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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
.TH "FMAX" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
.\" fmax
.SH NAME
fmax, fmaxf, fmaxl \- determine maximum numeric value of two floating-point
numbers
.SH SYNOPSIS
.LP
\fB#include <math.h>
.br
.sp
double fmax(double\fP \fIx\fP\fB, double\fP \fIy\fP\fB);
.br
float fmaxf(float\fP \fIx\fP\fB, float\fP \fIy\fP\fB);
.br
long double fmaxl(long double\fP \fIx\fP\fB, long double\fP \fIy\fP\fB);
.br
\fP
.SH DESCRIPTION
.LP
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.
.SH RETURN VALUE
.LP
Upon successful completion, these functions shall return the maximum
numeric value of their arguments.
.LP
If just one argument is a NaN, the other argument shall be returned.
.LP
If
\fIx\fP and \fIy\fP are NaN, a NaN shall be returned.
.SH ERRORS
.LP
No errors are defined.
.LP
\fIThe following sections are informative.\fP
.SH EXAMPLES
.LP
None.
.SH APPLICATION USAGE
.LP
None.
.SH RATIONALE
.LP
None.
.SH FUTURE DIRECTIONS
.LP
None.
.SH SEE ALSO
.LP
\fIfdim\fP() , \fIfmin\fP() , the Base Definitions volume of
IEEE\ Std\ 1003.1-2001, \fI<math.h>\fP
.SH 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 .
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