How do I pass structs to functions in C?

How do I pass structs to functions in C?

You can pass structs to functions in C by value or by reference. Would you like to see examples of both?

Yes, please show me how to pass by value first.

To pass a struct by value, you simply declare the function parameter as the struct type. For example:

struct Point {
    int x;
    int y;
};

void printPoint(struct Point p) {
    printf("Point(%d, %d)\n", p.x, p.y);
}

You would call it like this:

struct Point pt = {1, 2};
printPoint(pt);

What about passing by reference?

To pass a struct by reference, you use a pointer to the struct. Here's how:

void movePoint(struct Point *p) {
    p->x += 1;
    p->y += 1;
}

You would call it like this:

movePoint(&pt);