Exception Handing

What is the output of the following program?

CRITICAL_SECTION g_cs;

int filter(unsigned int code, struct _EXCEPTION_POINTERS *ep)

{

OutputDebugStringA("Inside Filter Function");

if (code == EXCEPTION_ACCESS_VIOLATION)

{

return EXCEPTION_EXECUTE_HANDLER;

}

else

{

return EXCEPTION_CONTINUE_SEARCH;

}

}

int _tmain(int argc, _TCHAR* argv[])

{

__try

{

__try

{

__try

{

EnterCriticalSection(&g_cs);

}

__finally

{

OutputDebugStringA("inner\n");

}

}

__finally

{

OutputDebugStringA("outer\n");

}

}

__except(EXCEPTION_EXECUTE_HANDLER/*filter(GetExceptionCode(), GetExceptionInformation())*/)

{

OutputDebugStringA("Got the exception\n");

}

return 0;

}

Answer:

Inside Filter function

Inner

Outer

Got the exception

Summary:

Whenever exception happens it searches for very first __except irrespective of any number of __finally block in between(like above) and then it executes very first finally block and soon...

Why exception has occurred in above code?

Ans: We have not called InitializeCriticalSection().