Gaming Visual Studio Problem (C)

Raiser · Dec 14, 2011

I need some help with an issue I'm having.
I'm currently coding something via Visual Studio C++ 2010 Express where I have something similar to:

Code:

// headers included
// bunch of declarations and initializations
int close = 0;

int _tmain(int argc, _TCHAR* argv[])
{
// code unrelated to 'close'
do
{
int menuInput = _getch();
switch(menuInput)
{
// bunch of code also unrelated to 'close'
case 'x':
close = 1;
break;
}while(close == 0);
return 0;
}

Now for my problem... I will run the program, but it will eventually unexpectedly end (Press any key to continue...).
At first I was completely puzzled as 'close' should have been 0 the entire time. I stuck a:

Code:

printf("%d\n",close);

directly above

Code:

return 0;

And I find that 'close' ends up being anywhere between 20-23 which is the exact same as another variable of a completely different name!
Using CTRL+F "close", the only results are whatever you see above. It is not used or changed in any way in the "bunch of code".

I'm not necessarily looking for a direct fix (I want to avoid pasting all of my code), but does anyone know a potential cause / explanation for this?

Thanks.

junkerde · Dec 14, 2011

damn tahts some technical looking shit. sorry.

Snailface · Dec 14, 2011

I can't figure out what is causing the problem with such a small snippet of code but replacing
}while(close == 0);
with
}while(close != 1);

may do the trick.

@OP y/welcome

(I'm wondering if he has a buffer overflow somewhere. oh well that little patch should be good enough)

Raiser · Dec 14, 2011

Snailface said:
I can't figure out what is causing the problem with such a small snippet of code but replacing
}while(close == 0);
with
}while(close != 1);

may do the trick.

Thanks, Snailface! This did the trick (hopefully). I can't believe I didn't think of such an obvious change. I still am wondering how 'close' even changed...

I realize it's not much to look at, but I have double and triple-checked- 'close' is not manipulated in any way in the entire program except for what I mentioned.

Thanks again!

SanGor · Dec 14, 2011

You should really post the whole code and not such mess where half the code is missing.

Normmatt · Dec 14, 2011

You should change your code to work on the principal of run until this variable is not true

Code:

bool running = true;
while(running)
{
int menuInput = _getch();
switch(menuInput)
{
// bunch of code also unrelated to 'close'
case 'x':
running = false;
break;
}
}

Gaming Visual Studio Problem (C)

I am mad scientist.

Banned!

My frothing demand for 3ds homebrew is increasing

I am mad scientist.

Witchhunter

Former AKAIO Programmer

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