Summary  
This chapter teaches how to define enumeration types to represent a finite set of related values (including raw and associated values) and how to use pattern matching with switch statements to handle different enum cases in code.

General domain of usage  
State management in applications

#define CATCH_CONFIG_MAIN
#include <catch2/catch.hpp>

enum Status { Pending, InProgress, Done };
bool isDone(Status s);

TEST_CASE("isDone returns true only for Done", "[isDone]") {
    REQUIRE(isDone(Pending) == false);
    REQUIRE(isDone(InProgress) == false);
    REQUIRE(isDone(Done) == true);
}

test.cpp

Master the essentials of C++ structures and enumerations. Learn how to define, use, and combine structs and enums to model real-world data, and practice with hands-on coding tasks.

Explore the basics of structs in C++, including their syntax, initialization, and how they differ from classes.

Delve into more complex struct scenarios, including nesting and arrays.

Discover how enums provide named constants and how to use them effectively.

Challenge: Defining and Using Enums

解答