Message-ID:	<36DDC82A.B973BDBA@unb.ca>
Date:	Wed, 03 Mar 1999 19:39:23 -0400
From:	Endlisnis <s257m AT unb DOT ca>
X-Mailer:	Mozilla 4.04 [en] (Win95; U)
MIME-Version:	1.0
Newsgroups:	comp.os.msdos.djgpp
To:	djgpp AT delorie DOT com
Subject:	Re: (Problem with structs)
References:	<36DDBF84 DOT 438669BC AT solutions2000 DOT net>
X-Info:	BrunNet, Inc. 888-278-6638
Reply-To:	djgpp AT delorie DOT com

Nehru Juman wrote:

> I'm having a problem with a program I took directly from a c++ book ("A
> Beginners C++) which involves writing structs to disk.  Since it comes
> from the book I assume it should work.  I wrote a simplified program to
> isolate the problem.  Can anybody tell me why the below code doesn't
> work properly:

[snip]

> alpha beta[20]={{10,"abcd"},{20,"efgh"},{30,"ijkl"},                   ^^
note the 10.[snip]

>      gDataFile.open("testfile.my",ios::in|ios::out);

    The problem is with the DOS implimentation of "newline"s.  In DOS, a
'newline' is represented as CR, LF (13,10).  And for fstream to write text
files that standard text editors can read, any time you try to write byte
value 10, a byte value 13 is written as well.  You can override this in the
open line:
     gDataFile.open("testfile.my",ios::in|ios::out|ios::binary);
    That fixes the problem (I tried it, and it works).
--
     (\/) Endlisnis (\/)
          s257m AT unb DOT ca
          Endlisnis AT GeoCities DOT com
          Endlisnis AT BrunNet DOT Net
          Endlisnis AT HotMail DOT com

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