bradfitz/iter

Range over integers [0,n). Seriously, that's it.

danlehmann/arbitrary-int

A modern and lightweight implementation of arbitrary integers for Rust

boostorg/range

Boost.org range module

isaacholt100/bnum

Powerful fixed-size, arbitrary bit-width integer types in Rust.

rust-num/num-iter

Generic Range iterators for Rust

JErnestoMtz/rapl

Rank Polymorphic array library for Rust.

CaseyCarter/cmcstl2

An implementation of C++ Extensions for Ranges

CarlKCarlK/range-set-blaze

Integer sets as fast, sorted, integer ranges with full set operations