The latest news from Google on open source releases, major projects, events, and student outreach programs. We’re pleased to announce C++ B-Tree, a C++ template library that implements B-tree containers with an analogous interface to the standard STL map, set, multimap, and multiset containers. B-trees are well-known data structures for organizing secondary storage, because they are optimized for
![C++ containers that save memory and time](https://cdn-ak-scissors.b.st-hatena.com/image/square/4b1d3b004ef4822771b918f5415af76e2d5fd1db/height=288;version=1;width=512/https%3A%2F%2F4.bp.blogspot.com%2F-yfLN_ogPzfU%2FUQgiRoJpQkI%2FAAAAAAAAAIM%2FlHOhtgChWe0%2Fw1200-h630-p-k-no-nu%2Fimage00.png)