Rob Stewart wrote:
From: "Reece Dunn" <msclrhd@hotmail.com>
Nothing. You do indeed need two functions: iterator iter_offset( difference_type ); const_iterator const_iter_offset( difference_type ) const;
Why? This is perfectly valid C++:
iterator iter_offset(different_type); const_iterator iter_offset(different_type) const;
So is there something in how you want to use them that precludes your overloading them that way?
No. I was not aware that it is possible to do this. I have now adopted struct char_string { ... virtual iterator iter_offset(different_type) = 0; virtual const_iterator iter_offset(different_type) const = 0; }; into my implementation. Q: Since the above is valid C++, is the following?: virtual void myfn( char ) = 0; virtual void myfn( int, bool ) = 0; Because I had assumed that you could not do this, since (1) I haven't read the standard that properly, I have mainly focused on learning from other books (like Stroustrup, 3ed) and (2) I haven't seen any code that uses virtual functions like char_string above or my question. Regards, Reece _________________________________________________________________ Express yourself with cool new emoticons http://www.msn.co.uk/specials/myemo