ref: 08a32f26c08c322c5549b94c05032d2e87f1df3c
dir: /src/libc/stdlib/malloc.h/
/* minimum amount of required units */
#define NALLOC 16
typedef union header Header;
union header {
struct hdr {
Header *next;
size_t size;
} h;
/* most restrictive type fixes the union size for alignment */
_ALIGNTYPE most;
};
extern void *_prevchunk(Header *);