Re: [Boost-users] boost::iterator_facade and assignment operation

on Wed Oct 12 2011, Arun Ramasamy wrote:

HI, I'm using the boost iterator_facade class to implement a random access iterator for my class. When I try to assign the iterators to one another, the compiler fails saying

'operator =' function is unavailable".

Sample code from my implementation below:

class MyClass{ class Iterator : public boost::iterator_facade{ protected: void increment(); bool equal(const Iterator& rhs)const; //etc //... Note - no method implemented to support assignment } }

I'd assumed that it'll be possible to assign iterators to each other. Why is the assignment operator not supported by iterator_facade.

It is. My first guess is that you have added a data member with a private operator=, but there isn't enough information in your post to be sure. I suggest you: a) reduce the problem to a *minimal* example that demonstrates the problem. b) post the example and the *full* error message here. -- Dave Abrahams BoostPro Computing http://www.boostpro.com