Gpc

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5400 discussions

Re: BP 7.0 compatibility
by Frank Heckenbach 23 Sep '99

23 Sep '99

Adam Naumowicz wrote: > Hello, > I found some information on the official web pages of your project, > that the compiler 'completely' supports Borland Pascal syntax. Trying > to compile some old BP 7.0 sources with GPC I noticed that the compiler > knows nothing about SetTextBuf declared in BP system unit I suppose. Thanks for the report. As Peter said, such a routine is not really necessary in GPC because GPC files do their own buffer management. But I will add a do-nothing SetTextBuf procedure to the System unit. BTW, the reason why I missed it was that I looked through BP's system.pas pseudo-unit to see what was missing, and for some reason they call the procedure `BufferText' there, so I didn't see SetTextBuf... 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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question
by michael paap 22 Sep '99

22 Sep '99

hello, i forward you the following question from the fernuni-hagen-pascalnewsgroup: Carsten Simon wrote: > > Hallo, > > ich bin gerade dabei einige Beispiele nachzuprogrammieren (Ãbung macht > den Meister...). Ich arbeite unter LINUX mit GNU-Pascal fÃ¼r LINUX. > Bisher hatte ich eigentlich keine groÃen Probleme mit dem Compiler > (Aufruf: gpc --standard-pascal --pedantic -g -o). Nun habe ich aber > ein Feld mit dem component type boolean deklariert. Bei der spÃ¤teren > Zuweisung eines boolean-Wertes zu einer indizierten Variablen (wie > z.B. Kurs 1612 Bsp. 4.2.1.7) meckert mich der Compiler wie folgt an: > 'cannot convert to a boolean type'. Den gleichen Quellcode mit dem > SPAR-Compiler auf bonsai - kein Problem. > > Ist das ein prinzipielles GNU-Pascal-Problem, mit dem ich mich > abfinden muÃ, oder gibt es da einen Trick? michael -- michael: michael paap, ICQ: 7024000 homepage: http://www.dj-koeln.de/michael/index.html

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BP 7.0 compatibility
by Adam Naumowicz 22 Sep '99

22 Sep '99

Hello, I found some information on the official web pages of your project, that the compiler 'completely' supports Borland Pascal syntax. Trying to compile some old BP 7.0 sources with GPC I noticed that the compiler knows nothing about SetTextBuf declared in BP system unit I suppose. Is there any equivalent for that procedure or maybe it is contained in some other unit ? Or maybe the job to make GPC with -fBorlanf-Pascal switch to act like BP on basic stage is not completed ? Adam Naumowicz -------------------------------------- email: adamn(a)math.uwb.edu.pl WWW : http://math.uwb.edu.pl/~adamn/ --------------------------------------

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two questions about GPC
by michael paap 21 Sep '99

21 Sep '99

hello, i would like to know two things: 1. is it right, that gps is not compatible to standardpascal in this respect, that it does not look for the right part of a statement like the below, if the first part is true? if (j > a) or (i[b] > a) then ... so that there will be no mistake, if in the example (j > a) is true and b is out of border of the definition of the arrayindex of i[]? 2. what does the option --pedantic do? michael paap -- michael: michael paap, ICQ: 7024000 homepage: http://www.dj-koeln.de/michael/index.html * homepage der jungenschaft kÃ¶ln: http://www.dj-koeln.de/index.html * die kohtenrunde: http://www.dj-koeln.de/kohtenrunde/index.html * inhaltsverz. jugendbewegter websites: http://www.dj-koeln.de/jbinhalt/index.html

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Re: Several questions on GPC
by Frank Heckenbach 21 Sep '99

21 Sep '99

"Alex" wrote: > Hello, > > I've several questions on Gnu Pascal: > I'd like to use the CRT-Unit in Gnu Pascal. How is it possible? The only > procedure I need is RANDOM (CLRSCR would be nice too, but isn't necessary). > > How can I do it? Just get a current GPC version (beta 19990118 or alpha 19990813) and install either the ncurses library (for Unix system on terminals -- note that ncurses is already installed by default on most Unix systems, including most Linux distributions) or the PDCurses library (for Unix, X11 versions, and for Dos systems). These libraries (source and binaries for some platforms) are available from ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/libs/ Then, just add `uses CRT;' to your program, and don't forget the `--automake' command line parameter. BTW, Random is not part of the CRT unit -- it's built into the compiler in current GPC versions. 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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Several questions on GPC
by Alex 20 Sep '99

20 Sep '99

Hello, I've several questions on Gnu Pascal: I'd like to use the CRT-Unit in Gnu Pascal. How is it possible? The only procedure I need is RANDOM (CLRSCR would be nice too, but isn't necessary). How can I do it? Thanks, Alex

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Re: Is it a bug ?
by Frank Heckenbach 16 Sep '99

