ROUND(3M) Mathematical Library Functions ROUND(3M)
NAME
round, roundf, roundl - round to nearest integer value in floating-
point format
SYNOPSIS
c99 [
flag... ]
file...
-lm [
library... ]
#include <math.h>
double round(
double x);
float roundf(
float x);
long double roundl(
long double x);
DESCRIPTION
These functions round their argument to the nearest integer value in
floating-point format, rounding halfway cases away from 0, regardless
of the current rounding direction.
RETURN VALUES
Upon successful completion, these functions return the rounded
integer value.
If
x is NaN, a NaN is returned.
If
x is +-0 or +- Inf,
x is returned.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+----------------------------+-----------------------------+
|Interface Stability | Standard |
+----------------------------+-----------------------------+
|MT-Level | MT-Safe |
+----------------------------+-----------------------------+
SEE ALSO
math.h(3HEAD),
feclearexcept(3M),
fetestexcept(3M),
attributes(7),
standards(7)SunOS 5.11 July 12, 2006 ROUND(3M)
