Re: [fpc-pascal] Best method to uninstall fpc and lazarus
Le Sep 2, 2008 à 12:12 PM, Paul a écrit : The uninstall steps on the wiki at http://wiki.freepascal.org/OS_X_Programming_Tips#Uninstalling_Lazarus_and_Free_Pascal rm -fv $bin/ppcppc shows permission denied Didn't test all subsequent items sudo rm -f /usr/local/bin/ppcppc -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Installing on Mac OS X
Le Sep 1, 2008 à 2:58 PM, Paul a écrit : /usr/local/bin/ppc386 it'wasn't listed in the dropdown box. I closed Lazarus (still open from yesterday) and now I can't find lazarus anymore. I understood that I have to add the directories manually in a console application or terminal, a return to the DOS age. You should not compare DOS and a Terminal :) I need to get a book using OS X first, because this leads to nowhere. It won't be before weekend though. Anyway, while Lazarus was open, I saw bugs in the editor: the last character of each line was written over the previous character. Form = class(TFor) instead of Form=class(TForm) en; instead of end; Looks like a bug .. Paul - Original Message - From: Jonas Maebe [EMAIL PROTECTED] To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org Sent: Monday, September 01, 2008 11:02 AM Subject: Re: [fpc-pascal] Installing on Mac OS X On 31 Aug 2008, at 18:52, Paul wrote: Now I get Free Pascal compiler not found when Lazarus starts although it exists. Check the Compiler path in Environment-Environment Options. It should read something like /usr/local/bin/ppc386 -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC 2.3.1 on Mac OS X?
Le Aug 30, 2008 à 1:25 PM, Paul a écrit : Hi, I've read that there are some issues with FPC 2.2.0 on Mac OSX. Is it save to install version 2.3.1 already ? I use FPC from the snapshots (http://snapshots.lazarus.shikami.org/lazarus/ ) so it is fpc 2.2.2 and it really works fine for me (it is the latest stable version). The last time I checked there were still issues with generics however it is not something absolutely needed -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Mac OS X api cals
Le Aug 28, 2008 à 10:55 PM, Paul a écrit : However, as a bank, they only trust on themselves. And they like to reinvent a broken wheel :) exactly :-) they also like many custom features .. Just in case you really really want to remake the world, here is a link which may help you : http://developer.apple.com/documentation/GraphicsImaging/Conceptual/QuartzDisplayServicesConceptual/Articles/MouseCursor.html#/ /apple_ref/doc/uid/TP40004269 -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Mac OS X api cals
Le Aug 29, 2008 à 10:55 PM, Damien Gerard a écrit : Le Aug 28, 2008 à 10:55 PM, Paul a écrit : However, as a bank, they only trust on themselves. And they like to reinvent a broken wheel :) exactly :-) they also like many custom features .. Just in case you really really want to remake the world, here is a link which may help you : http://developer.apple.com/documentation/GraphicsImaging/Conceptual/QuartzDisplayServicesConceptual/Articles/MouseCursor.html#/ /apple_ref/doc/uid/TP40004269 http://developer.apple.com/documentation/GraphicsImaging/Reference/Quartz_Services_Ref/Reference/reference.html#/ /apple_ref/c/func/CGDisplayModelNumber -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Mac OS X api cals
Le Aug 28, 2008 à 9:29 AM, Jonas Maebe a écrit : On 28 Aug 2008, at 08:11, Paul wrote: http://developer.apple.com/documentation/Security/Conceptual/authorization_concepts thanks for these links, wonder why this site was not listed the mac developer forums .. A lot depends on who, how and where you asked. And developer.apple.com is the very first site you get when googling for mac programming or apple programming. To be honest, I also thought you already knew about that site, but simply did not know what exactly to look for there (e.g., authorization vs administrator rights).. And he can of course also look at the source code of existing VNC servers, e.g. http://sourceforge.net/projects/osxvnc/ see my other reply It does not mean that your client can't simply enable a local VNC server, open a https tunnel to the server and simply tunnel VNC over this connection. Of course, no one can stop you from reimplementing everything, but it's probably going to be quite a bit of work (as such low level things are quite platform specific). Indeed -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Mac OS X api cals
