From:	Thomas Demmer <demmer AT LSTM DOT Ruhr-UNI-Bochum DOT De>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: GDB and extended type
Date:	Tue, 18 Nov 1997 13:37:15 +0100
Organization:	Lehrstuhl fuer Stroemungsmechanik
Lines:	28
Message-ID:	<34718BFB.D4C245D@LSTM.Ruhr-UNI-Bochum.De>
References:	<199711180544 DOT VAA11183 AT adit DOT ap DOT net> <64rp1e$1s5 AT news DOT u-strasbg DOT fr>
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To:	djgpp AT delorie DOT com
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Pierre Muller wrote:
[...]
>    Anyway I changed the size of long double to 10 bytes
> my EXTENDED type defined by the compiler is also 10 bytes long
> but I still don't get the values printed out.
> 
>    debugging GDB with itself and setting a breakpoint at extract_floating
> I saw that sizeof(DOUBLEST) is 12 instead of 10,
> but I have no idea from were this comes from !!

Just a wild guess: Memory alignment. Variables are
aligned to a 4 Byte boundary, so if you use an extended in
a struct, it eats 12 Bytes. 

-- 
Ciao
Tom

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* Thomas Demmer                                             *
* Lehrstuhl fuer Stroemungsmechanik                         *
* Ruhr-Uni-Bochum                                           *
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* Fax: +49 234 709 4162                                     *
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