NAME

trunc, truncf, truncl — nearest integral value with magnitude less than or equal to |x|

SYNOPSIS

Math Library (libm, -lm)
#include <math.h>

double
trunc(double x);

float
truncf(float x);

long double
truncl(long double x);

DESCRIPTION

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

SEE ALSO

ceil(3), fesetround(3), floor(3), nextafter(3), rint(3), round(3)

STANDARDS

The trunc(), truncf() and truncl() functions conform to ISO/IEC 9899:1999 (“ISO C99”).