title: What does sizeof (function(argument)) return?
body: <p>What will be the output of program</p>
  
  <pre><code>#include &lt;stdio.h&gt;
  
  int fun(char *a){
      printf("%d\n",sizeof(a));
      return 1;
  }
  
  int main(){
      char a[20];
      printf("%d\n",sizeof (fun(a)));
      return 0;
  }
  </code></pre>