LRINT(3) | Linux Programmer's Manual | LRINT(3) |
NAME
lrint, lrintf, lrintl, llrint, llrintf, llrintl - round to nearest integerSYNOPSIS
#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 );
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
_XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
or
cc -std=c99
DESCRIPTION
These functions round their argument to the nearest integer value, using the current rounding direction (see fesetround(3)).RETURN VALUE
These functions return the rounded integer value.ERRORS
See math_error(7) for information on how to determine whether an error has occurred when calling these functions.The following errors can occur:
- Domain error: x is a NaN or infinite, or the rounded value is too large
- An invalid floating-point exception ( FE_INVALID) is raised.
These functions do not set errno.
VERSIONS
These functions first appeared in glibc in version 2.1.CONFORMING TO
C99, POSIX.1-2001.SEE ALSO
ceil(3), floor(3), lround(3), nearbyint(3), rint(3), round(3)COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.2010-09-20 |