Enums & Structs in C++

From the C++ cheat sheet · Enums & Structs · verified Jul 2026

enum class and aggregate structs.

cpp

// Quick Reference
enum class Color { Red, Green, Blue };
Color c = Color::Red;

struct Point { int x; int y; };
Point p{3, 4};

💡 Prefer enum class over plain enum - it scopes names and blocks implicit int conversion.

⚡ struct and class are identical except structs default to public members.

📌 Aggregate init Point{3, 4} sets members in declaration order.

🟢 Give struct members default initializers (int x = 0;) so partial init stays safe.

enumsstructs