'\" te
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.TH nearbyint 3M "12 Jul 2006" "SunOS 5.11" "Mathematical Library Functions"
.SH NAME
nearbyint, nearbyintf, nearbyintl \- floating-point rounding functions
.SH SYNOPSIS
.LP
.nf
c99 [ \fIflag\fR... ] \fIfile\fR... \fB-lm\fR [ \fIlibrary\fR... ]
#include <math.h>

\fBdouble\fR \fBnearbyint\fR(\fBdouble\fR \fIx\fR);
.fi

.LP
.nf
\fBfloat\fR \fBnearbyintf\fR(\fBfloat\fR \fIx\fR);
.fi

.LP
.nf
\fBlong double\fR \fBnearbyintl\fR(\fBlong double\fR \fIx\fR);
.fi

.SH DESCRIPTION
.sp
.LP
These functions round their argument to an integer value in floating-point
format, using the current rounding direction and without raising the inexact
floating-point exception.
.SH RETURN VALUES
.sp
.LP
Upon successful completion, these functions return the rounded integer value.
.sp
.LP
If \fIx\fR is NaN, a NaN is returned.
.sp
.LP
If \fIx\fR is \(+-0, \(+-0 is returned.
.sp
.LP
If \fIx\fR is \(+-Inf, \fIx\fR is returned.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityStandard
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBfeclearexcept\fR(3M), \fBfetestexcept\fR(3M), \fBmath.h\fR(3HEAD),
\fBattributes\fR(5), \fBstandards\fR(5)