From: djberg96@... (Daniel Berger)
Date: 2004-11-25T01:08:00+09:00
Subject: Re: Correct File.size

Tomas Brixi <tomas_brixi@yahoo.com> wrote in message news:<20041124111513.50696.qmail@web41502.mail.yahoo.com>...
> Hello,
> 
> how do I get a correct size of file larger than 4GB?
> File.size( "filename" ) alway return some negative number. It seems to be some integer overflow.
> I use latest rubyinstaller.rubyforge.org  instalation package on winxpsp2
> 
> Regards
> 
> Tom

I don't know why we can't get 64bit support for Windows.  This bit of
C code works fine:

#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>

//_INTEGRAL_MAX_BITS

int main()
{
   char* filename = "C:\\delete_this\\big_file.txt";
   struct _stati64 buf;
   unsigned __int64 result;

   result = _stati64( filename, &buf );

   if( result != 0 )
   {
      perror( "Problem getting information" );
   }
   else
   {
      printf( "File size     : %lu\n", buf.st_size );
   }

   return 0;
}

See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/pgalpha98/html/int64.asp

I'll probably just implement File.size in the win32-file package,
using GetFileSizeEx() until this works as it should.

Regards,

Dan