Re: [boost] Question about indirect_iterator

From: Marshall Clow (marshall_at_[hidden])
Date: 2003-07-15 19:01:14

"Joe Gottman" <jgottman_at_[hidden]> wrote:
>Suppose I have a vector<Foo *> and I want to use indirect_iterator to create
>an iterator that allows the user to read but not modify the objects pointed
>to by elements of the vector.  In other words, I want to do the following:
>   typedef /*whatever */ my_iterator;
>   my_iterator it(theVector.begin());
>   const Foo &foo = *it;
>
>    But I want
>          *it = Foo();
>to fail.  Also, if possible I would like this new type to interact with
>      indirect_iterator<vector<Foo *>::iterator>
>in the expected way.
>
>   I'm sure this is possible, but the documentation doesn't really say how to
>do it.

is there some reason you can't use const_iterator?
-- 
-- Marshall
Marshall Clow     Idio Software   <mailto:marshall_at_[hidden]>
Hey! Who messed with my anti-paranoia shot?