Le Aug 28, 2008 à 10:26 AM, Paul a écrit : I was not suggesting to tunnel over your server, but to your server. Your server already contains a control infrastructure. If you'd go this route, your server would translate your proprietary protocol into VNC commands and back. Depending on the complexity of your protocol, this may be easier or harder than re- implementing and maintaining your entire client (which, as far as I understand, is mostly equivalent to a VNC server but using a different protocol) on the Mac side. That would be almost impossible: a session is running with 8 https clients communicating to the server. The server has to have certificate that can be checked continuously at the certificate authority. It's a complete different model than all existing software and is mainly used by large enterprise clients. Some need a very high secutity level (banks) and we even need to write special servers for them. Believe me: they won't take VNC for an answer. I don't see the problem if you use a good and strong VPN. If was the case in my last job and we worked for a bank. Paul -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Mac OS X api cals
Le Aug 28, 2008 à 8:09 PM, Jonas Maebe a écrit : On 28 Aug 2008, at 09:26, Paul wrote: That would be almost impossible: a session is running with 8 https clients communicating to the server. The server has to have certificate that can be checked continuously at the certificate authority. It's a complete different model than all existing software and is mainly used by large enterprise clients. Some need a very high secutity level (banks) and we even need to write special servers for them. Believe me: they won't take VNC for an answer. I really don't see the problem. Your client software would obviously be doing all the certificate checking and the customers don't have to know whether it's vnc or your proprietary protocol underneath. There are simply two separate things: a) software to let a remote user control a local computer b) secure transmission and authentication of the commands etc between the server and the local computer Now, a) can be done with vnc b) can be done by tunneling the vnc data stream over as many https connections as you want, which are authenticated as often and wherever you want, using your client software. I.e., the client software can simply be a secure proxy for a vnc data stream (breaking it up and sending different kinds of packets over different https connections or whatever). Of course, if you need to be able to do things that the vnc protocol itself does not support, that would be another matter (but I haven't seen that being mentioned). However, as a bank, they only trust on themselves. And they like to reinvent a broken wheel :) -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Re: Socket library for Mac OS X
Le Aug 28, 2008 à 9:49 PM, Paul a écrit : Ok thanks, I'll try it also, I'm still waiting for my Mac though, so for the moment I can't test anything at all :-( In the worst case you can install Darwin in a VMWare on your win/nux distrib to make tests. It will be exactly the same, however without the GUI and the DMG installer won't work, but you can easily do it without it. Paul - Original Message - From: Mattias Gaertner [EMAIL PROTECTED] To: fpc-pascal@lists.freepascal.org Sent: Thursday, August 28, 2008 9:44 PM Subject: Re: [fpc-pascal] Re: Socket library for Mac OS X On Thu, 28 Aug 2008 20:57:22 +0200 Paul [EMAIL PROTECTED] wrote: I've asked the Synapse list and since Lukas is answering on the list but got no answer, I assumed it wouldn't work. He has no Mac so he can not test it. It's also listed on his website/l only Windows and Linux. No one tested it yet carefully. I only use some ftp and http things. So maybe some things don't work. What has to changed to use it with Mac OS X then ? Not much. It uses the FPC socket unit which exists on many platforms. In my old version I had to replace the 'IFDEF Linux' with 'IFDEF Unix' and to add a few 'libc' calls. Maybe the new version has fixed that. Mattias ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Socket library for Mac OS X
Le Aug 27, 2008 à 1:06 PM, Paul a écrit : Are there any socket library's available for Mac OSX with FPC? I need Https communication TIA lNet works very well on OS X, and I prefer it instead of Synapse (http://lnet.wordpress.com/blog/ ) -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Mac OS X api cals
