OpenTTD Source 20260324-master-gd9c35037d4
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
 RConvertibleThroughBaseOrUnderlyingOrToType is convertible to TTo, either directly, through ConvertibleThroughBase or through to_underlying