1#include <math.h>
 2
 3float fminf(float x, float y)
 4{
 5	if (isnan(x))
 6		return y;
 7	if (isnan(y))
 8		return x;
 9	/* handle signed zeros, see C99 Annex F.9.9.2 */
10	if (signbit(x) != signbit(y))
11		return signbit(x) ? x : y;
12	return x < y ? x : y;
13}