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FMAX(3P)                   POSIX Programmer's Manual                  FMAX(3P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the  corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.
NAME
       fmax, fmaxf, fmaxl - determine maximum numeric value 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);

DESCRIPTION
       These  functions  shall  determine  the  maximum numeric value of their
       arguments. NaN arguments shall be treated as missing data: if one argu-
       ment  is a NaN and the other numeric, then these functions shall choose
       the numeric value.
RETURN VALUE
       Upon successful completion, these functions shall  return  the  maximum
       numeric value of their arguments.
       If just one argument is a NaN, the other argument shall be returned.
       If x and y are NaN, a NaN shall be returned.
ERRORS
       No errors are defined.
       The following sections are informative.
EXAMPLES
       None.
APPLICATION USAGE
       None.
RATIONALE
       None.
FUTURE DIRECTIONS
       None.
SEE ALSO
       fdim(),  fmin(),  the  Base Definitions volume of IEEE Std 1003.1-2001,
       <math.h>
COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the  referee document. The original Standard can be obtained online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                  2003                             FMAX(3P)