Le Aug 26, 2008 à 3:49 PM, Paul a écrit : Hi, i want to port one of my Delphi applications to Mac OS X. Before I start (don't even have a Mac yet), I need to know if it's possible at all. It's a client side part of a remote admin program. For this program, I need to control the system and get info about the system like: - check if user has admin rights It is an UNIX env. So admin rights is nearly meaningless. However the `id` command should help you - get a list of available screenresolutions and change it - inject keypresses and stuff like that ... Instead of reinventing the wheel you should use the Apple Remote Desktop or a VNC client (I recommend you a SSH tunnel) OS X Leopard provides a VNC Server http://lifehacker.com/software/how-to/remote-control-leopard-with-tightvnc-319528.php It is the *recommended* way I've asked in Mac-forums, but no one seems to be able to answer it. When I mentioned FreePascal, I've got no reply's at all anymore. Talking about closed communities Does anyone knows where to get this information ? TIA, Paul -- Damien Gerard [EMAIL PROTECTED] Si ces robots s'humanisaient, inversement les êtres humains se robotiseraient-ils ? ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Translate C to Pascal
Le Jul 30, 2008 à 10:37 PM, Lourival Mendes a écrit :
I would do something like this:
C
struct product {
int weight;
float price;
} ;
product apple;
-
Pascal
Type
product = record
weight: Integer ;
price: double;
end;
Var
apple: product ;
This is the reason that I do believe that is missing something on
the code:
struct a;
A C-struct is merely a record. A struct with methods is a class.
struct Foo
{
Foo() : tag(0) {}
int tag;
void compute() {...}
};
would be
class Foo
private
FTag: Integer;
public
constructor Create;
procedure compute;
property tag: Integer read FTag write FTag;
end;
the property is not really needed of course.
--
Damien Gerard
[EMAIL PROTECTED]
Si ces robots s'humanisaient, inversement les êtres humains se
robotiseraient-ils ?
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Re: [fpc-pascal] Re: FPC 2.2.1 on Mac OS X
Le Jun 5, 2008 à 8:11 AM, Karl-Michael Schindler a écrit : Hallo Am 4. Jun 2008 um 09:56 schrieb Damien Gerard: Le Jun 4, 2008 à 8:51 AM, Karl-Michael Schindler a écrit : I only noticed now the discussion on the mailing list about fpc 2.2.1 and lazarus on Mac OS X. As the maintainer of the .info files of fpc and lazarus I should probably lay out my ideas about the future. The next step is fpc 2.2.2. It should resolve some of the issues in a clean way and enable to remove some workarounds as well as serve as a solid base for a lazarus installation. When this is settled, I will extend lazarus in the following way: 1) create so-called splitoffs, so there will be separate packages for lazarus-gtk1, lazarus-aqua and when ready lazarus-gtk2. Then the user can simply choose the best interface for his situation. This can be done, whatever the default setting of LCLPLATFORM will be. 2) create double clickable Lazarus applications with links in / Applications/Fink. Please not Fink. Put only Lazarus.app as it already exists (Carbon widgetset) into /Applications/ (through an installer since it installs FPC too). I do not really understand this. Fink is not suppossed to install anything anywhere else than in the /sw/... tree and /Applications/ Fink. Direct installations into /Applications are the matter of the .dmg based packages, which is a different way not related to fink. How do you use fink for your work with freepascal and lazarus? I don't use Fink. I use MacPort, which is far better from my point of view (actually more up-to-date than Fink, especially when there is a major system update). -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Re: FPC 2.2.1 on Mac OS X
