NAME
nearbyint,
nearbyintf,
nearbyintl,
rint,
rintf,
rintl —
round to integral value in
floating-point format
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
nearbyint(
double
x);
float
nearbyintf(
float
x);
long double
nearbyintl(
long
double x);
double
rint(
double
x);
float
rintf(
float
x);
long double
rintl(
long double
x);
DESCRIPTION
The
rint(),
rintf(), and
rintl() functions return the integral value nearest to
x according to the prevailing rounding mode. These
functions raise an inexact exception when the original argument is not an
exact integer.
The
nearbyint(),
nearbyintf(), and
nearbyintl() functions perform the same operation, except
that they do not raise an inexact exception.
SEE ALSO
abs(3),
ceil(3),
fabs(3),
fenv(3),
floor(3),
lrint(3),
math(3),
round(3)
HISTORY
A
rint() function appeared in
Version 6
AT&T UNIX.