Description:

template<typename TEnum>
requires std::is_enum_v<TEnum>
struct alib::enumops::IterableTraits< TEnum >

A simple type trait that - if specialized - enables standard and range-based C++ iteration of the elements of an enumeration. Specializations have to declare constexpr fields Begin and End, as documented with this type.

Note: The unspecialized version of this struct is empty.

If specialized, the following entities become available:

Attention: Likewise with the operators introduced with other type traits of this module, this documentation "fakes" the operators into namespace alib::enumops::iterable, while in fact they are defined in the global namespace!
See corresponding note in the Programmer's Manual for details.

Restrictions
For technical reasons, this concept is not applicable to enum types that are defined as private or protected inner types of structs or classes.

See also

Macros ALIB_ENUMS_MAKE_ITERABLE and ALIB_ENUMS_MAKE_ITERABLE_BEGIN_END, which specialize this type trait for a given enumeration type.
Type EnumIterator used to perform iterations.
For details and a source code sample see chapter 3. Enum Iteration of the Programmer's Manual of the module ALib EnumOps.

Template Parameters

TEnum The enum type to enable iteration for.

Definition at line 52 of file iterable.inl.

Inheritance diagram for alib::enumops::IterableTraits< TEnum >:

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Collaboration diagram for alib::enumops::IterableTraits< TEnum >:

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