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enum_name returns string_view

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terik23 2019-04-21 20:52:14 +05:00
parent 8ddfae18d1
commit 9dc22008a7
4 changed files with 25 additions and 36 deletions
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@ -53,18 +53,14 @@ enum Color { RED = 2, BLUE = 4, GREEN = 8 };
```cpp
Color color = Color::RED;
auto color_name = magic_enum::enum_name(color);
if (color_name.has_value()) {
// color_name.value() -> "RED"
}
// color_name -> "RED"
```
* Static storage enum variable to string
```cpp
constexpr Color color = Color::BLUE;
constexpr auto color_name = magic_enum::enum_name(color);
if (color_name.has_value()) {
// color_name.value() -> "BLUE"
}
// color_name -> "BLUE"
```
* String to enum value
@ -173,7 +169,7 @@ enum Color { RED = 2, BLUE = 4, GREEN = 8 };
* `magic_enum::enum_values` returns `std::array<E, N>` with all enum value where `N = number of enum values`, sorted by enum value.
* `magic_enum::enum_name` returns `std::optional<std::string_view>`, using `has_value()` to check contains enum name and `value()` to get the enum name.
* `magic_enum::enum_name` returns `std::string_view`. If enum value does not have name, returns empty string.
* `magic_enum::enum_names` returns `std::array<std::string_view, N>` with all string enum name where `N = number of enum values`, sorted by enum value.