ryanhaining/cppitertools

Health v2 · maintenance only

Adoption not part of the score

1430 stars · 124 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A header-only C++17 library that ports Python's itertools and built-in iteration functions (range, enumerate, zip, groupby, combinations, etc.) to C++ range-based for loops. It uses lazy evaluation and works with standard iterators without copying underlying elements.

Use cases

• use python-style enumerate and zip in C++ loops
• generate permutations and combinations in C++
• chunk or batch a container into groups
• lazily filter and transform sequences in C++
• implement sliding window over a range
• group elements by a key like itertools.groupby

When to choose

• you want Python-like iteration ergonomics in modern C++
• you need a dependency-light, header-only iterator utility library
• you want lazy evaluation to avoid materializing intermediate containers

When to avoid

• you need zip_longest without a Boost dependency
• your codebase targets pre-C++17 compilers
• you need parallel or coroutine-based iteration pipelines

Facets

library · maturity stable

developer-tools developer-tools cpp cross-platform header-only itertools lazy-evaluation range-based-for python-inspired iterators algorithms

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