redhat man page for trunc

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

NAME
       trunc, truncf, truncl - round to interger, towards zero

SYNOPSIS
       #include <math.h>

       double trunc(double x);
       float truncf(float x);
       long double truncl(long double x);

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)

								    2001-05-31								  TRUNC(3)