@@ -296,6 +296,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
*[Hashmaps](https://github.com/goossaert/hashmap) - Implementation of open addressing hash table algorithms in C++. [MIT]
*[Hopscotch map](https://github.com/Tessil/hopscotch-map) - A fast header-only hash map which uses hopscotch hashing for collisions resolution. [MIT]
*[LSHBOX](https://github.com/RSIA-LIESMARS-WHU/LSHBOX) - A c++ toolbox of locality-sensitive hashing (LSH), provides several popular LSH algorithms, also support Python and MATLAB. [GPL]
*[PGM-index](https://github.com/gvinciguerra/PGM-index) - A data structure that enables fast lookup, predecessor, range searches and updates in arrays of billions of items using orders of magnitude less space than traditional indexes. [Apache2] [website](https://pgm.di.unipi.it)
*[plf::list](https://github.com/mattreecebentley/plf_list) - A std::list implementation which removes range splicing in order to enable cache-friendlier structure, yielding significant performance gains. [zLib] [website](http://www.plflib.org/list.htm)
*[plf::stack](https://github.com/mattreecebentley/plf_stack) - A replacement container for the std::stack container adaptor, with better performance than any std container in a stack context. [zLib] [website](http://www.plflib.org/stack.htm)
*[ring_span lite](https://github.com/martinmoene/ring-span-lite) - A simplified implementation of Arthur O'Dwyer's ring_span implementation ie. a circular buffer view. [MIT]
