# Developing in the QuasarApp group QuasarApp group developing guid. In this page collected all guides for using programming languages. ## C++ ### Creatin a new repository. For build c++ projects QuasarApp group use the CMake build system. 1. All new projects should be created using our [cmake](https://github.com/QuasarApp/CMakeProject) tempalte. 2. All files of the projects must be signed copyright. > Copyright example: ``` cpp //# //# Copyright (C) 2021-2021 QuasarApp. //# Distributed under the lgplv3 software license, see the accompanying //# ``` 3. All projects must be have a tests, main shared and static library and executable file for using a main library. For more information about structure projects see [this](ProjectStructure.md) guide. 4. All projects should be support next cmake targets: * test - for run tests. * deploy - for create a distribution kits. * release - for prepare signed distro pacakges and update repositories * doc - for generate technical documentation. > Do not worry. All This targets alredy sopports in the our [CMake](https://github.com/QuasarApp/CMake) toolchains and [CMakeProject](https://github.com/QuasarApp/CMakeProject) template. 5. All functions and classes must be documented using doxygen comments. For more information about syntaxis of the doxygen comments see the [doxygen](https://www.doxygen.nl/manual/docblocks.html) documentation > Example: ``` cpp /** * @brief qHash are Simple hash function of the Random object * @param rand are Input data. * @return crc32 hash code. */ uint qHash(Random rand); ``` 6. All develops library classes must be implemented on the library namespace to avoid conflicts with the names of other libraries. > Example ``` cpp namespace QH { /** * ... */ class PKG { // ... } } ``` # And good luck it will be useful to you 😉