cpp
What is a .cpp file?
text/x-c++src
C++ (.cpp) is a plain-text source file for the C++ programming language — a statically typed, compiled language that extends C with classes, templates, operator overloading, the Standard Template Library, and RAII. It is used for high-performance applications, game engines, and systems software.
How to use a .cpp file
Use an example .cpp file to test syntax highlighters, C++ compilers (g++, clang++), static analysers and formatters, and parser or language-detection tooling against real language constructs.
Download example .cpp files
- C++ — Hello WorldThe classic hello-world in C++ — iostream and std::cout — for testing highlighters, C++ compilers, and parsers.
- C++ — Series (class template, STL)A realistic C++ snippet with a class template, STL algorithms (max_element, accumulate), std::move, and range handling — for testing highlighters, g++/clang++, and parsers against real templates.