Re: Problem with pointers and iterators

From:
red floyd <redfloyd@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Mon, 6 Oct 2008 15:22:44 -0700 (PDT)
Message-ID:
<b2929d33-7582-4d80-a80b-d56bdc7d4149@v72g2000hsv.googlegroups.com>
On Oct 6, 1:56 pm, Griff Johns <n...@spam.com> wrote:

Hi, if I have the following code:
class MyObject
{
public:
   MyObject() {};
   ~MyObject() {};

Delete the semicolons after constructor/destructor.

   int x;

}

class MyObjectList : public std::vector<MyObject> {};

void Foo(MyObject* obj)
{
   // Do something with obj->x

}

If I loop through it like this:

MyObjectList list;
// stuff list with objects

MyObjectList::iterator it;
for (it = list.begin(); it != list.end(); ++it) {
   // I used to be able to do this:
   MyObject* p_obj = it;
   Foo(p_obj);

   // Or this
   Foo(it);

}

But now the error I get is 'cannot convert parameter 1 from
'std::vector<_Ty>::iterator' to 'MyObject *'

This is after migrating a project from vc6.0 to vc7.1, but I think that
the issue lies with the language standards(?). So why does this happen
now, and how do I resolve it?


use Foo(&*it);

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