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 ALSOceil(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