In C++ there’s the Boost Interval Container Library, which has an excellent API: https://www.boost.org/doc/libs/latest/libs/icl/doc/html/index.html https://www.

In C++ there’s the Boost Interval Container Library, which has an excellent API: https://www.boost.org/doc/libs/latest/libs/icl/doc/html/index.html https://www.boost.org/doc/libs/latest/libs/icl/doc/html/inde... Unfortunately it’s implemented on top of std::set/std::map and I’ve had problems with heap blow up on large maps. This project looks like it uses 32 bit indices into a vector for backing store.