Question

#include<stdio.h>
#include<conio.h>
int main (void)
 {
  int a,b,c,d;
  clrscr();
  a=3;
  b=5;
  c=a,b;
  d=(a,b);
  printf("c=%d",c);
  printf("d=%d",d);
  getch();
 }

I am getting the output as
c=3d=5
Can anyone please explain me that how am i getting this output?

Answer 1

The question revolves mainly around the statements

c=a,b;
d=(a,b);

The = operator has lower precendence than the , operator, so the first statement means:

(c=a),b;

The , operator returns the value of the second operand, so the second statement means:

a,(d=b);