#include "block_header.h"

block_header_t * get_header(void *ptr);

block_header_t * get_header(void *ptr) {
	return (block_header_t *) ((char *) ptr - HEADER_SIZE);
}

void * get_next(void *ptr) {
	return get_header(ptr)->next;
}

size_t get_size(void *ptr) {
	return get_header(ptr)->size;
}

void set_size(void *ptr, size_t size) {
	get_header(ptr)->size = size;
}

void set_requested_size(void *ptr, size_t size) {
	get_header(ptr)->requested_size = size;
}

void set_next(void *ptr, void *next_block) {
	get_header(ptr)->next = next_block;
}