trunc(3) Mac OS X Manual Page

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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(+-_) 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                                           December 11, 2006                                          BSD

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