Xref: news2.mv.net comp.os.msdos.djgpp:5723
From: Joern Sierwald <Sierwald AT tu-harburg DOT d400 DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: [_dos_]find{first|next} problem!
Date: Mon, 08 Jul 1996 13:50:53 +0200
Organization: Technische Universitaet Hamburg-harburg
Lines: 58
Message-ID: <31E0F61D.78D0@tu-harburg.d400.de>
References: <836737189 DOT 11199 DOT 0 AT abwillms DOT demon DOT co DOT uk>
NNTP-Posting-Host: hp25.rz.tu-harburg.de
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Alaric B. Williams wrote:
> 
> Say, does anyone have any idea why:
> 
>    ffblk _ffblk;
>    int result = findfirst("*.PPM",&_ffblk,FA_ARCH | FA_RDONLY |
> FA_HIDDEN | FA_SYSTEM);
>    while(!result) {
>       colours(_ffblk.ff_name);
>       result = findnext(&_ffblk);
>       ah.sprites++;
>    }

> and
 
>    find_t _ffblk;
>    wh.length = 0;
>    int result = _dos_findfirst("*.RES",_A_ARCH | _A_RDONLY,&_ffblk);
>    while(!result) {
>       puts(_ffblk.name);
>       wh.length++;
>       result = _dos_findnext(&_ffblk);
>    }
 
> /BOTH/ give filenames with the first two characters missing???
 
 <snip>
> The same code worked fine in DJGPP v1.x, but fails in the latest v2
> from SimTel...
> 
> Thanx,

> Alaric B. Williams Internet : alaric AT abwillms DOT demon DOT co DOT uk
> <A HREF="http://www.hardcafe.co.uk/Alaric/">http://www.hardcafe.co.uk/Alaric/</A>

This is a long known bug in gcc 2.7.2. The C++ part of the compiler doesn't pack the
ffblk correctly. The C part works fine. Please edit the header file with the
ffblk and insert a 

#pragma pack(1)
struct...
#pragma pack()

pragma pack pair around the struct.

Enjoy!

Joern
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