From: Endlisnis <s257m AT unb DOT ca>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: File Access in C++ with DJGPP using ifstream
Date: Wed, 8 Jul 1998 15:30:18 -0300
Organization: University of New Brunswick
Lines: 27
Message-ID: <Pine.SOL.3.96.980708152515.16907D-100000@sol.sun.csd.unb.ca>
References: <6nul97$pnk$1 AT news DOT minn DOT net>
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On Tue, 7 Jul 1998, minn.net wrote:
->I am trying to port over some code I wrote for Borland C++ 5.0 to djgpp C++
->but all of my file objects do not read from my files properly.  I am looking
->for code examples of file access in djgpp C++ so I can compare my code to
->it.  I am also looking for any page that discusses C++ with djgpp, so far
->all I can find is plain C.
	I've actually made a pcx loader in BC++v5, and then ported it into
DJGPP fine.  The only thing you might have to worry about is variable
allignment.  And make sure you are opening it in binary mode, although;
you need to do that in BC++v5 also.  Try adding "__attribute__((packed))"
to your definitions of your structs.  That will force it to leave no slack
space.

#include <fstream.h>
struct {
 char a;
 int b __attribute__((packed));
void main()
{
 char Stuff[100];
 fstream File("filename.ext",ios::in|ios::binary);
 File.read(stuff,100);
 }

	Endlisnis
[I have a pyramid of wingyness]