Question

I declare this:

int xstartoftable;
void drawframe();

int main()
{
   int xstartoftable = 80-TLENGTH;
   drawframe();

   return 0
}
void drawframe();
{
   gotoXY(xstartoftable - 1, ystartoftable - 1);
}

The problem is that when I debug, the value of xstartoftable is random, not equal to the one in the main(). The code is over 150 lines, this is just the parts that are needed.

Answer 1

That’s because you redeclare your variable inside main.

int main()
{
   int xstartoftable = 80-TLENGTH; //extra declaration here
   drawframe();

   return 0;
}

Instead just do:

int main()
{
   xstartoftable = 80-TLENGTH; //leave out declaration
   drawframe();

   return 0;
}

This is similar to:

int main()
{
   int x = 0;
   {
      int x = 1;
   }
   printf("%d",x);
   //will print 0
}

On some compilers you might even get an error.