OpenTTD Source 20260208-master-g43af8e94d0
ConvertibleThroughBaseOrUnderlyingOrTo Concept Reference

Type is convertible to TTo, either directly, through ConvertibleThroughBase or through to_underlying. More...

#include <settings_internal.h>

Concept definition

template<typename T, typename TTo>
concept ConvertibleThroughBaseOrUnderlyingOrTo = ConvertibleThroughBaseOrTo<T, TTo> || (is_scoped_enum_v<T> && std::is_convertible_v<std::underlying_type_t<T>, TTo>)
ConvertibleThroughBaseOrTo
Type is convertible to TTo, either directly or through ConvertibleThroughBase.
Definition convertible_through_base.hpp:30
ConvertibleThroughBaseOrUnderlyingOrTo
Type is convertible to TTo, either directly, through ConvertibleThroughBase or through to_underlying.
Definition settings_internal.h:78
is_scoped_enum_v
constexpr bool is_scoped_enum_v
Implementation of std::is_scoped_enum_v (from C++23).
Definition enum_type.hpp:20

Detailed Description

Type is convertible to TTo, either directly, through ConvertibleThroughBase or through to_underlying.

Template Parameters
TThe type under consideration.
TToThe type to convert to.

Definition at line 78 of file settings_internal.h.