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llrint (3)
LRINT(3) Linux Programmer's Manual LRINT(3)
NAME
lrint, lrintf, lrintl, llrint, llrintf, llrintl - round to nearest
integer
SYNOPSIS
#include <math.h>
long int lrint(double x);
long int lrintf(float x);
long int lrintl(long double x);
long long int llrint(double x);
long long int llrintf(float x);
long long int llrintl(long double x);
Link with -lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
All functions shown above: _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or
cc -std=c99
DESCRIPTION
These functions round their argument to the nearest integer value,
using 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), lround(3), nearbyint(3), rint(3), round(3)
2007-07-26 LRINT(3)
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