Linux / Unix Command: nearbyint

Command Library

NAME

nearbyint, nearbyintf, nearbyintl, rint, rintf, rintl - round to nearest integer  

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 nearbyint functions round their argument to an integer value in floating point format, using the current rounding direction and without raising the inexact exception.

The rint functions do the same, but will raise the inexact exception when the result differs in value from the argument.  

RETURN VALUE

The rounded integer value. If x is integral or infinite, x itself is returned.  

ERRORS

No errors other than EDOM and ERANGE can occur. If x is NaN, then NaN is returned and errno may be set to EDOM.  

SEE ALSO

ceil(3), floor(3), lrint(3), nearbyint(3), round(3), trunc(3)

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