Gpc March 1999

gpc@gnu.de

11 participants
17 discussions

Files
by berend＠beard.nest.nl 01 Feb '02

01 Feb '02

* Moved (from: gpc) by Berend de Boer using timEd 1.10.b3+. Peter Gerwinski wrote in a message to Berend de Boer: PG> I tried to use Extended Pascal "binding" to assign a file PG> variable to an external -- existing -- file. I just copied PG> the "Assign" pro- cedure by Berend as published in PG> borland2ep.doc. It does not always work: I often get a PG> runtime error saying that the file did not exist. If you can repeat it, compile with another Extended Pascal compiler, for example Prospero's one. If that fails too, there is really something wrong with the code. But I suspect gpc. You're using which OS? Groetjes, Berend (-: fido: 2:281/527.23 email: berend(a)beard.nest.nl

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GNU Binary for SGI
by Oliver Puetz 03 Jun '99

03 Jun '99

Hi, I've downloaded the binary beta "gpc-19990118_mips-sgi-irix6_2_tar.gz" from ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/beta/binary/, as I'm not really familiar with unix. It should run on a SGI, Power-Challenge-XL12 with IRIX64 v6.2. GCC v2.7 is already installed. The environmental variable GPC_EXEC_PREFIX does not seem to work, setting the dir with -B as a command option helps. By compiling a little test program (no uses etc) a fatal error occured: ld32: FATAL 9: I/O error (-lgpc): No such file or directory I've copied the files from /gpc/usr/local/lib/gcc-lib/mips-sgi-irix6.2/2.8.1 into the bin-dir, but it doesn't helped. Can anyone help or had made experiences with this version? Thanks in advance Oliver -- Oliver Puetz Tel.: 0234-700-2982 Lehrstuhl fuer Fluidenergiemaschinen Fax.: 0234-7094-358 Ruhr-Universitaet Bochum, Universitaetsstr. 150, 44801 Bochum opuetz(a)fem.ruhr-uni-bochum.de Gebaeude IB 4/141 www.ruhr-uni-bochum.de/www-public/volgmwbr/mitarb/puetz.htm

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Re: Bug in the arithmetics
by Frank Heckenbach 28 Mar '99

28 Mar '99

Miklos Cserzo wrote: > > Can you just send the correct results? Of course, we could try to > > compute them ourselves, but I suppose you already have them handy. > > Sure, possibly I should do so at the first time. > > More info: The program scans the input twice. First it computes the > central point of the vector space (average vector) and than it supposed to > report the distance of the individual vectors from it during the second > scan. The first phase is correct with the beta version but in the second > phase all the distances are 0. This is nonsense of course. I am not > absolutely sure whether it is an arithmetic bug. It could be anything in > the second 'repeat' cycle. I'll take a look at it in a few days, unless Peter finds out something before. BTW, was your compiler cross-built by any chance? ISTR that cross-building can cause problems with floating point operations. > Unfortunately the -g option is not able to > produce binaries on IRIX 6.2 so I can not debug the code. However, the > same code on the same input works fine if I use the 2.0 version of the > compiler. By the way, is the -g works on different platforms? More or less. It usually works, but it can cause compiler errors in some situations. In general, it can't handle well those things that don't exist in C, i.e. it might produce wrong debugging info or compiler errors. Any volunteers who know about the internals of debugging info? (I don't.) Meanwhile you could try "Writeln debugging", i.e. insert some Writeln's here and there to pin down the instruction that's wrong. BTW, the results are correct under Linux, so it really seems to be something system-specific. Frank -- Frank Heckenbach, frank(a)fjf.gnu.de http://fjf.gnu.de/ PGP and GPG keys: http://fjf.gnu.de/plan

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Re: Bug in the arithmetics
by Frank Heckenbach 28 Mar '99

