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Introduce contains_value()

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* split enum_traits index

* add more proper way to check if enum contains certain value

* change description of contains_value() and add it in readme
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oficsu 2020-03-13 12:12:01 +03:00 • committed by GitHub
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@ -32,6 +32,7 @@ Header-only C++17 library provides static reflection for enums, work with any en
* `enum_names` obtains string enum name sequence.
* `enum_entries` obtains pair (value enum, string enum name) sequence.
* `enum_index` obtains index in enum value sequence from enum value.
* `contains_value` checks whether enum contains such value
* `is_unscoped_enum` checks whether type is an [Unscoped enumeration](https://en.cppreference.com/w/cpp/language/enum#Unscoped_enumeration).
* `is_scoped_enum` checks whether type is an [Scoped enumeration](https://en.cppreference.com/w/cpp/language/enum#Scoped_enumerations).
* `underlying_type` improved UB-free "SFINAE-friendly" [std::underlying_type](https://en.cppreference.com/w/cpp/types/underlying_type).