diff options
Diffstat (limited to 'lib/mlibc/options/ansi/musl-generic-math/fmax.c')
| -rw-r--r-- | lib/mlibc/options/ansi/musl-generic-math/fmax.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/fmax.c b/lib/mlibc/options/ansi/musl-generic-math/fmax.c new file mode 100644 index 0000000..94f0caa --- /dev/null +++ b/lib/mlibc/options/ansi/musl-generic-math/fmax.c @@ -0,0 +1,13 @@ +#include <math.h> + +double fmax(double x, double y) +{ + if (isnan(x)) + return y; + if (isnan(y)) + return x; + /* handle signed zeros, see C99 Annex F.9.9.2 */ + if (signbit(x) != signbit(y)) + return signbit(x) ? y : x; + return x < y ? y : x; +} |