#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>

typedef struct {
    int x;
    int y;
} Point;

// COMPOUND LITERAL lets you assign an entire object, including all fields, at once.
// You can also pass it to a function.
//
// When setting all fields of an object, use a compound literal or named initializer,
// wherever possible, unless a specific, articulable reason not to.

int main(int argc, char* argv[]) {
    // NAMED INITIALIZER
    Point p1 = { .x = 5, .y = 6 };  // NAMED INITIALIZER

    // COMPOUND LITERAL
    p1 = (Point) { .x = 7, .y = 8 };  // COMPOUND LITERAL

    printf("p1 contains x=%d, y=%d\n", p1.x, p1.y);

    Point p2 = p1;  // regular initializer (not a named initializer or compound literal)

    p1 = (Point) { .x = 9, .y = 10 };  // COMPOUND LITERAL

    p2 = p1;   // regular assignment

    // WRONG:  Named initializer syntax does not work as a RHS¹ of an assignment.
    // p1 = { .x = 7, .y = 8 };
    return EXIT_SUCCESS;
}

// ¹ RHS = right-hand side

/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */