Thread: compile error about destructor

Hello everyone,


When change from __try to try, and __except(GetExceptionCode()) to catch(...), compile can pass.

Compile error and code are,

1>Compiling...
1>main.cpp
1>d:\visual studio 2008\projects\test_exception1\test_exception1\main .cpp(30) : warning C4509: nonstandard extension used: 'main' uses SEH and 'foo1' has destructor
1> d:\visual studio 2008\projects\test_exception1\test_exception1\main .cpp(28) : see declaration of 'foo1'
1>d:\visual studio 2008\projects\test_exception1\test_exception1\main .cpp(35) : error C2712: Cannot use __try in functions that require object unwinding

Code:

#include <iostream>
#include <excpt.h>
#include <windows.h>

using namespace std;

class Foo
{
public:
	Foo()
	{
		cout << "constructing Foo" << endl;
	}

	virtual ~Foo()
	{
		cout << "destrucing Foo" << endl;
	}

};

int main()
{
	int* address = NULL;

	__try{

		Foo foo1;
		(*address) = 1024;
	} __except (GetExceptionCode())
	{
		cout << "access violation caught" << endl;
	}
	return 0;
}

regards,
George

Hi Mats,


But why using try/catch is ok? It is still structured exception catched.

Try to replace the __try to try and replace __except to catch(...).

Originally Posted by matsp

So you can't use structured exception handling with objects that have a destructor.

--
Mats

regards,
George

Thanks Mats,


What is the difference betwen try/catch and __try/__except when dealing with structured exception?

Why __try/__except is more strict?

Originally Posted by matsp

try/catch are able to CATCH a SE, but that doesn't mean that they are the same thing, right?

--
Mats

regards,
George