fmax - Man Page

determine maximum of two floating-point numbers

Library

Math library (libm, -lm)

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);

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

fmax(), fmaxf(), fmaxl():

    _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L

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

For an explanation of the terms used in this section, see attributes(7).

InterfaceAttributeValue
fmax(), fmaxf(), fmaxl()Thread safetyMT-Safe

Standards

C99, POSIX.1-2001, POSIX.1-2008.

See Also

fdim(3), fmin(3)

Referenced By

fdim(3), fmin(3), MAX(3).

The man pages fmaxf(3) and fmaxl(3) are aliases of fmax(3).

2022-10-09 Linux man-pages 6.01