What are the different categories of iterators in C++?
An example of an AI chatbot conversation about C++ iterator categories.
What are the different categories of iterators in C++?
In C++, iterators are categorized into five main types: input, output, forward, bidirectional, and random access.
Can you explain each category briefly?
Sure! Input iterators read data, output iterators write data, forward iterators can read and write, bidirectional iterators can move both ways, and random access iterators allow direct access to any element.
What are some examples of each type?
Examples include: Input - istream_iterator, Output - ostream_iterator, Forward - forward_list::iterator, Bidirectional - list::iterator, Random Access - vector::iterator.
How do I choose the right iterator for my needs?
Choose based on your data structure and the operations you need. For example, use random access for arrays and bidirectional for linked lists.
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