Gpc March 1997

gpc@gnu.de

17 participants
53 discussions

Bug in GPC?!
by Sven Engelhardt 29 Mar '97

29 Mar '97

Hi all, I'm writing a somewhat larger Program accessing a mysql-Database. via a C-Library. Config: Linux 2.0.29, gpc-2.0 linux-elf latest binary release... It contains some Records with Pointers to them and an TSQL-Object. And everthing works fine and sizeof(TSQL) is 368 or so (probably correct). Now I want to insert another Object Type, say TResult. Just declared the Object Type like this: {-----------------------------} Type TResult = object k:PChar; procedure init; end; {-----------------------------} Thus some strange SIGSEGV's occur running the program. I inserted WriteLn(SizeOf(TSQL)) which now returns 1. Remember: I didn't access anything new. I really only DECLARED that new type. I tried to track down the Problem to only a few lines of code, but everything runs fine. So now i'm a little bit braindead, i didn't find not even a workaraound (Coding the same without Objects works by now, but I really want to have these objects for oversight and portability reasons) So i deleted some stuff from my prog to put it in a little Testprog, wich consists of about 200 lines. I will mail this at request, but you will need mysql to compile. nb: I 've been noticed some "fatal signals 11" in some cases of syntactic failures. (Quick responses appreciated.) Thanx in advance Sven Engelhardt

1 0

Problems with gpc
by Peter Gerwinski 26 Mar '97

26 Mar '97

According to Pedro Quaresma de Almeida: > I have installed GNU Pascal compiler, apparently without any > problem. > > bash# dpkg -i gpc_2.0-3.deb > (Reading database ... 23654 files and directories currently installed.) > Preparing to replace gpc (using gpc_2.0-3.deb) ... > Unpacking replacement gpc ... > Setting up gpc ... > > bash# dpkg -i libgpc2_2.0-3.deb > (Reading database ... 23654 files and directories currently installed.) > Preparing to replace libgpc2 (using libgpc2_2.0-3.deb) ... > Unpacking replacement libgpc2 ... > Setting up libgpc2 ... > bash# ldconfig This looks like a Debian distribution. I didn't know that there exists a Debian distribution of gpc-2.0 ... > but when I try to use it ... > > bash$ gpc Ackerman.p > ld: cannot open -lgpc: No such file or directory > bash$ Obviously, the `gpc' driver program cannot locate the library `libgpc.a'. >From the installation log I have the impression that you did not install `libgpc.a' but a file named `libgpc2.a'. Perhaps both are the same, and it suffices to link `libgpc.a' to `libgpc2.a' in your `/usr/lib/' directory or whereever you keep your libraries? In any case it should solve your problems (without warranty, of course ;-) to install an "original" binary distribution of gpc-2.0 like those on ftp://kampi.hut.fi/jtv/gnu-pascal/binary/ We provide at binaries for i586-linux (elf), i586-linuxaout, and i586-linuxoldld. The "i586" means that some optimization have been done for the Pentium; the compiler runs fine on an i486 or 80386 and can produce code for all of these processors. To install such a binary package, cd to the top directory and "tar xzf" the archive, e.g. myhost:/# tar xzf /usr/src/gpc-2.0.i586-linux.tar.gz Good luck, Peter Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski(a)uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201] maintainer GNU Pascal - http://home.pages.de/~gnu-pascal/ [970125]

3 3

GPC and UNIX Curses
by Peter Gerwinski 25 Mar '97

25 Mar '97

According to Ronald Perrella: > There are two name in Curses that are different only > by their capitalization. One is a variable declared as extern. > The other is a function. Use the `asmname' directive to access them. Their *Pascal* names must of course differ. > example: > > /* in C */ > extern int COLORS; > > extern int colors(); > > (* in Pascal *) Var ColorVar: __asmname__ 'COLORS' Integer; Function ColorFunc: Integer; asmname 'colors'; Sorry for the underscores and the different syntax for variables and functions. I already suggested to replace `asmname' with something like `external name', Var ColorVar: Integer; external name 'COLORS'; Function ColorFunc: Integer; external name 'colors'; but I did not yet work on this. (See the GPC list archives, starting with 7 Sep 1996, for a discussion about pros and contras for different ideas for the syntax for external name specification.) Hope this helps, Peter Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski(a)uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201] maintainer GNU Pascal - http://home.pages.de/~gnu-pascal/ [970125]

