, and no multiple definition errors may occur. I haven't heard of such a thing in C89 mode; it could be achieved by using the `weak` or `selectany` attribute with C99 `extern inline` semantics, anyway. [1] https://en.cppreference.com/w/c/language/inline > > How about doing things in msvc ucrt compatible way? Like the patch I > attached as an example (not yet tested)? > > > Jacek > > > -- Best regards, LH_Mouse
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