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
