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

       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.

       fmax, fmaxf, fmaxl — determine maximum numeric value of	two  floating-
       point numbers

       #include <math.h>

       double fmax(double x, double y);
       float fmaxf(float x, float y);
       long double fmaxl(long double x, long double y);

       The  functionality described on this reference page is aligned with the
       ISO C standard. Any conflict between the	 requirements  described  here
       and  the	 ISO C	standard is unintentional. This volume of POSIX.1‐2008
       defers to the ISO C standard.

       These functions shall determine the  maximum  numeric  value  of	 their
       arguments.   NaN	 arguments  shall  be  treated as missing data: if one
       argument is a NaN and the other numeric,	 then  these  functions	 shall
       choose the numeric 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.

       No errors are defined.

       The following sections are informative.





       fdim(), fmin()

       The Base Definitions volume of POSIX.1‐2008, <math.h>

       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),	The  Open  Group  Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
       cal and Electronics Engineers,  Inc  and	 The  Open  Group.   (This  is
       POSIX.1-2008  with  the	2013  Technical Corrigendum 1 applied.) 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 .

       Any  typographical  or  formatting  errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files  to  man page format. To report such errors, see https://www.ker‐ .

IEEE/The Open Group		     2013			      FMAX(3P)

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