FMAX(3M) Mathematical Library Functions FMAX(3M)

fmax, fmaxf, fmaxl - determine maximum numeric value of two floating-point numbers

c99 [ flag... ] file... -lm [ library... ]
#include <math.h>
double fmax(double x, double y);

float fmaxf(float x, float y);

long double fmaxl(long double x, long double y);

These 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, these functions choose the numeric value.

Upon successful completion, these functions return the maximum numeric value of their arguments.

If just one argument is a NaN, the other argument is returned.

If x and y are NaN, a NaN is returned.

No errors are defined.

See attributes(7) for descriptions of the following attributes:

Interface Stability Standard
MT-Level MT-Safe

math.h(3HEAD), fdim(3M), fmin(3M), attributes(7), standards(7)

July 12, 2006 SunOS 5.11