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RedHat 9 (Linux i386) - man page for lround (redhat section 3)

LROUND(3)				      Linux Programmer's Manual 				    LROUND(3)

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 x 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 x is too large.
RETURN VALUE
The rounded integer value.
ERRORS
EDOM The magnitude of x is too large and (math_errhandling & MATH_ERRNO) is non-zero.
CONFORMING TO
C99.
SEE ALSO
ceil(3), floor(3), lrint(3), nearbyint(3), rint(3), round(3) 2001-05-31 LROUND(3)


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