Discard the return value from function - C Function

C examples for Function:Function Return

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Introduction

If there is no assignment specified, the return value is simply discarded.

Consider the following program, which uses the function mul( ):

Demo Code

#include <stdio.h>

int mul(int a, int b);

int main(void)
{
   int x, y, z;/*from  ww  w. j  a  v a  2 s  .c om*/

   x = 10;
   y = 20;
   z = mul(x, y);            /* 1 */
   printf("%d", mul(x, y));   /* 2 */
   mul(x, y);                /* 3 */

   return 0;
}

int mul(int a, int b)
{
   return a*b;
}

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