A C++ library for AVR and NodeMCU
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Blynk library for embedded hardware
C++ lightweight cross-platform game engine
ESP8266 core for Arduino
User mode C/C++ extended API library for Win32 programmers.
C++ library for creating XLSX files for MS Excel 2007 and above.
A C++17 cross-platform implementation for UUIDs
curlcpp is a C++ wrapper for libcurl.
C++ cryptographic library (modern hash functions, ciphers, KDFs)
A Header-Only cross-platform C++ TCP network library
Yocto/GL: Tiny C++ Libraries for Data-Driven Physically-based Graphics
Generic C++ SQL wrapper over different SQL DB engines.
Portable C library for proxy client support using standard SOCKETs.
Single sided linked list (kind of lib with test-code, C, C++ and java)
Automatically exported from Google code CityHash
An extensive list subsystem, written in C
A Portable Library for Code Execution
Interactive, thoroughly customizable maps
MIDI for Arduino
C++ library for controlling Raspberry Pi Camera (with/without OpenCV)
Report generator for Qt Framework
Lightweight profiler library for c++