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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> |
NNTP-Posting-Host: | bvb.lstm.ruhr-uni-bochum.de |
Mime-Version: | 1.0 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
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 ************************************************************* * Thomas Demmer * * Lehrstuhl fuer Stroemungsmechanik * * Ruhr-Uni-Bochum * * Universitaetsstr. 150 * * D-44780 Bochum * * Tel: +49 234 700 6434 * * Fax: +49 234 709 4162 * * http://www.lstm.ruhr-uni-bochum.de/~demmer * ************************************************************* : +49 234 700 6434 * * Fax: +49 234 709 4162 * * http://www.lstm.ruhr-uni-bochum.de/~demmer * *************************************************************
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