28 Mar '99

I think I sent this already, but it didn't come back to me. Sorry if someone gets this twice. Miklos Cserzo wrote: > > Can you just send the correct results? Of course, we could try to > > compute them ourselves, but I suppose you already have them handy. > > Sure, possibly I should do so at the first time. > > More info: The program scans the input twice. First it computes the > central point of the vector space (average vector) and than it supposed to > report the distance of the individual vectors from it during the second > scan. The first phase is correct with the beta version but in the second > phase all the distances are 0. This is nonsense of course. I am not > absolutely sure whether it is an arithmetic bug. It could be anything in > the second 'repeat' cycle. I'll take a look at it in a few days, unless Peter finds out something before. BTW, was your compiler cross-built by any chance? ISTR that cross-building can cause problems with floating point operations. > Unfortunately the -g option is not able to > produce binaries on IRIX 6.2 so I can not debug the code. However, the > same code on the same input works fine if I use the 2.0 version of the > compiler. By the way, is the -g works on different platforms? More or less. It usually works, but it can cause compiler errors in some situations. In general, it can't handle well those things that don't exist in C, i.e. it might produce wrong debugging info or compiler errors. Any volunteers who know about the internals of debugging info? (I don't.) Meanwhile you could try "Writeln debugging", i.e. insert some Writeln's here and there to pin down the instruction that's wrong. BTW, the results are correct under Linux, so it really seems to be something system-specific. Frank -- Frank Heckenbach, frank(a)fjf.gnu.de http://fjf.gnu.de/ PGP and GPG keys: http://fjf.gnu.de/plan

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Re: Bug in the arithmetics
by Frank Heckenbach 25 Mar '99

25 Mar '99

Miklos Cserzo wrote: > The attached code compiles and runs on the attached sample input file but > the result is incorrect. (Under IRIX 6.2, latest beta source.) The program > supposed to calculate vector distance in a multi dimensional space. The > same code is working fine with the 2.0 version on the same input file. Can you just send the correct results? Of course, we could try to compute them ourselves, but I suppose you already have them handy. Frank -- Frank Heckenbach, frank(a)fjf.gnu.de http://fjf.gnu.de/ PGP and GPG keys: http://fjf.gnu.de/plan

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Bug in the arithmetics
by Miklos Cserzo 24 Mar '99

24 Mar '99

Muchachos! The attached code compiles and runs on the attached sample input file but the result is incorrect. (Under IRIX 6.2, latest beta source.) The program supposed to calculate vector distance in a multi dimensional space. The same code is working fine with the 2.0 version on the same input file. Cheers, miklos

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-g on IRIX
by Miklos Cserzo 23 Mar '99

23 Mar '99

Hi Folks, the debug-option (-g) of the latest beta-kit is broken under IRIX 6.2. It is not able to produce binaries. Cheers, miklos

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gcc sources
by Paulo Tomé 22 Mar '99

22 Mar '99

Hello. For the gpc installation I need gcc 2.7.2.1 sources. Where can I get them? Regards. Paulo Tomé

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Re: gcc sources
by Peter Gerwinski 22 Mar '99

22 Mar '99

Hello! Paulo TomÃ© wrote: > For the gpc installation I need gcc 2.7.2.1 sources. > Where can I get them? >From any GNU mirror. But I recommand to get gpc-19990118 from ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/beta/ instead. It works with gcc-2.8.1 or egcs-1.1.1 and is more stable than gpc-2.0 anyway. Hope this helps, Peter -- Peter Gerwinski, Essen, Germany, http://home.pages.de/~Peter.Gerwinski/ Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - gpc-19990118 PGP key on request - 6C 94 45 BE 28 A4 96 - 0E CC E9 12 47 25 82 75 *** Vote against SPAM! ********* http://www.politik-digital.de/spam/ ***

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GPC newsgroup and announce list?
by Peter Gerwinski 17 Mar '99

17 Mar '99

Hi, folks! A long time ago we already had discussed about this, but let us try it again ... It seems as if people looking for help with GPC do not find this mailing list, and even if they do, they might not want to subscribe but would prefer to have a look at us first. Other people would like to stay up-to-date with information about GPC but are not interesting in our discussions. So what about following the example of the DJGPP folks and do the following: * Create a Usenet newsgroup `comp.lang.pascal.gnu'. * Gate all emails to the GPC mailing list to the newsgroup and vice versa. * Create an additional, moderated mailing list especially for GPC announcements. This could be combined with a move of the GPC mailing list to a host which runs a list server software (majordomo) which would simplify subscribing and unsubscribung to the mailing list, allow for an automatic online list archive, etc. (I have one with the nice domain name `gnu.de'.:-) What do you think? We also would be glad if someone familiar with Usenet management (RfD, CfV, etc.) and/or setting up a mail/news gateway could take that job. Peter -- Peter Gerwinski, Essen, Germany, http://home.pages.de/~Peter.Gerwinski/ Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - gpc-19990118 PGP key on request - 6C 94 45 BE 28 A4 96 - 0E CC E9 12 47 25 82 75 *** Vote against SPAM! ********* http://www.politik-digital.de/spam/ ***

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Gpc March 1999