Template:get lang formal
From cppreference.com
Returns the programming language to use for a page by default. The output value depends on the title of the page this template is included in.
{{get lang}}
- If the page title begins with "c/", then the output value is "c", if the page title begins with "cpp/", then the output value is "cpp". Otherwise the output value is "cpp".
{{get lang formal}}
- If the page title begins with "c/", then the output value is "C", if the page title begins with "cpp/", then the output value is "C++". Otherwise the output value is "C++".