Re: [PATCH] Additional features for -fms-extensions

[Andrew Pinski <pinskia at physics dot uc dot edu>]

On Oct 30, 2004, at 12:39 PM, Schönbeck, Andreas wrote:

> /*
>   Results:
>
>   GCC:
>     test2.cxx: In function 'int main()':
>     test2.cxx:xx: warning: cannot pass objects of non-POD type 'Class 
> Point'
>        through '...'; call will abort at runtime
> */
>
> void test(...)
> {
> }
>
> class Point
> {
> public:
>   Point(int x, int y) { this->x = x; this->y = y; }
>   int getX() { return x; }
>   int getY() { return y; }
>
> private:
>   int x;
>   int y;
> };
>
> int main()
> {
>   Point p(1,1);
>
>   test(p);
>
>   return 0;
> }

The reason why this is a warning and will abort at runtime is because it
is undefined by the C++ standard and the ABI cannot handle when the 
deconstructor is called.

-- Pinski