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Build a Zip Iterator Adapter

Explore how to build a zip iterator adapter in C++ that combines elements from two sequences into pairs. Learn the construction of this adapter class, understand its iterator traits and operator overloads, and see how it enables seamless iteration over zipped containers. This lesson helps you extend iterator functionality to aggregate multiple sequences efficiently.

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Many scripting languagesScripting languages are programming languages used for rapid application development and automation, typically interpreted rather than compiled. include a function for zipping two sequences together. A typical zip operation will take two input sequences and return a pair of values for each position in both inputs:

Let's consider the scenario of two sequences—they can be containers, iterators, or initialization lists.

Containers to be zipped
Containers to be zipped

We want to zip them together to make a new sequence with pairs of elements from the first two sequences:

Zip operation
Zip operation

In this recipe we will accomplish this task with an iterator adapter.

How to do it

In this recipe we’ll build a zip iterator adapter that takes two containers of the same type and zips the values into std::pair objects:

  • In our main() function we want ...