Function node_from_offset

system/lib/libcxxabi/src/fallback_malloc.cpp:94–96

static heap_node* freelist = NULL;

heap_node* node_from_offset(const heap_offset offset) {
  return (heap_node*)(heap + (offset * sizeof(heap_node)));
}

heap_offset offset_from_node(const heap_node* ptr) {
  return static_cast<heap_offset>(