Crash in a return statement

[u_peerless]

Hi,
I have a qs.

int my_func()
{
  int r;
  // Some statements
  return r;         <<<< Here crash happens
}

int main()
{
 // Some statements
 int y = my_func();
................
}

Now my qs is if in the return statement of my_func() the crash happens, then
1. What does that mean? Which usually causes this type of crash?
2. How to tackle this type of problem?

Regards,
u_peerless

[noops]

Do you ever set r to anything?

[MacGyver]

If a crash happens on a return of a simple integer, then the I would look into stack corruption. This is usually caused by writing to memory beyond the array boundaries.

[iMalc]

You need to post the simplest posible compileable program that produces the problem. It will then be solved very quickly.

[vart]

If a crash happens on a return of a simple integer, then the I would look into stack corruption. This is usually caused by writing to memory beyond the array boundaries.

array that is allocated on stack...
Like

int func()
{
   char buf[2];
   int ret = sprintf(buf, "%s", "Hello world");
   return ret;
}

[robwhit]

If you never assign r to anything, it could be a trap value. When you return it, the program could crash then. Try initializing your variable.