Comma operator : Comma Operator « Operator « C Tutorial

1. C Tutorial
2. Operator
3. Comma Operator

You can combine multiple expressions in a single expression using the comma operator.

#include<stdio.h>

main(){
  int i,j,k;
  k = (i = 4, j = 5);
  printf("k = %d",k);
}

k = 5