fmax man page

#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():

These functions return the larger value of x and y.

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.

No errors occur.

These functions first appeared in glibc in version 2.1.

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

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

fdim(3), fmin(3)

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fdim(3), fmin(3).

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