1 0

Terve...
by Peter Gerwinski 25 Mar '97

25 Mar '97

According to Morgan Kurtto: > Haluaisin koittaa ohjelmointia. > Onko Gnu Pascal aloittelioille? > Olen kuullut ett=E4 Pascal olisi helppo kieli ja hyv=E4. > Toivoisin ett=E4 saisin vastauksen. > T: Morgan Kurtto > Ruotsi Sorry, but I do not understand what you mean. (Which languages is this? Finnish?) For information about GNU Pascal, see our WWW home page, http://home.pages.de/~GNU-Pascal/ especially the FAQ. Hope this helps, Peter Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski(a)uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201] maintainer GNU Pascal - http://home.pages.de/~gnu-pascal/ [970125]

1 0

GPC and UNIX Curses
by Ronald Perrella 25 Mar '97

25 Mar '97

HI, I have tried to interface GPC with the Curses system and I am running into a problem with names: There are two name in Curses that are different only by their capitalization. One is a variable declared as extern. The other is a function. example: /* in C */ extern int COLORS; extern int colors(); (* in Pascal *) var COLORS : integer; {can I do this???} procedure colors;c; I am trying to interface GPC to Curses but I don't know how to pull this one off. Help! -- Ronald Perrella perrella(a)mindspring.com Roswell, Georgia, USA.

1 0

Re: Variable number of parameters
by Berend de Boer 22 Mar '97

22 Mar '97

You wrote: >BTW, what about conformant arrays? Do they work with GPC, or are >there >still bugs? Somebody out there to write some documentation notes >about >conformant arrays to tell the poor Borland Pascal programmers (like >me;) >how to use them? Here a sample (gpc: Internal compiler error: program gpc1 got fatal signal 11) program TestConformantArrays; procedure Test1(var a: array[j..k: integer] of real); var i: integer; begin for i := j to k do a[i] := 0.0; end; var a1: array[0..9] of real; begin Test1(a1); end. Groetjes, Berend.

1 0

Terve...
by Morgan Kurtto 21 Mar '97

21 Mar '97

Haluaisin koittaa ohjelmointia. Onko Gnu Pascal aloittelioille? Olen kuullut että Pascal olisi helppo kieli ja hyvä. Toivoisin että saisin vastauksen. T: Morgan Kurtto Ruotsi

1 0

Problems with gpc
by Pedro Quaresma de Almeida 21 Mar '97

21 Mar '97

Hi == I have installed GNU Pascal compiler, apparently without any problem. bash# dpkg -i gpc_2.0-3.deb (Reading database ... 23654 files and directories currently installed.) Preparing to replace gpc (using gpc_2.0-3.deb) ... Unpacking replacement gpc ... Setting up gpc ... bash# dpkg -i libgpc2_2.0-3.deb (Reading database ... 23654 files and directories currently installed.) Preparing to replace libgpc2 (using libgpc2_2.0-3.deb) ... Unpacking replacement libgpc2 ... Setting up libgpc2 ... bash# ldconfig but when I try to use it ... bash$ gpc Ackerman.p ld: cannot open -lgpc: No such file or directory bash$ can you help me? Thanks. -- At\'e breve =========== Pedro Quaresma de Almeida Departamento de Matem\'atica Faculdade de Ci\^encias e Tecnologia Universidade de Coimbra P-3000 COIMBRA, PORTUGAL e-mail: pedro(a)mat.uc.pt url: http://www.mat.uc.pt/~pedro/

1 0

Forward decl
by Stephen Lindholm 21 Mar '97

21 Mar '97

I seem to be having trouble with the forward attrbute for procedures. The problem is intermittant and I can't narrow it down very easily to a short test rogram. Has anyone else had this difficulty? I'll continue trying to see examtly what's wrong. (It could be a problem on my end.)

1 0

Re: Two bugs
by Peter Gerwinski 20 Mar '97

20 Mar '97

According to Tomas Srb: > procedure Gogo(S:String; var SOut:Str255); > begin > WriteLn(' Before Error '); > SOut:='aha'; { ! ?GPC runtime error: runtime error (#-1) ! } > WriteLn(' After Error '); > end; Indeed! Thank you for the report; I will gogo and hunt this bug ... > [...] > S:=Gogo(S); { ! No one call Gogo bat three calls ! } > WriteLn(I); { ! I=3 I!=0 } That's strange because this bug was fixed *before* gpc-2.0 was released; it was present in gpc-1.2 or before. I cannot reproduce it with my current development version, so this bug should disappear when you take a current alpha version of GPC. Look at ftp://agnes.dida.physik.uni-essen.de/gnu-pascal/alpha/ Hope this helps, Peter Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski(a)uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201] maintainer GNU Pascal - http://home.pages.de/~gnu-pascal/ [970125]

1 0

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

1996

1995

Gpc March 1997