Alternative to backtracking regular expression engines
A single file C++ header-only PEG (Parsing Expression Grammars)
The official C++ client API for PostgreSQL
JSON library for Arduino and embedded C++. Simple and efficient
Matplot++: A C++ Graphics Library for Data Visualization
The regex-centric, fast lexical analyzer generator for C++
ALFOUR Programming language. Simple, safe, power, multi-platform.
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Argh! A minimalist argument handler
CSS validation and advanced preprocessor with nesting and variables
a dll to easily make gui windows with graphics in any language
Visual Studio .vc[x]proj to CMakeLists.txt (make, Ninja ...) enabler
C++ Dependency Injection
A simple, elegant way to handle command line arguments in C/C++.
C++ library for Apache Cassandra with Qt Framework
Allows to parse HTML in C++
UML 2 Statemachine for C++ is a development framework with DSL support
A tool and library to gather the Google Page Rank of web pages.