netbsd man page for trunc

TRUNC(3)						   BSD 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 <math.h>

     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'').

BSD
								  March 31, 2006							       BSD