Le Jun 5, 2008 à 2:09 PM, Jonas Maebe a écrit : On 05 Jun 2008, at 09:50, Damien Gerard wrote: Le Jun 5, 2008 à 8:11 AM, Karl-Michael Schindler a écrit : Hallo Am 4. Jun 2008 um 09:56 schrieb Damien Gerard: Please not Fink. Put only Lazarus.app as it already exists (Carbon widgetset) into /Applications/ (through an installer since it installs FPC too). I do not really understand this. Fink is not suppossed to install anything anywhere else than in the /sw/... tree and /Applications/ Fink. Direct installations into /Applications are the matter of the .dmg based packages, which is a different way not related to fink. How do you use fink for your work with freepascal and lazarus? I don't use Fink. I use MacPort, which is far better from my point of view (actually more up-to-date than Fink, especially when there is a major system update). Michael creates the fink info files for the FPC distribution via fink. If you don't use fink, it won't affect you. So no problem at all :) It seems I did not understand it was a Fink only package. Sorry for the disagreement -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Re: FPC 2.2.1 on Mac OS X
Le Jun 5, 2008 à 3:32 PM, Vincent Snijders a écrit : Felipe Monteiro de Carvalho schreef: On Thu, Jun 5, 2008 at 3:11 AM, Karl-Michael Schindler [EMAIL PROTECTED] wrote: How do you use fink for your work with freepascal and lazarus? I think that the question is that using fink shouldn't be necessary to install the Carbon based Lazarus. It could be deployed like any other native application, in a .dmg disk image with a .app application bundle, which can be moved to /Applications Most people would like to avoid fink if possible, but maybe you have a compeling reason to use it instead of the standard install method for native applications Fink could be useful for the compiler. The compiler is not installed under /Applications. Snapshots don't use Fink as far I know and it works well on my laptop. That's why I was talking about an installer, mostly to install FPC. But I think it could be install in the same directory of Lazarus like it is done under Windows. By the way, I don't know if it is a good idea, but the install dir may be /Developper/Applications/Lazarus instead of /Applications, like XCode and others dev tools. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Re: FPC 2.2.1 on Mac OS X
Le Jun 4, 2008 à 8:51 AM, Karl-Michael Schindler a écrit : Hi I only noticed now the discussion on the mailing list about fpc 2.2.1 and lazarus on Mac OS X. As the maintainer of the .info files of fpc and lazarus I should probably lay out my ideas about the future. The next step is fpc 2.2.2. It should resolve some of the issues in a clean way and enable to remove some workarounds as well as serve as a solid base for a lazarus installation. When this is settled, I will extend lazarus in the following way: 1) create so-called splitoffs, so there will be separate packages for lazarus-gtk1, lazarus-aqua and when ready lazarus-gtk2. Then the user can simply choose the best interface for his situation. This can be done, whatever the default setting of LCLPLATFORM will be. 2) create double clickable Lazarus applications with links in / Applications/Fink. Please not Fink. Put only Lazarus.app as it already exists (Carbon widgetset) into /Applications/ (through an installer since it installs FPC too). A remaining question is about the code base I will use for lazarus. The best solution would clearly be that lazarus 0.9.26 comes out shortly before i am ready and so I could base in on that. If not, I would submit versions based on plain 0.9.24 as a first step. Depending on the conditions then, one could consider an intermediate 0.9.25 version. What is the status of the aqua version? Is 0.9.24 good enough at least as a start until 0.9.26 is ready or is it absolutely necessary to include the fixes since 0.9.24? Best wishes - Michael. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Hash table with different kind of key
Le Jun 2, 2008 à 11:48 AM, Damien Gerard a écrit : Le Jun 2, 2008 à 11:29 AM, Florian Klaempfl a écrit : Damien Gerard schrieb: Hi ! Is there somewhere hash tables with different kind of keys and if possible different kind of values ? Like in C++ actually with a std::map. May be it would be possible with fpc 2.2.2 and generics ? fgl.TFPGMap My hero ! Thanks :) However it seems I have to wait for FPC 2.2 -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Hash table with different kind of key
Hi ! Is there somewhere hash tables with different kind of keys and if possible different kind of values ? Like in C++ actually with a std::map. May be it would be possible with fpc 2.2.2 and generics ? -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Hash table with different kind of key
