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From: ld AT jasmine DOT netrix DOT com (Long Doan)
Subject: Re: Packed structs
Lines: 27
Sender: news AT netrix DOT com
Reply-To: ld AT netrix DOT com
Organization: Netrix Corporation
References: <DD5MGr DOT 8AE AT jade DOT mv DOT net>
Date: Mon, 14 Aug 1995 12:22:40 GMT
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Dj-Gateway: from newsgroup comp.os.msdos.djgpp

In article <DD5MGr DOT 8AE AT jade DOT mv DOT net> "A.Appleyard" <A DOT APPLEYARD AT fs2 DOT mt DOT umist DOT ac DOT uk> writes:

>   If I have this struct:-
> typedef struct{char miaow; int mice_caught,birds_caught; char*name;} cat;
>   and it needs to be packed, i.e. the fields starting at bytes 0, 1, 5, 9, and
> the whole struct exactly 13 bytes long with no extra bytes inserted to fill
> out to a multiple of 2 or 4, should I insert `__attribute__((packed))' after
> `cat', or before any `;' where djgpp would otherwise be tempted to insert
> filling bytes, or where?

Try:
typedef struct {
  char  miaow        __attribute__ ((packed));
  int   mice_caught  __attribute__ ((packed));
  int   birds_caught __attribute__ ((packed));
  char *name         __attribute__ ((packed));
} cat;

Hope that helps,
Long.
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Long Doan                                        ld AT netrix DOT com     
Netrix Corporation                         ldoan1 AT osf1 DOT gmu DOT edu
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