Gpc July 2001

gpc@gnu.de

41 participants
71 discussions

StringUtils, FileUtils
by Frank Heckenbach 31 May '02

31 May '02

Hi, in the current GPC version, I've included a StringUtils unit for general string handling routines (on a higher level than the built-in and RTS routines). Up to now, it only contains routines for a string hash table, but I'm planning to add some more routines. Perhaps some of you also have some routines to contribute (or features to request). Conditions for inclusion into this unit should be, IMHO: - Generally useful (not meant specifically for a certain program or something), - self-contained (not relying on an external library etc.), - new functionality compared to the existing routines (whereas the same or similar functionality under a different interface for compatibility purposes should go into other units, like GPCUtil for compatibility to `Turbo Power' units), - and, of course, compilable with the current GPC version, portable, bug-free, etc. ;-) The same goes for the FileUtils unit which has been there for some months already. Frank -- Frank Heckenbach, frank(a)g-n-u.de, http://fjf.gnu.de/ GPC To-Do list, latest features, fixed bugs: http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html

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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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operators pow and **
by Maurice Lombardi 01 Feb '02

01 Feb '02

Hi all, It seems that operators pow and ** cannot be redefined in gpc. Is that expected ? I work with djgpp / w98 dos box (should be irrelevant I think) Thanks Maurice -- Maurice Lombardi Laboratoire de Spectrometrie Physique, Universite Joseph Fourier de Grenoble, BP87 38402 Saint Martin d'Heres Cedex FRANCE Tel: 33 (0)4 76 51 47 51 Fax: 33 (0)4 76 51 45 44 mailto:Maurice.Lombardi@ujf-grenoble.fr

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16 bit sets?
by Sven Jauring 31 Jul '01

31 Jul '01

Hi, I'm working in a project, where I need to compile old pascal code using GPC (beta 20010201). The code is scattered with variable types, that depends on bit correlations in unions. E.g: ******************************** type INT0_255 = packed 0..255; BITS = (BIT0,BIT1,BIT2,BIT3, BIT4,BIT5,BIT6,BIT7, BIT8,BIT9,BIT10,BIT11, BIT12,BIT13,BIT14,BIT15); var VARIABLE1 : record case int16 of 0: (WORD: INTEGER); 1: (MSB: INT0_255; LSB: INT0_255); 2: (BT : set of BITS); end; ********************************* In order for this declaration to function properly, I seem to need the possibility to specify 'BT' to be just 16 bits, and not 32 bits, which seems to be default. I tried to find out from the manual if this is possible. I found the following passages: "The Extended Pascal features still missing from GPC are ..., set types with variable bounds, ..." and "Planned features: Other types... *sparse sets; sets of arbitrary types ?? ???" For me, this is pretty deep water, so I won't take offence if you tell me to RTFM, but never the less... My question is this: Can it be done in the latest release (20010623) or should I wait for someone to implement this feature? Best Regards Sven Jauring

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no gpcpp ?
by Oliver Kullmann 28 Jul '01

28 Jul '01

Hi, on the search for an ISO 7185 compliant compiler I found gpc, which I have installed in Suse 7.2 Linux, however, trying to compile something doesn't work: gpc: installation problem, cannot exec `gpcpp': No such file or directory Now I have no idea what to do (the documentation does not say something about that (at least I didn't find it)). Can somebody help?! Thanks in any case! Oliver

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module/unit interface `Crt' could not be imported
by Miguel Pérez E 27 Jul '01

27 Jul '01

Hello, sorry if this is a trivial question. I´m trying to compile the folloing program: program DateTimeDemo; uses DOS, CRT ; var ano, mes, dia, numdia : word; begin GetDate(ano, mes, dia, numdia); WriteLn('Current date is: ' + ano)); readkey; end. and gpc cannot find CRT and DOS, but these units are present. The output of compilations this: C:\DJGPP\src>gpc dosuntes.pas --unit-path="c:\djgpp\lib\gcc-lib\djgpp\2.953\unit s" -v Reading specs from c:/djgpp/lib/gcc-lib/djgpp/2.953/specs gpc version 20010623, based on 2.95.3 20010315/djgpp (release) c:/djgpp/lib/gcc-lib/djgpp/2.953/gpcpp.exe -lang-pascal -v -famtmpfile=c:/djgpp /tmp\ccaaaaaa -funit-path=c:\djgpp\lib\gcc-lib\djgpp\2.953\units -fdelphi-commen ts -D__GNU_PASCAL__ -undef -D__GNUC__=2 -D__GNUC_MINOR__=95 -D__GPC__=2 -D__GPC_ MINOR__=0 -D__GPC_RELEASE__=20010623 -D__BITS_LITTLE_ENDIAN__=1 -D__BYTES_LITTLE _ENDIAN__=1 -D__WORDS_LITTLE_ENDIAN__=1 -Dunix -Di386 -DGO32 -DDJGPP=2 -DMSDOS - D__OS_DOS__=1 -D__unix__ -D__i386__ -D__GO32__ -D__DJGPP__=2 -D__MSDOS__ -D__OS_ DOS__=1 -D__unix -D__i386 -D__GO32 -D__DJGPP=2 -D__MSDOS -Asystem(unix) -Asystem (msdos) -Acpu(i386) -Amachine(i386) -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -D__tune_pentium__ -imacros c:/djgpp/lib/djgpp.ver -remap dosuntes.pa s c:/djgpp/tmp\cccaaaaa GNU Pascal Compiler PreProcessor version 20010623, based on gcc-2.95.3 20010315/ djgpp (release) (80386, BSD syntax) #include "..." search starts here: #include <...> search starts here: c:/djgpp/lang/pascal c:/djgpp/include /usr/local/include c:/djgpp/i586-pc-msdosdjgpp/include c:/djgpp/lib/gcc-lib/djgpp/2.953/include c:/djgpp/include End of search list. c:/djgpp/lib/gcc-lib/djgpp/2.953/gpc1.exe c:/djgpp/tmp\cccaaaaa -quiet -dumpbas e dosuntes.pas -version -famtmpfile=c:/djgpp/tmp\ccaaaaaa -funit-path=c:\djgpp\l ib\gcc-lib\djgpp\2.953\units -o c:/djgpp/tmp\ccdaaaaa GNU Pascal version 2.95.3 20010315/djgpp (release) (djgpp) compiled by GNU C ver sion 2.95.3 20010315/djgpp (release). GNU Pascal version is actually 20010623, based on gcc-2.95.3 20010315/djgpp (rel ease) dosuntes.pas:34: module/unit interface `Dos' could not be imported How can I get it working? Thank you in advance Miguel Pérez E Development Engineer Primestone E-Mail: miguel.perez(a)primestone.com Tel: (571) 6265432 Fax: (571) 6156377

