Re: Is this valid and moral C++?

"Filimon Roukoutakis" <filimon@phys.uoa.gr> wrote in message
news:etk69j$c56$1@cernne03.cern.ch...


By your replies to the other posts, I take it you meant

void g() {
   vec push_back( new Object );
   f( vec[size() - 1] );
}

f( *(vec.end() - 1) );
may also work.

Your question seems to be, g made a new object, can f access that object?
The answer is yes. It would be the same if you did something like:

Object* MyObject = NULL;

f( Object*& obj )
 {
   // ...
}

Object* g
{
   return new Object;
}

int main()
{
    MyObject = g();
    f( MyObject );
   delete( MyObject );
}

You just happen to be storing it in a vector instead of (in thsi case) a
global variable. Once an object is allocated using new all you need is the
pointer to that memory to access the instance, until delete is called on it.
However you happen to get that pointer (global, from a vecotr, a paramter,
whatever).

Incidently, now a days "heap" is commonly called the "free store". I'm not
sure what the standard calls it.

Just make sure you delete the pointer when done.