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Date: Sat, 22 May 2004 22:54:07 -0400
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: ftruncate64() question?
Message-ID: <20040523025407.GA5586@coe.bosbc.com>
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On Sat, May 22, 2004 at 04:24:22PM -0400, Bill C. Riemers wrote:
>> What's wrong with ftruncate?
>
>ftruncate fails with files larger >= 2GB because off_t gets interpreted as
>32 bit signed integer...

  bash-2.05b$ cat off_t.c
  #include <sys/types.h>
  #include <stdio.h>
  int
  main (int argc, char **argv)
  {
    printf ("sizeof(off_t) = %d\n", sizeof(off_t));
    exit (0);
  }

  bash-2.05b$ ./off_t
  sizeof(off_t) = 8

>I can find some archived cygwin messages referencing bug fixes to
>ftruncate64 in the cygwin.dll.  However, using ftruncate64 results in an
>unresolved symbol.

You don't use ftruncate64.  You use ftruncate.  Cygwin is 64 bit by default.

>In fact based on those messages, I inserted the following code in my
>program as a workaround for a truncate64() function:

How about referencing these messages so we'd have some clue as to what
you're talking about?

cgf

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