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add integer_cast

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This commit is contained in:
terik23 2019-04-11 05:25:40 +05:00
parent 4a540b1a2e
commit 0c1128947b
2 changed files with 37 additions and 0 deletions
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12
example/example.cpp
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@ -55,6 +55,18 @@ int main() {
std::cout << "GREEN = " << c3.value() << std::endl; // GREEN = 10
}
// Enum value to integer value.
auto color_underlying = magic_enum::integer_cast(Color::RED);
if (color_underlying.has_value() && color_underlying.value() == static_cast<std::underlying_type_t<Color>>(Color::RED)) {
std::cout << "RED = " << color_underlying.value() << std::endl; // RED = -10
}
// Enum value to specific type integer value.
auto color_int = magic_enum::integer_cast<int>(Color::RED);
if (color_int.has_value() && color_int.value() == static_cast<int>(Color::RED)) {
std::cout << "RED = " << color_int.value() << std::endl; // RED = -10
}
using namespace magic_enum::ops; // out-of-the-box stream operator for enums.
// ostream operator for enum.
std::cout << "Color: " << c1 << " " << c2 << " " << c3 << std::endl; // Color: RED BLUE GREEN