1.23 fmax, fmaxf—maximum

Synopsis

#include <math.h>
double fmax(double x, double y);
float fmaxf(float x, float y);

Description
The fmax functions determine the maximum numeric value of their arguments. NaN arguments are treated as missing data: if one argument is a NaN and the other numeric, then the fmax functions choose the numeric value.

Returns
The fmax functions return the maximum numeric value of their arguments.

Portability
ANSI C, POSIX.