The function **int abs(int x);** returns the absolute value of an integer x.

## Function prototype of abs

*int abs(int x);***x**: This is an integer to convert to an absolute value.

## Return value of abs

This function returns absolute value of an integer represented by x.

## C program using abs function

The following program shows the use of abs function to find absolute value of an integer.

#include <stdio.h> #include <stdlib.h> int main(){ int value; printf("Enter a number\n"); scanf("%d", &value); printf("Absolute value of %d = %d\n", value, abs(value)); return 0; }

Output

Enter a number 9 Absolute value of 9 = 9

Enter a number -9 Absolute value of -9 = 9

Enter a number 0 Absolute value of 0 = 0