abs Function

Calculates the absolute value.

Include

<stdlib.h>

Prototype

int abs(int i);

Argument

i

integer value

Return Value

Returns the absolute value of i.

Remarks

A negative number is returned as positive; a positive number is unchanged.

Example

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
  int i;

  i = 12;
  printf("The absolute value of  %d is  %d\n", i, abs(i));

  i = -2;
  printf("The absolute value of  %d is   %d\n", i, abs(i));

  i = 0;
  printf("The absolute value of   %d is   %d\n", i, abs(i));
}

Example Output

The absolute value of  12 is  12
The absolute value of  -2 is   2
The absolute value of   0 is   0