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This document is a Mac OS X manual page. Manual pages are a command-line technology for providing documentation. You can view these manual pages locally using the man(1) command. These manual pages come from many different sources, and thus, have a variety of writing styles. For more information about the manual page format, see the manual page for manpages(5). |
TRUNC(3) BSD Library Functions Manual TRUNC(3)
NAME
trunc -- truncate to integer value
SYNOPSIS
#include <math.h>
double
trunc(double x);
long double
truncl(long double x);
float
truncf(float x);
DESCRIPTION
The trunc() 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), rint(3), math(3)
STANDARDS
The trunc() functions conform to ISO/IEC 9899:1999(E).
BSD January 29, 2003 BSD
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