OpenDarwin 7.2.1 - man page for trunc (opendarwin section 3)

TRUNC(3)				     BSD Library Functions Manual				     TRUNC(3)

NAME
     trunc -- truncate to integer value

SYNOPSIS
     #include <math.h>

     double
     trunc(double x);

     float
     truncf(float x);

DESCRIPTION
     The trunc() and truncf() functions return the integral value nearest to but no larger in magnitude than x.

SPECIAL VALUES
     trunc(+-0) returns +-0.

     trunc(+-infinity) returns +-infinity.

SEE ALSO
     ceil(3), ieee(3), rint(3), math(3)

STANDARDS
     The trunc() and truncf() functions conform to ISO/IEC 9899:1999(E).

BSD
						   January 29, 2003						  BSD