Linux / Unix Command: round

Command Library

NAME

round, roundf, roundl - round to nearest integer, away from zero  

SYNOPSIS

#include <math.h>

double round(double x);


float roundf(float x);


long double roundl(long double x);

 

DESCRIPTION

These functions round x to the nearest integer, but round halfway cases away from zero (regardless of the current rounding direction), instead of to the nearest even integer like rint().  

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), lround(3), nearbyint(3), rint(3), trunc(3)

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Important: Use the man command (% man) to see how a command is used on your particular computer.

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