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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():
           _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).
       +-------------------------+---------------+---------+
       |Interface                | Attribute     | Value   |
       +-------------------------+---------------+---------+
       |fmax(), fmaxf(), fmaxl() | Thread safety | MT-Safe |
       +-------------------------+---------------+---------+
CONFORMING TO
       C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO
       fdim(3), fmin(3)
COLOPHON
       This  page  is  part of release 4.15 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
       https://www.kernel.org/doc/man-pages/.
                                  2017-09-15                           FMAX(3)