On 11 Jul 2013, at 19:52, Tijl Coosemans <t...@coosemans.org> wrote: > GCC doesn't support _Generic yet for -std=c11.
Ugh. Given that they also lack a fine-grained feature check mechanism, they really should not advertise support for a language dialect if they don't support it. > >> +#elif __GNUC_PREREQ__(5, 1) > > GCC 3.1? Ooops, I changed this to 5.1 to test the other code path and forgot to revert it. > Last __fpclassifyd should be __fpclassifyl. Fixed. >> @@ -227,8 +250,6 @@ double expm1(double); >> double fma(double, double, double); >> double hypot(double, double); >> int ilogb(double) __pure2; >> -int (isinf)(double) __pure2; >> -int (isnan)(double) __pure2; > > I think they should stay for the C90 case. That would completely defeat the point of this entire exercise and be redundant unless we aim to support a compiler that only supports C90 and no GNU extensions, in which case you'll hit errors in cdefs.h, long before you get to this point in an include. David
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