OpenTTD Source 20251019-master-g9f7f314f81
Concepts
Here is a list of all documented concepts with brief descriptions:
 RConvertibleThroughBaseA type is considered 'convertible through base()' when it has a 'base()' function that returns something that can be converted to int64_t
 RConvertibleThroughBaseOrToType is convertible to TTo, either directly or through ConvertibleThroughBase