nearbyint(3M) Mathematical Library Functions nearbyint(3M)NAME
nearbyint, nearbyintf, nearbyintl - floating-point rounding functions
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <math.h>
double nearbyint(double x);
float nearbyintf(float x);
long double nearbyintl(long double x);
DESCRIPTION
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.
RETURN VALUES
Upon successful completion, these functions return the rounded integer
value.
If x is NaN, a NaN is returned.
If x is ±0, ±0 is returned.
If x is ±Inf, x is returned.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
├─────────────────────────────┼─────────────────────────────┤
│Standard │See standards(5). │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOfeclearexcept(3M), fetestexcept(3M), math.h(3HEAD), attributes(5),
standards(5)SunOS 5.11 12 Jul 2006 nearbyint(3M)