Beartype is an open-source pure-Python PEP-compliant near-real-time hybrid runtime-static third-generation type checker emphasizing efficiency, usability, unsubstantiated made up jargon and thrilling puns.

libc++ is another implementation of the C++ standard library.

clangd understands your C++ code and adds smart features to your editor: - code completion - compile errors - go-to-definition - and more.

The Devel::MAT ecosystem allows developers of perl programs to inspect and analyse memory-related problems such as memory leaks, unexpected memory consumption, or odd state. This is an "offline" analysis system, in the sense that the analysis tools all run in a different process, possibly at a later time, than the perl process that is being analysed.

Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC).

The Mobile Robot Programming Toolkit (MRPT) is an extensive, cross-platform, and open source C++ library aimed to help robotics researchers to design and implement algorithms in the fields of Simultaneous Localization and Mapping (SLAM), computer vision, and motion planning (obstacle avoidance).