mirror/magic_enum
1
0
Fork 0
mirror of https://github.com/Neargye/magic_enum.git synced 2026-01-09 23:34:23 +00:00
Code Activity

add enum concept

Browse source
This commit is contained in:
neargye 2019-11-18 13:35:59 +05:00
parent e325a70663
commit 3b2ebf7e55
2 changed files with 18 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

10
example/example.cpp
View file

@ -26,6 +26,12 @@
enum class Color : int { RED = -10, BLUE = 0, GREEN = 10 };
template <typename E>
auto to_integer(magic_enum::Enum<E> value) {
// magic_enum::Enum<E> - C++17 Concept for enum type.
return static_cast<std::underlying_type_t<E>>(value);
}
int main() {
// Enum variable to string name.
Color c1 = Color::RED;
@ -44,7 +50,7 @@ int main() {
// String name to enum value.
auto c2 = magic_enum::enum_cast<Color>("BLUE");
if (c2.has_value() && c2.value() == Color::BLUE) {
std::cout << "BLUE = " << static_cast<int>(c2.value()) << std::endl; // BLUE = 0
std::cout << "BLUE = " << to_integer(c2.value()) << std::endl; // BLUE = 0
}
// Integer value to enum value.
@ -55,7 +61,7 @@ int main() {
// Enum value to integer value.
auto color_integer = magic_enum::enum_integer(Color::RED);
if (color_integer == static_cast<std::underlying_type_t<Color>>(Color::RED)) {
if (color_integer == to_integer(Color::RED)) {
std::cout << "RED = " << color_integer << std::endl; // RED = -10
}