C语言中结构中的结构的数组

#include<stdio.h>

struct point{
    int x;
    int y;
};

struct rectangle{
    struct point p1;
    struct point p2;
};

void printRect(struct rectangle r){
    printf("<%d,%d> to <%d,%d>\n",r.p1.x,r.p1.y,r.p2.x,r.p2.y);
}

int main() {
    int i;
    struct rectangle rects[]={{{1,2},{3,4}},{{5,6},{7,8}}};//2 rectangles
    for (int i = 0; i < 2; ++i) {
        printRect(rects[i]);
    }

    return 0;
}