This is not an error. The changes of struct block* b = (struct block*)ptr - 1; to struct block *b = (struct block *)((char *)ptr - BLOCK_SIZE); adds more text to parse for the compiler and just looks ugly. Both do the same thing.
In my_custom_free there's an error on line number 232 for the statement if (b == last). The last global variable was not updated prior to that statement, which in turn the statement will…
In the find_best_fit function on line number 111. There's a null pointer error. In the statement `if (!best_fit
There's an additional ALIGN16 macro function call in fragment_block function which is unnecessary.
I noticed on line #34 there's an issue. You've done s += BLOCK_SIZE;. This not ideal and should only hold the size of data the memory block contains, not including the memory block header.…
Seems a alignment of 16 bytes is indeed required of x64 architectures.
Ideally our target should be for both x86 and x64. Just for your operating system and embedded hardware.
14d4e0ee67
Fixed forward defragmenting, added reverse defragmenting, and added a line break on second printf.