loop question

[Draco]

This simple loop I made is supposed to print two columns down the screen, and then it stops. When I run it by itself in this test program, the loop never exits. It looks fine to me, I'm lost.

[

]
main()
{
  int yval=8;
  clrscr();
   while(yval<21)
     {
     gotoxy(30,yval);
     printf("|");
     gotoxy(50,yval);
     printf("|");
     yval=+2;
   }
}
[

]

[sean345]

> main()
int main()

> yval=+2;
This should be

yval +=2

Add a return statement at the end of function main.

- Sean