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neargye 2022-02-10 20:17:44 +02:00
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doc/reference.md
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@ -329,8 +329,8 @@ constexpr string_view enum_type_name() noexcept;
## `enum_fuse`
```cpp
template<typename ... Es>
[[nodiscard]] constexpr size_t enum_fuse(Es ... values);
template <typename... Es>
[[nodiscard]] constexpr std::size_t enum_fuse(Es... values);
```
* Returns a bijective mix of several enum values with [Cantor pairing function](https://en.wikipedia.org/wiki/Pairing_function). This can be used to emulate 2D switch/case statements.
@ -338,9 +338,9 @@ template<typename ... Es>
* Examples
```cpp
switch (magic_enum::enum_fuse(color1, color2)) {
case magic_enum::enum_fuse(RED, BLUE): // ...
case magic_enum::enum_fuse(RED, RED): // ...
switch (magic_enum::enum_fuse(color, direction)) {
case magic_enum::enum_fuse(Color::RED, Directions::Up): // ...
case magic_enum::enum_fuse(Color::BLUE, Directions::Down): // ...
// ...
}
```