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This commit is contained in:
neargye 2020-08-15 22:47:20 +05:00
parent 7892516990
commit d525acae66
3 changed files with 131 additions and 150 deletions
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20
example/example.cpp
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@ -39,9 +39,9 @@ int main() {
std::cout << c1_name << std::endl; // RED
// String enum name sequence.
constexpr auto names = magic_enum::enum_names<Color>();
constexpr auto& names = magic_enum::enum_names<Color>();
std::cout << "Color names:";
for (auto n : names) {
for (const auto& n : names) {
std::cout << " " << n;
}
std::cout << std::endl;
@ -49,21 +49,19 @@ int main() {
// String name to enum value.
auto c2 = magic_enum::enum_cast<Color>("BLUE");
if (c2.has_value() && c2.value() == Color::BLUE) {
if (c2.has_value()) {
std::cout << "BLUE = " << to_integer(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) {
if (c3.has_value()) {
std::cout << "GREEN = " << magic_enum::enum_integer(c3.value()) << std::endl; // GREEN = 10
}
// Enum value to integer value.
auto c4_integer = magic_enum::enum_integer(Color::RED);
if (c4_integer == static_cast<std::underlying_type_t<Color>>(Color::RED)) {
std::cout << "RED = " << c4_integer << std::endl; // RED = -10
}
std::cout << "RED = " << c4_integer << std::endl; // RED = -10
using namespace magic_enum::ostream_operators; // out-of-the-box ostream operator for all enums.
// ostream operator for enum.
@ -76,9 +74,9 @@ int main() {
std::cout << "Color[0] = " << magic_enum::enum_value<Color>(0) << std::endl; // Color[0] = RED
// Enum value sequence.
constexpr auto values = magic_enum::enum_values<Color>();
constexpr auto& values = magic_enum::enum_values<Color>();
std::cout << "Colors values:";
for (Color c : values) {
for (const auto& c : values) {
std::cout << " " << c; // ostream operator for enum.
}
std::cout << std::endl;
@ -103,9 +101,9 @@ int main() {
static_assert(magic_enum::is_scoped_enum_v<Flags>);
// Enum pair (value enum, string enum name) sequence.
constexpr auto entries = magic_enum::enum_entries<Color>();
constexpr auto& entries = magic_enum::enum_entries<Color>();
std::cout << "Colors entries:";
for (auto e : entries) {
for (const auto& e : entries) {
std::cout << " " << e.second << " = " << static_cast<int>(e.first);
}
std::cout << std::endl;