mlibc/options/ansi/musl-generic-math/fmaxf.c
Alexander van der Grinten 59e8fd6611 options/ansi: Import math from musl
Not everything of musl's code is compiled yet (i.e. the .ignored-c
files are not) as we need fenv.h first. Our previous math code is
also not deleted yet but not compiled anymore.
2018-03-01 23:20:00 +01:00

14 lines
241 B
C

#include <math.h>
float fmaxf(float x, float y)
{
if (isnan(x))
return y;
if (isnan(y))
return x;
/* handle signed zeroes, see C99 Annex F.9.9.2 */
if (signbit(x) != signbit(y))
return signbit(x) ? y : x;
return x < y ? y : x;
}