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TRUNC(3)                   Library Functions Manual                   TRUNC(3)

NAME
     trunc, truncf -- nearest integral value with magnitude less than or equal
     to |x|

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <&lt;math.h>&gt;

     double
     trunc(double x);

     float
     truncf(float x);

DESCRIPTION
     The trunc() and truncf() functions return the nearest integral value with
     magnitude less than or equal to |x|.  They are equivalent to rint() and
     rintf() respectively, in the FP_RZ rounding mode.

SEE ALSO
     ceil(3), floor(3), fpsetround(3), math(3), nextafter(3), rint(3),
     round(3)

STANDARDS
     The trunc() and truncf() functions conform to ISO/IEC 9899:1999
     (``ISO C99'').

NetBSD 6.1.5                    March 31, 2006                    NetBSD 6.1.5