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Create a Generator as Iterators

Explore how to implement a C++ generator that produces the Fibonacci sequence as a forward iterator, compatible with STL algorithms. This lesson teaches creating an efficient iterator class that generates values on-the-fly without relying on containers, enabling seamless integration with range-based loops and algorithms.

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A generator is an iterator that generates its own sequence of values. It does not use a container. It creates values on the fly, returning one at a time as needed. A C++ generator stands on its own; it does not need to wrap around another object.

In this recipe, we'll build a generator for a Fibonacci sequenceThe Fibonacci sequence is a series of numbers where each number is the sum of the two preceding numbers, starting with 1, 1.. This is a sequence where each number is the sum of the previous two numbers in the sequence, starting with 00 and 1 ...