Why does "delete" not delete?

[D. Susman]

Hi,

When I call "clean" as shown below, shouldn't I be getting
segmentation fault due to garbage data? I am compiling with CC and the
output is 5. Does "delete" not delete in this situation or is it no
guarantee that it will print 5 or go wrong?

void clean( int* ptr )
{
delete ptr;
}

//...

int* ptr = new int( 5 );

clean( ptr );

cout << *ptr << endl;

[alasham.said@gmail.com]

Re: Why does &quot;delete&qu ot; not delete?

On Mar 10, 5:11 pm, "D. Susman" <derya.sus...@g mail.comwrote:

Hi,
>
When I call "clean" as shown below, shouldn't I be getting
segmentation fault due to garbage data? I am compiling with CC and the
output is 5. Does "delete" not delete in this situation or is it no
guarantee that it will print 5 or go wrong?
>
void clean( int* ptr )
{
delete ptr;
>
}
>
//...
>
int* ptr = new int( 5 );
>
clean( ptr );
>
cout << *ptr << endl;

It is 'undefined behaviour', so the result may vary from one
implementation to another, and on different runs of the same program.

Regards.