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FMAX(3) Linux Programmer's Manual FMAX(3)

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 || _POSIX_C_SOURCE >= 200112L;
 
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.

ATTRIBUTES

Multithreading (see pthreads(7))

The fmax(), fmaxf(), and fmaxl() functions are thread-safe.

CONFORMING TO

C99, POSIX.1-2001.

SEE ALSO

fmin(3)

COLOPHON

This page is part of release 3.74 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.
2013-09-17