Enumerations in C++ are user-defined data types used to assign names to integral constants. They make programs more readable and easier to manage.<\/p>\n\n\n\n
An enumeration ( Instead of using numbers directly, you can use meaningful names.<\/p>\n\n\n\n Enumerations are useful because they:<\/p>\n\n\n\n By default:<\/p>\n\n\n\n Example:<\/p>\n\n\n\n You can assign your own values.<\/p>\n\n\n\n Modern C++ provides strongly typed enumerations.<\/p>\n\n\n\n Accessing values:<\/p>\n\n\n\n Think of traffic signals:<\/p>\n\n\n\n Using names is much easier than remembering numbers like Enumerations are important because they:<\/p>\n\n\n\n <\/p> <\/div> <\/div>\n\n\n\n Enumerations in C++ are useful user-defined data types that assign names to integer constants. They improve readability, reduce confusion, and help create clean and maintainable programs.<\/p>\n\n\nenum<\/code>) is a data type that consists of a set of named integer constants.<\/p>\n\n\n\nWhy Use Enumerations?<\/h2>\n\n\n\n
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Syntax of Enumeration<\/h2>\n\n\n\n
enum EnumName {
constant1,
constant2,
constant3
};<\/code><\/pre>\n\n\n\nExample of Enumeration<\/h2>\n\n\n\n
#include <iostream>
using namespace std;
enum Day {
Monday,
Tuesday,
Wednesday,
Thursday,
Friday
};
int main() {
Day today = Wednesday;
cout << today;
return 0;
}<\/code><\/pre>\n\n\n\nOutput<\/h2>\n\n\n\n
2<\/code><\/pre>\n\n\n\nHow Enumerations Work<\/h2>\n\n\n\n
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0<\/code><\/li>\n\n\n\nMonday = 0
Tuesday = 1
Wednesday = 2<\/code><\/pre>\n\n\n\nAssigning Custom Values<\/h2>\n\n\n\n
enum Status {
Success = 1,
Error = 2,
Pending = 3
};<\/code><\/pre>\n\n\n\nExample with Custom Values<\/h2>\n\n\n\n
#include <iostream>
using namespace std;
enum Level {
Low = 10,
Medium = 20,
High = 30
};
int main() {
Level l = High;
cout << l;
return 0;
}<\/code><\/pre>\n\n\n\nOutput<\/h2>\n\n\n\n
30<\/code><\/pre>\n\n\n\nUsing Enumeration in Conditions<\/h2>\n\n\n\n
#include <iostream>
using namespace std;
enum TrafficLight {
Red,
Yellow,
Green
};
int main() {
TrafficLight signal = Green;
if (signal == Green) {
cout << \"Go\";
}
return 0;
}<\/code><\/pre>\n\n\n\nEnumeration with switch Statement<\/h2>\n\n\n\n
switch(signal) {
case Red:
cout << \"Stop\";
break;
case Green:
cout << \"Go\";
break;
}<\/code><\/pre>\n\n\n\nEnum Class (Modern C++)<\/h2>\n\n\n\n
enum class Color {
Red,
Green,
Blue
};<\/code><\/pre>\n\n\n\nColor::Red<\/code><\/pre>\n\n\n\nDifference Between enum and enum class<\/h2>\n\n\n\n
enum<\/th> enum class<\/th><\/tr><\/thead> Less type safety<\/td> Strong type safety<\/td><\/tr> Values accessible directly<\/td> Access using scope operator<\/td><\/tr> Older style<\/td> Modern C++ style<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Advantages of Enumerations<\/h2>\n\n\n\n
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Real-Life Example<\/h2>\n\n\n\n
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0<\/code>, 1<\/code>, or 2<\/code>.<\/p>\n\n\n\nWhy Enumerations are Important<\/h2>\n\n\n\n
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Conclusion<\/h2>\n\n\n\n