gistfile1.md

So we've got our struct. Imagine augmenting it with a bool called mark:

struct Foo {
  bool mark;
  int data_size;
  char[] data;
}

So we can walk through the pool of Foos that begins at buffer and ends at end:

while (iter < end) {
  Foo *block = (Foo *)iter;
  printf(“I’ve got a block of size %d. She is %s. She encodes: %s.”, 
         block->size, block->mark ? "marked" : "not marked", block->data);
  iter += sizeof(struct Foo) + block->size;
}

Imagine I wanted to compact this buffer, removing all the structs which have mark == false...