Le Jun 2, 2008 à 11:29 AM, Florian Klaempfl a écrit : Damien Gerard schrieb: Hi ! Is there somewhere hash tables with different kind of keys and if possible different kind of values ? Like in C++ actually with a std::map. May be it would be possible with fpc 2.2.2 and generics ? fgl.TFPGMap My hero ! Thanks :) -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC scripting suport
Le May 28, 2008 à 12:00 PM, MihaiR a écrit : Hello all, Is there any component for FPS/Lazarus I can succesfully use for scripting? LUA is very powerfull. I used it in my app for months and it works very well. I'd like to build an application that can be enhanced by some simple functions stored into an external script file so that functions can be edited. There are simple functions with few parameters and which return the result to the main application. It is something like VAT calculation: main (compiled application send price to the script function and script function returns the VAT value). Of course this is a simplified example, on my situation there are many functions and I want one function to have configurable formula content. Thank you very much. Best regards, Mihai -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC scripting suport
Le May 28, 2008 à 12:30 PM, Henry Vermaak a écrit : 2008/5/28 Damien Gerard [EMAIL PROTECTED]: Le May 28, 2008 à 12:08 PM, Michael Van Canneyt a écrit : Remobjects PascalScript works with FPC. (it used to be innerfuse pascal) Just for my information does it work under Linux *and* OS X ? i386 linux and win32. powerpc-darwin also works. Is i386-darwin planned ? -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC scripting suport
Le May 28, 2008 à 12:08 PM, Michael Van Canneyt a écrit : On Wed, 28 May 2008, MihaiR wrote: Hello all, Is there any component for FPS/Lazarus I can succesfully use for scripting? I'd like to build an application that can be enhanced by some simple functions stored into an external script file so that functions can be edited. There are simple functions with few parameters and which return the result to the main application. It is something like VAT calculation: main (compiled application send price to the script function and script function returns the VAT value). Of course this is a simplified example, on my situation there are many functions and I want one function to have configurable formula content. Remobjects PascalScript works with FPC. (it used to be innerfuse pascal) Just for my information does it work under Linux *and* OS X ? -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC 2.2.0 / SegF in threads
Le May 15, 2008 à 11:55 PM, mm a écrit : Damien Gerard a écrit : Le May 15, 2008 à 8:46 PM, Luca Olivetti a écrit : I don't know about gdb, but I know that you have to be extremely careful with exceptions in a thread, since any uncaught exception will silently terminate it. It is actually the point of my problem. Is there any way to avoid this behavior ? Because without GDB you are not aware that a thread has just exited. Your program has to catch all the exceptions. I wrote a small demo for NX (see on my web site) that is called nx_demo_thread. It is very simplistic regarding thread management but it could help you to see how this program catches the exceptions. Oki I see you use a double try statement in the execute method. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] FPC 2.2.0 / SegF in threads
Le May 15, 2008 à 8:46 PM, Luca Olivetti a écrit : El Thu, 15 May 2008 10:45:43 +0200 Damien Gerard [EMAIL PROTECTED] escribió: I have a program in lazarus with a thread . When there is a SegF in this thread it exits without notifying GDB. So the error is silent even with GDB (Windows/Linux/OSX) I have to wrap it like this : try .. except RaiseGDBException(...) end; May I miss something like an option to enable, since the error is caught by the try..except statement ? I don't know about gdb, but I know that you have to be extremely careful with exceptions in a thread, since any uncaught exception will silently terminate it. It is actually the point of my problem. Is there any way to avoid this behavior ? Because without GDB you are not aware that a thread has just exited. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Pointer address into string
Hi ! I would like to display in a lazarus application the address of a pointer. For this, I use : var s: string; p:pointer; [...] s := IntToStr(PtrInt(p)) However, I've got a warning (hint) from the compiler : Conversion between ordinals and pointers is not portable What is the way to do this ? -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Pointer address into string
