/*
========================
Z_CheckHeap
========================
*/
void Z_CheckHeap (void)
{
	memblock_t	*block;
	
	for (block = mainzone->blocklist.next ; ; block = block->next)
	{
		if (block->next == &mainzone->blocklist)
			break;			// all blocks have been hit	
		if ( (byte *)block + block->size != (byte *)block->next)
			Sys_Error ("Z_CheckHeap: block size does not touch the next block");
		if ( block->next->prev != block)
			Sys_Error ("Z_CheckHeap: next block doesn't have proper back link");
		if (!block->tag && !block->next->tag)
			Sys_Error ("Z_CheckHeap: two consecutive free blocks");
	}
}