LROUND

NAME

lround, lroundf, lroundl, llround, llroundf, llroundl - round to nearest integer, away from zero

SYNOPSIS

#include <math.h>

long int lround(double x);


long int lroundf(float x);


long int lroundl(long double x);

long long int llround(double x);


long long int llroundf(float x);


long long int llroundl(long double x);

DESCRIPTION

These functions round their argument to the nearest integer value, rounding away from zero, regardless of the current rounding direction. If fIxfP is infinite or NaN, or if the rounded value is outside the range of the return type, the numeric result is unspecified. A domain error may occur if the magnitude of fIxfP is too large.

RETURN VALUE

The rounded integer value.

ERRORS

EDOM: The magnitude of fIxfP is too large and (math_errhandling & MATH_ERRNO) is non-zero.

CONFORMING TO

C99.