Le May 5, 2008 à 5:10 PM, ik a écrit : Look at the Format function, you can tell it to display the address of a pointer in a string. Thanks ! -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] pascal on macbook
Le Apr 25, 2008 à 4:10 PM, George R Smith a écrit : Felipe, Thank you for your reply. Do you have a Intel or PowerPC machine? And what kind of software do you wish to develop? I have not purchased the machine yet, looking at the MacBook with 4 meg of memory. I do not want to buy a laptop that runs Microsoft, trying to get away from them. I am a developer and have two Solaris boxes and two windows boxes, this machine is just for my own enjoyment. I would like to program personal stuff while watching TV. Just want to make sure I can use Java or Pascal (prefer Pascal) before I spend the 2,000 plus dollars. For java, this should be familiar to you : http://developer.apple.com/java/ For Pascal, it seems that the terminal is already a closed friend and fpc works very well under Darwin. Vim/Emacs are enough to make programs using fpc. If you need an IDE, Lazarus (with the Carbon Interface) for OS X becomes to be good for working with it (and native Cocoa bindings are on the way) Moreover, with a MacBook, you can use VMWare for emulating a Linux, SunOS (x86) or even Windows. It is a delight for Cross-platform programs. Thanks again and anything else you wish to add I do appreciate it. George ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Looking for a Firebird book?
Le Apr 9, 2008 à 9:02 AM, Graeme Geldenhuys a écrit : Hi, Anybody know of a Firebird book I can purchase? Language needs to be in English. I'm looking for something that covers the SQL syntax, DB tuning and importantly, security. The latter is one major issue I have with Firebird. It's security model is very different to MS SQL Server, and I'm struggling to find information on how I should implement my applications with Firebird security. Does their documentation not suitable to you ? From MSSQL To Firefird http://www.firebirdsql.org/manual/migration-mssql.html Books http://www.ibphoenix.com/main.nfs?a=ibphoenixpage=ibp_publications -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Generics
I would like to make a generic class, like this :
{$mode objfpc}
generic TMCollection_T = class(TObject)
private
FDefaultItem: _T; // line 35
public
constructor Create;
destructor Destroy;override;
[...]
end;
But I have got the following :
commons.pas(35,21) Error: Identifier not found _T
commons.pas(35,21) Error: Error in type definition
commons.pas(39,34) Error: Identifier not found _T
commons.pas(44,84) Error: Identifier not found _T
According to the documentation, I should use `var private`, but I have
got :
Compiling ./commons.pas
commons.pas(33,3) Error: VAR and TYPE are allowed only in generics
commons.pas(35,21) Error: Identifier not found _T
Could someone tell me where I am wrong ?
Thanks !
--
Damien Gerard
[EMAIL PROTECTED]
Intelligence is 10 million rules.
-- Douglas Lenat
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Re: [fpc-pascal] Generics
Le Mar 31, 2008 à 3:20 PM, ik a écrit :
After you define the generic you must first create a type for it:
type
TMyMcollection = specialize TMCollectionString;
Sorry but it did not change anything.
Additionally, I would prefer to define the specialization in another
unit.
And use the TMyMcollection.
It seems like hard work, but it is much better then the way it look on
a bad C++ and Java code :)
:)
Ido
On Mon, Mar 31, 2008 at 4:00 PM, Damien Gerard
[EMAIL PROTECTED] wrote:
I would like to make a generic class, like this :
{$mode objfpc}
generic TMCollection_T = class(TObject)
private
FDefaultItem: _T; // line 35
public
constructor Create;
destructor Destroy;override;
[...]
end;
But I have got the following :
commons.pas(35,21) Error: Identifier not found _T
commons.pas(35,21) Error: Error in type definition
commons.pas(39,34) Error: Identifier not found _T
commons.pas(44,84) Error: Identifier not found _T
According to the documentation, I should use `var private`, but I
have
got :
Compiling ./commons.pas
commons.pas(33,3) Error: VAR and TYPE are allowed only in generics
commons.pas(35,21) Error: Identifier not found _T
Could someone tell me where I am wrong ?
