ref: 1e3dd27b9b1dcd2c8f16a0f51effaade0e12c227
dir: /lib/c/src/malloc.h/
#include <stdlib.h> /* minimum amount of required units */ #define NALLOC 10000 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 *hp);