Vector Iterator

[JackC]

Hi,

If i have a std::vector containing pointers, then iterate through the
vector and im slightly confused as to how i use the item from the
iterator?

for example,

vector<MyClass*> myvector;
....
vector<MyClass*>::iterator it;

for(it = myvector.begin(); it < myvector.end(); it++)
{
// This doesn't work,
**it->myclassmember();
}

What am i doing wrong? I thought the iterator is a pointer to a
pointer in this case?

Thanks alot for any help,

 

[Erik Wikström]

Hi,

If i have a std::vector containing pointers, then iterate through the
vector and im slightly confused as to how i use the item from the
iterator?

for example,

vector<MyClass*> myvector;
...
vector<MyClass*>::iterator it;

for(it = myvector.begin(); it < myvector.end(); it++)
{
// This doesn't work,
**it->myclassmember();
}

What am i doing wrong? I thought the iterator is a pointer to a
pointer in this case?

Use either

(*it)->myclassmember();

or

(**it).myclassmember();

 

[JackC]

Use either

(*it)->myclassmember();

or

(**it).myclassmember();

Thanks very much, works fine.

 

[alasham.said]

On 2008-04-22 13:50:53 -0400, Erik Wikström <[email protected]> said: ...
Or

it->myclassmember();

...

Is that possible? myvector is a vector of pointers.

Regards.

 

[sk_usenet]

Is that possible? myvector is a vector of pointers.

No. Probably Pete was in a hurry.

 

[Ian Collins]

Try it.

Ant you'll get a compile error!