How do I initialize a struct in C?

How do I initialize a struct in C?

In C, you can initialize a struct at the time of declaration using curly braces. For example:

struct Point {
    int x;
    int y;
};

struct Point p1 = {10, 20};

Can I initialize only some members of the struct?

Yes, you can initialize specific members by using designated initializers. For example:

struct Point p2 = {.y = 30}; // x will be initialized to 0

What happens if I don't initialize a struct?

If you don't initialize a struct, its members will contain garbage values if it's declared as a local variable. However, if it's declared as static or global, it will be initialized to zero.

Are there any best practices for struct initialization?

It's a good practice to always initialize your structs to avoid undefined behavior. Using designated initializers can also improve code readability.