github.com/afumu/libc@v0.0.6/musl/src/math/fminf.c (about)

     1  #include <math.h>
     2  
     3  float 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  }