User login |
truncl (3)
TRUNC(3) Linux Programmer's Manual TRUNC(3)
NAME
trunc, truncf, truncl - round to integer, towards zero
SYNOPSIS
#include <math.h>
double trunc(double x);
float truncf(float x);
long double truncl(long double x);
Link with -lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
trunc(), truncf(), truncl(): _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or
cc -std=c99
DESCRIPTION
These functions round x to the nearest integer not larger in absolute
value.
RETURN VALUE
The rounded integer value. If x is integral, infinite or NaN, x itself
is returned.
ERRORS
None.
CONFORMING TO
C99.
SEE ALSO
ceil(3), floor(3), lrint(3), nearbyint(3), rint(3), round(3)
2007-07-26 TRUNC(3)
|