TRUNC(3)

NAME
trunc - truncate to integer value

SYNOPSIS
#include <math.h>
double
trunc(double x);
long double
truncl(long double x);
float
truncf(float x);

DESCRIPTION
The trunc() functions return the integral value nearest to but no larger in magnitude than x.

SPECIAL VALUES
trunc(±0) returns ±0.

trunc(±infinity) returns ±infinity.

SEE ALSO
ceil(3), rint(3), math(3)

STANDARDS
The trunc() functions conform to ISO/IEC 9899:1999(E).