JUCE is an open-source cross-platform C++ application framework
Performance-portable, length-agnostic SIMD with runtime dispatch
Kick-start your C++! A template for modern C++ projects
Intel SPMD Program Compiler
Beef Programming Language
CasADi is a symbolic framework for numeric optimization
Infrared remote library for Arduino, send and receive infrared signals
Cross-platform SDK for creating and modifying PDF documents
Proxy: Next Generation Polymorphism in C++
Serialization/RPC system - core tools and C++ library
Insanely fast native C++, Swift or Kotlin modules
XLS: Accelerated HW Synthesis
Software version control visualization
A wxWidgets GUI Builder
Development toolkit for Web Services and XML data bindings for C & C++
Object-oriented equation-based modelling and optimisation software
Real-Time Event Frameworks based on active objects & state machines
Please go to the GitHub page for more information
Ox is an attribute-grammar evaluator generator.
The regex-centric, fast lexical analyzer generator for C++
A New Programming Language for FPGA Projects
It's a clone of 'https://sourceforge.net/projects/codedesigner/'
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Simple and flexible programming language for applications development
Helps create derived class in C++.