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Re: Fewer mallocs is better, episode #47

From: Henrik Holst via curl-library <>
Date: Thu, 27 Jan 2022 12:47:56 +0100

depends on architecture, AFAIK if you compile for 64-bit Windows then
__fastcall is completely ignored since the MS compiler uses the "Microsoft
x64 calling convention" there regardless of what one types according to


Den tors 27 jan. 2022 kl 12:40 skrev Gisle Vanem via curl-library <>:

> Henrik Holst wrote:
> > strlen() is one clear candidate for some optimizations, often however it
> is declared as __attribute_pure__ so the
> Another candidate for MSVC would be 'cl -Gr'.
> (build for fastcalls internally). But that's not
> possible now due to things like:
> cookie.c(1433): error C2440: 'function':
> cannot convert from 'int (__fastcall *)(const void *,const void *)'
> to '_CoreCrtNonSecureSearchSortCompareFunction'
> It would be interesting to compare the speed of
> a '__cdecl' vs '__fastcall' libcurl.dll.
> --
> --gv
> --
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Received on 2022-01-27