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On 07/14/2016 09:09 AM, Corinna Vinschen wrote: > On Jul 13 15:02, Eric Blake wrote: >> POSIX requires that SSIZE_MAX have the same type as ssize_t, but >> on 32-bit, we were defining it as a long even though ssize_t >> resolves to an int. It also requires that SSIZE_MAX be usable >> via preprocessor #if, so we can't cheat and use a cast. >> >> If this were newlib, I'd have had to hack _intsup.h to probe the >> qualities of size_t (via gcc's __SIZE_TYPE__), similar to how we >> already probe the qualities of int8_t and friends, then cross our >> fingers that ssize_t happens to have the same rank (most systems >> do, but POSIX permits a system where they differ such as size_t >> being long while ssize_t is int). Unfortunately gcc gives us >> neither __SSIZE_TYPE__ nor __SSIZE_MAX__. On the other hand, our >> limits.h is specific to cygwin, we can just shortcut to the >> correct results rather than being generic to all possible ABI. >> >> Signed-off-by: Eric Blake <eblake@redhat.com> >> --- >> winsup/cygwin/include/limits.h | 10 +++++++++- > Looks good, please apply. And I remembered to update the release notes, too. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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