16 Sep '99

Emmanuel Chaput wrote: > I have a problem with gpc on a sun sparc. A simple program like > this crashes the compiler (with gpc1 receiving a sig 11) : > > program foo; > begin > writeln(round(3.1)) > end. > > Note that round(x) works fine. A debugger told me that in function > expand_fix from file optabs.c, GET_MODE (from) was used with > from = 0. > > I then discovered in file p/rts.c that there were differences between > > how trunc and round were implemented. So I tried to change the > "case p_ROUND" in that file. That is I changed > > retval = fold(build1(... > > into > > retval = convert(long_long_integer_type_node, val); > > And it seems to work ! > > Could someone explain this to me ? Did I make something wrong ? > Or is this the good way to correct the bug ? I think you made Round work like Trunc now!? What does `Round (2.8)' say? It should, of course, say 3, but after your patch, doesn't it say 2? Frank PS: Are you subscribed to the list now? I'm CCing you a copy, just in case not... 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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Is it a bug ?
by Emmanuel Chaput 16 Sep '99

16 Sep '99

Hi ! I have a problem with gpc on a sun sparc. A simple program like this crashes the compiler (with gpc1 receiving a sig 11) : program foo; begin writeln(round(3.1)) end. Note that round(x) works fine. A debugger told me that in function expand_fix from file optabs.c, GET_MODE (from) was used with from = 0. I then discovered in file p/rts.c that there were differences between how trunc and round were implemented. So I tried to change the "case p_ROUND" in that file. That is I changed retval = fold(build1(... into retval = convert(long_long_integer_type_node, val); And it seems to work ! Could someone explain this to me ? Did I make something wrong ? Or is this the good way to correct the bug ? Thanks a lot ... -- E. Chaput *5 61 58 82 10 Emmanuel.Chaput(a)enseeiht.fr ENSEEIHT, DÃ©pt TÃ©lÃ©com & RÃ©seaux

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Re: GPC on Solaris 2.6
by Frank Heckenbach 16 Sep '99

16 Sep '99

Tom Schneider wrote: > > I've put the patch into the official sources, but inactivated by > > `#if 0'. So, all you've got to do is activate the patch before > > compiling future GPC versions. > > Ok, great! That solves one problem. (Though I don't know how to "activate a > patch" other than just patch or download the source again.) Since it's in the sources, starting from the next release, all you'll have to do is replace `#if 0' by `#if 1'... Frank PS: No need to CC me a copy. Since I'm subscribed to the list, I'm getting your mail twice... -- 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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Script install-gpc-binary uploaded
by Frank Heckenbach 16 Sep '99

16 Sep '99

Hi, due to recent needs, I wrote a little script to simplify the installation of a GPC *binary* distribution into *another* directory than it was intended. To explain the situation: The gpc executable uses some files (e.g. the preprocessor gpc-cccp, the actual compiler gpc1 and the runtime library libgpc.a) which are usually stored in a directory <prefix>/lib/gcc-lib/<target>/<version>/. The <prefix>, i.e. the base directory for the GPC installation, can be specified while building GPC, and is then hard-coded into the gpc executable. When using gpc, it can be overridden with a `-B' option (for gpc-cccp and gpc1) and a `-L' option (for libgpc.a). The purpose of the install-gpc-binary script is just to create another script which calls gpc with those two options (in addition to any options given on the command-line). It examines the installed GPC binary distribution to find out the correct directories. The script created will be called gpc, and should be in the PATH, while the actual gpc executable should not be in the PATH, so calling `gpc' will invoke the script. Then, `gpc' can be used just like a gpc installed in the normal way, which is quite useful for using third-party Makefiles etc. Who needs this script? Those who get a binary distribution of GPC and don't install it into the right directory. These are usually not PC (including Linux) users, because most of them have root access and can install GPC into the right directory. There are also usually not system administrators of multi-user machines (who have root access and usually will prefer to build their software themselves, anyway). So, these are e.g. users on multi-user machines who can't convince their admins to install GPC for them, or just need it quickly, and/or don't have enough space in their home to build GPC... How to use it? - Get a GPC binary for your system, and the install-gpc-binary script. The script is available in the same FTP directories on agnes as the GPC binaries, i.e.: ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/beta/binary/install-gpc-binary ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/alpha/binary/install-gpc-binary - Unpack the GPC binary into any directory (but don't move it around after running the script). - Change into its "base" directory -- e.g. if the archive unpacks into usr/local/bin/..., usr/local/lib/..., etc. (below the current directory), change into usr/local, or move the contents of usr/local up to the current directory. In any case, the bin and lib directories should now be subdirectories of the current directory (the script will make sure this was done correctly). - Run this script and answer a few simple questions. - That's all. If you set your $PATH appropriately, you can now invoke `gpc' in the normal way. Frank -- Frank Heckenbach, frank(a)g-n-u.de http://fjf.gnu.de/ PGP and GPG keys: http://fjf.gnu.de/plan

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