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dev v0.3.0

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terik23 2019-04-07 04:02:53 +05:00
parent 5a3d4b53e6
commit 74eac12c11
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example/example.cpp
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@ -20,45 +20,57 @@
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include <magic_enum.hpp>
#include <iostream>
#include <sstream>
#include <magic_enum.hpp>
enum Color { RED = -10, BLUE = 0, GREEN = 10 };
int main() {
// Enum variable to string enum name.
auto c1 = Color::RED;
auto c1_name = magic_enum::enum_to_string(c1);
// Enum variable to string name.
Color c1 = Color::RED;
auto c1_name = magic_enum::enum_name(c1);
if (c1_name.has_value()) {
std::cout << c1_name.value() << std::endl; // RED
}
// String enum name to enum variable.
auto c2 = magic_enum::enum_from_string<Color>("GREEN");
if (c2.has_value() && c2.value() == Color::GREEN) {
std::cout << "GREEN = " << c2.value() << std::endl; // GREEN = 10
}
// Static storage enum variable to string enum name.
constexpr auto c3 = Color::BLUE;
constexpr auto c3_name = magic_enum::enum_to_string<c3>();
if (c3_name.has_value()) {
std::cout << c3_name.value() << std::endl; // BLUE
}
constexpr auto colors = magic_enum::enum_to_sequence<Color>();
std::cout << "Colors:";
for (auto e : colors) {
std::cout << " " << magic_enum::enum_to_string(e).value();
// String enum name sequence.
constexpr auto color_names = magic_enum::enum_names<Color>();
std::cout << "Color names:";
for (auto n : color_names) {
std::cout << " " << n;
}
std::cout << std::endl;
// Color sequence: RED BLUE GREEN
// Color names: RED BLUE GREEN
constexpr auto color_names = magic_enum::enum_to_string_sequence<Color>();
std::cout << "Color names:";
for (auto e : color_names) {
std::cout << " " << e;
// String name to enum value.
auto c2 = magic_enum::enum_cast<Color>("BLUE");
if (c2.has_value() && c2.value() == Color::BLUE) {
std::cout << "BLUE = " << c2.value() << std::endl; // BLUE = 0
}
// Integer value to enum value.
auto c3 = magic_enum::enum_cast<Color>(10);
if (c3.has_value() && c3.value() == Color::GREEN) {
std::cout << "GREEN = " << c3.value() << std::endl; // GREEN = 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
// Number of enum values.
std::cout << "Color enum size: " << magic_enum::enum_count<Color>() << std::endl; // Color enum size: 3
// Indexed access to enum value.
std::cout << "Color[0] = " << magic_enum::enum_value<Color>(0) << std::endl; // Color[0] = RED
// Enum value sequence.
constexpr auto colors = magic_enum::enum_values<Color>();
std::cout << "Colors sequence:";
for (Color c : colors) {
std::cout << " " << c; // ostream operator for enum.
}
std::cout << std::endl;
// Color sequence: RED BLUE GREEN