Message-ID: <360191FF.26756BBF@gmx.net>
Date: Thu, 17 Sep 1998 22:49:35 +0000
From: Robert Hoehne <robert DOT hoehne AT gmx DOT net>
Organization: none provided
MIME-Version: 1.0
To: DJ Delorie <dj AT delorie DOT com>
CC: djgpp-workers AT delorie DOT com
Subject: Re: snapshot 980907
References: <199809172022 DOT QAA18219 AT indy DOT delorie DOT com>
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DJ Delorie wrote :
> 
> No, I mean I ran patch and it failed.  The diff doesn't match the
> sources any more.  Could you re-do it against the latest snapshot?

Ah!!

Now I found also, why patch failed. I silently assumed,
that you had already applied the other patch which handles
the check for NULL _before_ the 'BLOCK *b' is initialized.

Now I included this fix also and here is now the patch:

*** src/libc/ansi/stdlib/malloc.c~	Sun Jun 28 22:14:04 1998
--- src/libc/ansi/stdlib/malloc.c	Thu Sep 17 22:42:38 1998
***************
*** 326,344 ****
  void *
  realloc(void *ptr, size_t size)
  {
!   BLOCK *b = (BLOCK *)((char *)ptr-4);
    char *newptr;
    int copysize;
  
    if (ptr == 0)
      return malloc(size);
  
!   copysize = b->size;
!   if (size <= b->size)
    {
  #if 0
!     if (b->size < 2*MIN_SAVE_EXTRA
! 	|| (size >= b->size-512 && size >= b->size/2))
  #endif
        return ptr;
      copysize = size;
--- 326,345 ----
  void *
  realloc(void *ptr, size_t size)
  {
!   BLOCK *b;
    char *newptr;
    int copysize;
  
    if (ptr == 0)
      return malloc(size);
  
!   b = (BLOCK *)((char *)ptr-4);
!   copysize = b->size & ~1;
!   if (size <= copysize)
    {
  #if 0
!     if (copysize < 2*MIN_SAVE_EXTRA
! 	|| (size >= copysize-512 && size >= copysize/2))
  #endif
        return ptr;
      copysize = size;
***************
*** 347,353 ****
    newptr = (char *)malloc(size);
  #if DEBUG
    printf("realloc %d %d/%08x %08x->%08, %d\n",
! 	 size, b->size, b, ptr, newptr, copysize);
  #endif
    memcpy(newptr, ptr, copysize);
    free(ptr);
--- 348,354 ----
    newptr = (char *)malloc(size);
  #if DEBUG
    printf("realloc %d %d/%08x %08x->%08, %d\n",
! 	 size, b->size & ~1, b, ptr, newptr, copysize);
  #endif
    memcpy(newptr, ptr, copysize);
    free(ptr);