Originální popis anglicky:
trunc, truncf, truncl - round to integer, towards zero
Návod, kniha: Linux Programmer's Manual
#include <math.h>
double trunc(double x);
float truncf(float x);
long double truncl(long double x);
Link with -lm.
These functions round
x to the nearest integer not larger in absolute
value.
The rounded integer value. If
x is integral, infinite or NaN,
x
itself is returned.
None.
C99.
ceil(3),
floor(3),
lrint(3),
nearbyint(3),
rint(3),
round(3)
