Yes!! You are right... On DEV C++ V4.9.9.2. compiler Pound sign has ascii value of 156 and gcc has 163.
So Now you can try this.

Code:
#include<stdio.h>
#include<conio.h>

int main()
{
   char ch=156;
   printf("%c",ch); 
   getch(); 
   return 0;
}