C <math.h> - trunc() Function
The C <math.h> trunc() function is used to round the given number towards zero. It returns the nearest integral value with absolute value less than the argument.
Syntax
double trunc (double x); float truncf (float x); long double truncl (long double x);
Parameters
x |
Specify a number. |
Return Value
Returns the nearest integral value with absolute value less than the argument.
Example:
In the example below, trunc() function returns the nearest integral value with absolute value less than the argument.
#include <stdio.h>
#include <math.h>
int main (){
printf("%lf\n", trunc(2.5));
printf("%lf\n", trunc(5.78));
printf("%lf\n", trunc(-3.5));
printf("%lf\n", trunc(-10.33));
return 0;
}
The output of the above code will be:
2.000000 5.000000 -3.000000 -10.000000
❮ C <math.h> Library
