Function internal_mspace_realloc

dlmalloc/dlmalloc.c:5076–5098

}

static void* internal_mspace_realloc(mspace msp, void* oldmem, size_t bytes, int cpymem) {
  if (oldmem == 0)
    return mspace_malloc(msp, bytes);
#ifdef REALLOC_ZERO_BYTES_FREES
  if (bytes == 0) {
    mspace_free(msp, oldmem);
    return 0;
  }
#endif /* REALLOC_ZERO_BYTES_FREES */
  else {
#if FOOTERS
    mchunkptr p  = mem2chunk(oldmem);
    mstate ms = get_mstate_for(p);
#else /* FOOTERS */
    mstate ms = (mstate)msp;
#endif /* FOOTERS */
    if (!ok_magic(ms)) {
      USAGE_ERROR_ACTION(ms,ms);
      return 0;
    }
    return internal_realloc(ms, oldmem, bytes, cpymem);
  }
}

void* mspace_realloc(mspace msp, void* oldmem, size_t bytes)
{