NAME¶

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

SYNOPSIS¶

#include <math.h>

double fmax(double x, double y);
float fmaxf(float x, float y);
long double fmaxl(long double x, long double y);

Link with -lm.

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

fmax(), fmaxf(), fmaxl(): _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99

DESCRIPTION¶

These functions return the larger value of x and y.

RETURN VALUE¶

These functions return the maximum of x and y.

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

If both arguments are NaN, a NaN is returned.

ERRORS¶

No errors occur.

VERSIONS¶

These functions first appeared in glibc in version 2.1.

CONFORMING TO¶

C99, POSIX.1-2001.

SEE ALSO¶

fmin(3)

COLOPHON¶

This page is part of release 3.22 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.