Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. The only difference should be that when you de-reference a const iterator you get a const reference rather than a reference to the object in the container. I find the easiest way to implement iterators is boost::iterator.
Output Iterators in C++
Const vs Regular iterators in C++ with examples - GeeksforGeeks
Almost every program you write will have some need to iterate over a collection. You'll write code that examines every item in a collection. You'll also create iterator methods which are methods that produces an iterator which is an object that traverses a container, particularly lists for the elements of that class. These can be used for:. The C language provides features for both these scenarios. This article provides an overview of those features. This tutorial has multiple steps.
It is strongly built on the principles of template programming. The STL library has three main components : Containers: These classes define the data structures which are used to contain the data. The data may be stored in linked lists, or trees or arrays. The containers provided in the STL are vector, dequeue, list, forward list, set, multiset, map and multimap.
As an abstract algorithm this is clear, but can we implement it without specifying what kind of sequence we are dealing with? A range is the standard STL way to specify a sequence. Most STL algorithms take a range as an argument. The asymmetry of begin and end has many nice features:.