Thanks !
--
Damien Gerard
[EMAIL PROTECTED]
Intelligence is 10 million rules.
-- Douglas Lenat
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[EMAIL PROTECTED]
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-- Douglas Lenat
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Re: [fpc-pascal] Generics
Le Mar 31, 2008 à 3:00 PM, Damien Gerard a écrit :
I would like to make a generic class, like this :
{$mode objfpc}
generic TMCollection_T = class(TObject)
private
FDefaultItem: _T; // line 35
public
constructor Create;
destructor Destroy;override;
[...]
end;
But I have got the following :
commons.pas(35,21) Error: Identifier not found _T
commons.pas(35,21) Error: Error in type definition
commons.pas(39,34) Error: Identifier not found _T
commons.pas(44,84) Error: Identifier not found _T
According to the documentation, I should use `var private`, but I
have got :
Compiling ./commons.pas
commons.pas(33,3) Error: VAR and TYPE are allowed only in generics
commons.pas(35,21) Error: Identifier not found _T
Could someone tell me where I am wrong ?
Thanks !
I forgot : fpc 2.2.0 and fpc 2.2.1. May be I should upgrade to 2.3.x ?
--
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[EMAIL PROTECTED]
Intelligence is 10 million rules.
-- Douglas Lenat
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Re: [fpc-pascal] Generics
Le Mar 31, 2008 à 3:59 PM, ik a écrit :
Can you create a small proof of concept, and attach it here ?
Here you are.
The unit is in development so it may remain some errors (I would like
to convert another units with the use of generics).
BTW, is there a way to specifiy the template parameter must be a
descendant of another class ?
Ido
On Mon, Mar 31, 2008 at 4:27 PM, Damien Gerard
[EMAIL PROTECTED] wrote:
Le Mar 31, 2008 à 3:00 PM, Damien Gerard a écrit :
I would like to make a generic class, like this :
{$mode objfpc}
generic TMCollection_T = class(TObject)
private
FDefaultItem: _T; // line 35
public
constructor Create;
destructor Destroy;override;
[...]
end;
But I have got the following :
commons.pas(35,21) Error: Identifier not found _T
commons.pas(35,21) Error: Error in type definition
commons.pas(39,34) Error: Identifier not found _T
commons.pas(44,84) Error: Identifier not found _T
According to the documentation, I should use `var private`, but I
have got :
Compiling ./commons.pas
commons.pas(33,3) Error: VAR and TYPE are allowed only in generics
commons.pas(35,21) Error: Identifier not found _T
Could someone tell me where I am wrong ?
Thanks !
I forgot : fpc 2.2.0 and fpc 2.2.1. May be I should upgrade to
2.3.x ?
foo.pas
Description: Binary data
--
Damien Gerard
[EMAIL PROTECTED]
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-- Douglas Lenat
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Re: [fpc-pascal] Generics
Le Mar 31, 2008 à 6:03 PM, Peter Vreman a écrit :
I would like to make a generic class, like this :
{$mode objfpc}
generic TMCollection_T = class(TObject)
private
FDefaultItem: _T; // line 35
public
constructor Create;
destructor Destroy;override;
[...]
end;
But I have got the following :
commons.pas(35,21) Error: Identifier not found _T
commons.pas(35,21) Error: Error in type definition
commons.pas(39,34) Error: Identifier not found _T
commons.pas(44,84) Error: Identifier not found _T
According to the documentation, I should use `var private`, but I
have got :
Compiling ./commons.pas
commons.pas(33,3) Error: VAR and TYPE are allowed only in generics
commons.pas(35,21) Error: Identifier not found _T
Could someone tell me where I am wrong ?
