Developer-Guide/standards/cpp.md

C++

The c++ code should focus on using simplicity over "modern solutions". This may often mean to restrict the code on earlier c++ versions and sometimes even c code.

Operating system support

C++ solutions must be valid on Windows 10 and Linux.

Use of namespace

Namespaces must never be globally used. This means for example use namespace std; is prohibited and functions from the standard namespace should be prefixed instead std::

Templates

Don't use c++ templates.