C++ examples for Data Type:enum
You can define enum type as follows:
enum class Day {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday};
Here's an example that demonstrates some of the things you can do with enumerations:
#include <iostream> #include <iomanip> using std::setw;/*from ww w . ja v a 2 s. c om*/ int main() { enum class Day { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday } yesterday{ Day::Monday }, today{ Day::Tuesday }, tomorrow{ Day::Wednesday }; Day poets_day{ Day::Friday }; enum class Punctuation : char { Comma = ',', Exclamation = '!', Question = '?' }; Punctuation ch{ Punctuation::Comma }; std::cout << "yesterday's value is " << static_cast<int>(yesterday) << static_cast<char>(ch) << " but poets_day's is " << static_cast<int>(poets_day) << static_cast<char>(Punctuation::Exclamation) << std::endl; today = Day::Thursday; // Assign a new ... ch = Punctuation::Question; // ... enumerator values tomorrow = poets_day; // Copy enumerator value std::cout << "Is today's value(" << static_cast<int>(today) << ") the same as poets_day(" << static_cast<int>(poets_day) << ")" << static_cast<char>(ch) << std::endl; }