Thread: calling exit() crashes

In my program I have this function:

Code:

void menuTestExit(Node* root) {
	printf("before delete\n");
	delete root;
	printf("after delete\n");
	exit(0);
}

I have to do it this way because I'm using glut. The problem is that this code always prints before delete and after delete, then creates a JIT debugging error (even when I run the executable directly). Is this something I should even be worried about, and if so, how do I fix it?

Originally Posted by sand_man

Are you checking that root points somewhere before deleting it?

Yes. It's a valid pointer. I also tried just commenting out the delete line, but it still gives the same error.

Originally Posted by anonytmouse

Don't use exit in C++

The issue, if I'm understanding correctly, is that destructors don't get called implicitly when exit is called because the stack doesn't unroll, right? This is why I delete the root and kill all the data. I tried rewriting the exit function like this:

Code:

void menuTestExit(Node* root) {
	printf("before delete\n");
	delete root;
	printf("after delete\n");
//	exit(0);
	throw(ExitExc());
}

where ExitExc is just an empty class like this:

Code:

class ExitExc {};

Then I changed the top like this:

Code:

int main() {
//some other stuff
	try {
		glutMainLoop();
	} catch (ExitExc e) {
	}
	return 0;
}

But this gives the same error.