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bug in string concatenation ?
by Maurice Lombardi 27 Jul '01

27 Jul '01

Hello This is the smallest program which displays the bug program bug; var s:string[255]=''; begin s:=s+'a'; s:=s+'b'; end. It works fine apparently. But by stepping with a debugger, I see that after each string concatenation the stack is increased by 16 bytes. No harm in usual programs since the stack is released at each exit of procedure by something like mov %ebp,%esp But in a procedure which was computing 80*480 bytes and concatenating them to strings, the increase in stack size by 16*80*480=614400 bytes overflowed the default djgpp stack size of 512k, producing weird crashes. As a workaround I increased the stack size of course, but the bug should be solved. The bug is present with or without optimization options, both on my work computer: djgpp v2.03, gpc-20010623 based on gcc-2.95.3, binutils 2.11.2, W98se dos box, and on my home computer djgpp v2.03, gpc-20010315 based on gcc-2.95.2, binutils 2.9.5.1, bare dos 6.23 The first step would be to try on a linux machine to see if it is a problem of gpc or djgpp. I have none at hand presentlly. Hope this helps Maurice -- Maurice Lombardi Laboratoire de Spectrometrie Physique, Universite Joseph Fourier de Grenoble, BP87 38402 Saint Martin d'Heres Cedex FRANCE Tel: 33 (0)4 76 51 47 51 Fax: 33 (0)4 76 51 45 44 mailto:Maurice.Lombardi@ujf-grenoble.fr

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Gnu Pascal on Palm?
by Heuristx＠Yahoo.com 26 Jul '01

26 Jul '01

Hi, Sorry if this is an silly or old question - I'm new to Gnu Pascal and I haven't found anything about this in the archives or the FAQ... The Gnu Pascal intro lists operating systems for which we can compile it, but then it states, 'and more...' It also says that Gnu Pascal can be compiled on any device that supports the Gnu C. Now, there is a cross-platform Gnu C compiler that works on Windows but compiles for the Palm OS. Does it mean that it's possible to make a Pascal compiler for the Palm? I haven't heard anything about it, but it would be the most significant news since Gnu C for the Palm itself... Even if it has to run on the Palm device, it would open up some interesting possibilities. Steve Philipp _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

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install-gpc-binary : gpc: cannot execute
by Anuradha 26 Jul '01

26 Jul '01

Hello, The gpc is formed after a lot of changes in the script .But it gives an error "gpc: cannot execute" Can you kindly tell me why it happens. Thanks and Regards, Anu frank(a)g-n-u.de wrote: > Kocherlakota Harikrishna wrote: > > > I downloaded the binary file gpc-19990118.sparc-sun-solaris2.6.tar.gz > > for my solaris 2.6 machine and unpacked it as given. > > Then i tried to compile simple pascal program. > > The following error is seen : > > "Installation problem. Cannot execute gpc-cpp" > > GPC binaries must be installed exactly in the directory they were > compiled for. If the archive contains absolute paths, it means you > have to extract it from the root directory (/). > > If this isn't possible (you're not the sysadmin, or don't want to), > see the script > ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/alpha/binary/install-gpc-binary > > Frank > > -- > Frank Heckenbach, frank(a)g-n-u.de, http://fjf.gnu.de/ > GPC To-Do list, latest features, fixed bugs: > http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html -- S.Anuradha Generic Data Tools, Alcatel Chennai. Alcanet : 2-757-7123

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about serial communciations
by Miguel Pérez E 26 Jul '01

26 Jul '01

Hello, I am new to GPC but I have experience with Delphi. There I use Turbopower´s Async library to do serial communications. Can I use that library with GPC?. Can you show me a simple program that demonstrates serial communications? or where do I get it? Thank you in advance. Miguel Pérez E Development Engineer Primestone E-Mail: miguel.perez(a)primestone.com Tel: (571) 6265432 Fax: (571) 6156377

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Gpc July 2001