HP-UX Reference (11i v1 05/09) - 3 Library Functions A-M (vol 6)

fmax(3M) fmax(3M)

NAME

fmax() - maximum value function

SYNOPSIS

#include <math.h>

double fmax(double x, double y);

DESCRIPTION

The fmax() function determines the maximum numeric value of its arguments.

The ISO/ANSI C committee has approved the

fmax() function for inclusion in the C9X draft standard.

To use this function, compile either with the default

-Ae option or with the -Aa and -D_HPUX_SOURCE

options. Make sure your program includes <

math.h>. Link in the math library by specifying -lm on the

compiler or linker command line.

RETURN VALUE

The

fmax() function returns the maximum numeric value of its arguments.

If one argument is a NaN and the other is numeric, fmax() returns the numeric argument.

If both arguments are NaNs, fmax() returns one of the arguments.

ERRORS

No errors are deﬁned.