qtty-cpp

Why it exists

qtty-cpp gives C++ projects typed units, literals, and conversions without hiding what is happening underneath. It uses the same conversion engine as qtty, so the rules stay consistent across languages.

Key Features

• Strong types per unit to prevent dimension mixing
• Unit conversion via Quantity::to<T>()
• User-defined literals (10.0_km, 5.0_s)
• Generated headers from qtty-ffi definitions
• CMake target for easy integration

Getting Started

// CMakeLists.txt
add_subdirectory(path/to/qtty-cpp)
target_link_libraries(myapp PRIVATE qtty_cpp)

// main.cpp
#include "qtty/qtty.hpp"
using namespace qtty;

auto distance = 100.0_km;
auto time = 2.0_h;
auto speed = distance / time;
Meter m = distance.to<Meter>();

Contributing

We welcome contributions! Here's how you can help:

• 1 Fork the repository and create your branch from main
• 2 Make your changes and add tests if applicable
• 3 Ensure all tests pass with cargo test
• 4 Submit a pull request with a clear description

License

This project is licensed under the BSD-3-Clause license. See the LICENSE file for details.