How do I use structs with functions in C programming?

How do I use structs with functions in C programming?

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

Yes, please show me an example of passing a struct by reference.

Sure! Here's a simple example:

#include <stdio.h>

struct Point {
    int x;
    int y;
};

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

int main() {
    struct Point p1 = {1, 2};
    movePoint(&p1);
    printf("Point after moving: (%d, %d)\n", p1.x, p1.y);
    return 0;
}

This code moves the point by incrementing its coordinates.

What about passing a struct by value?

When you pass a struct by value, a copy of the struct is made. Here's an example:

#include <stdio.h>

struct Point {
    int x;
    int y;
};

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

int main() {
    struct Point p1 = {1, 2};
    printPoint(p1);
    return 0;
}

In this case, the original struct remains unchanged.