package main

import "core:fmt"

five: int = 5
six: int = 6

foo :: proc(p: ^int) {
	fmt.println("p memory address: ", p)
	fmt.println("value of p: ", p^)
	p = &six

	// p DROPPED here
	// a in main() is not changed
}


bar :: proc(pp: ^^int) {
	fmt.println("pp memory address: ", pp)
	fmt.println("pp memory address deferenced: ", pp^)
	pp^ = &six

	// pp DROPPED here
}

dez :: proc() -> ^int {
	return &six
}

main :: proc() {

	fmt.println("memory space of 5: ", &five)
	fmt.println("memory space of 6: ", &six)

	a := &five

	// YOU CAN'T CALL FOO
	// fmt.println("~~~~~~~~~~~~~~~~~~~~~~~~\n")
	// fmt.println("CALL TO FOO WITH PARAM P")
	// fmt.println("a memory address: ", a)
	// foo(a)
	// fmt.println("a memory address: ", a)


	fmt.println("~~~~~~~~~~~~~~~~~~~~~~~~\n")
	fmt.println("CALL TO BAR WITH PARAM PP")
	fmt.println("a memory address: ", a)
	bar(&a)
	fmt.println("a memory address: ", a)
	fmt.println("value of a: ", a^)


	fmt.println("~~~~~~~~~~~~~~~~~~~~~~~~\n")
	b := &five
	fmt.println("b memory space and value", b, b^)
	b = dez()
	fmt.println("b memory space and value", b, b^)
}