Writing a custom iterator in modern C++

Re:Writing a custom iterator in modern C++ by Olipro on Monday December 21, 2020 @05:47AM (#25493740)

An iterator is a class. It can contain any private data you desire and mutate in any wonderful and/or stupid ways you desire.

How it decides to compare equal to the .end() instance is also your call. Your example is not a compliant iterator (as in, wouldn't work in a range-based for loop) - yet the same behaviour would be achievable through your own operator++() and operator bool(),

[ Parent | on HN ]

Re:Writing a custom iterator in modern C++ by fjfaase on Monday December 21, 2020 @06:33AM (#25493951)

I agree, but I feel it is a little sad that such a powerful programming concept as an iterator is hard to implement in C++ if you want to make full use of it. Other program languages have made better choices with respect to this and allow you to write cleaner, shorter code.

[ Parent | on HN ]

Re:Writing a custom iterator in modern C++ by saurik on Monday December 21, 2020 @01:50PM (#25498037)

Why not just use those two operators instead of more and next?

[ Parent | on HN ]