#include <heap.h>
#include <stm32l476xx.h>

#define HEAP_SIZE (64 * 1024)

uint8_t heap[HEAP_SIZE];

void *_sbrk(int inc)
{
	static uint8_t *hend;
	uint8_t *prev;

	if (hend == 0)
		hend = heap;

	prev = hend;
	hend += inc;

	return prev;
}

//void heap_init(void)
//{
	// what to do...
//}

//uint32_t heap_available(void)
//{
//	return HEAP_SIZE - offset;
//}

/*void *malloc(uint32_t size)
{
	void *alloc = &heap[offset];
	offset += size;
	return alloc;
}

void *calloc(uint32_t count, uint32_t size)
{
	//uint32_t total = count * size;
	//void *alloc = hmalloc(total);
	//for (uint32_t i = 0; i < total; i++)
	//	((uint8_t *)alloc)[i] = 0;
	//return alloc;

	// calloc broke
	return malloc(count * size);
}

void free(void *ptr)
{
	(void)ptr;
}*/