The forward declaration of TMCollection makes it a normal class and
not a generic class.
Oki I understand.
I tried to use an Interface but I had a nice Segementation fault :)
Should I report it as a bug in the mantis ?
foo.pas
Description: Binary data
--
Damien Gerard
[EMAIL PROTECTED]
Intelligence is 10 million rules.
-- Douglas Lenat
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Re: [fpc-pascal] Generics
Oki I understand. I tried to use an Interface but I had a nice Segementation fault :) Should I report it as a bug in the mantis ? foo.pas Actually there is the same error with an intermediate class :( -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Generics
Le Mar 31, 2008 à 6:36 PM, Micha Nelissen a écrit : Damien Gerard wrote: I tried to use an Interface but I had a nice Segementation fault :) Should I report it as a bug in the mantis ? foo.pas Actually there is the same error with an intermediate class :( Segmentation faults in the compiler itself can/should always be reported. Thanks. Reported as Issue #11075. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Generics
Le Mar 31, 2008 à 10:06 PM, Damien Gerard a écrit : Le Mar 31, 2008 à 6:36 PM, Micha Nelissen a écrit : Damien Gerard wrote: I tried to use an Interface but I had a nice Segementation fault :) Should I report it as a bug in the mantis ? foo.pas Actually there is the same error with an intermediate class :( Segmentation faults in the compiler itself can/should always be reported. Thanks. Reported as Issue #11075. It was actually an already known bug :) -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] connection problem
Le Mar 27, 2008 à 2:30 PM, [EMAIL PROTECTED] a écrit : I am experiencing similar problems with the www.freepascal.org front page and svn checkout update - both just hang. It is ISP specific - my normal ones work fine, but I am staying away from home this week and my host's ISP won't connect. Colin Hi, I'm experiencing connection problems to bugs.freepascal.org and svn.freepascal.org. [EMAIL PROTECTED]:~/temp svn co http://svn.freepascal.org/FPC/svn/lazarus/trunk l svn: requerimiento PROPFIND falló en '/FPC/svn/lazarus/trunk' svn: PROPFIND de '/FPC/svn/lazarus/trunk': 405 Method Not Allowed (http://svn.freepascal.org) It looks like you're going through a transparent proxy blocking WebDAV http requests (like PROPFIND) [EMAIL PROTECTED]:~ ping bugs.freepascal.org PING bugs.freepascal.org (x.x.x.x) 56(84) bytes of data. 64 bytes from cust198-202.dsl.versadsl.be (x.x.x.x): icmp_seq=1 ttl=40 time=358 ms 64 bytes from cust198-202.dsl.versadsl.be (x.x.x.x): icmp_seq=2 ttl=40 time=386 ms 64 bytes from cust198-202.dsl.versadsl.be (x.x.x.x): icmp_seq=3 ttl=40 time=539 ms I tried at least since monday. Given absent of reports, and the bug tracker notices in mail and CIA at IRC I suppose it's working, any idea? Jesus Reyes A. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Functions with out parameters
I have the following function : procedure Foo(const AText: UTF8String; out AValue: UTF8String); begin ShowMessage(AText); // AValue := 'A custom value'; end; procedure AnotherMethod; var s: UTF8String; begin s := 'Some text'; Foo(s, s); // Do something with `s` end; If you have this, the showmessage display an empty string and sometimes the app crashes. I had a doubt so I tried this : procedure AnotherMethod; var s, t: UTF8String; begin s := 'Some text'; t := s; Foo(t, s); // Do something with `s` end; And it works well the app never crash and all my variables are correct. So I guess the two parameters share the same pointer. It seems logic to me in this case. However, is there a way the compiler produces an error in this case ? I suppose there is a similar case with the 'var' keyword. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Empty string
Le Mar 3, 2008 à 5:22 PM, ik a écrit : Doesn't FillChar/Word/Byte works for you ? I don't think any of them made my purpose. Ido On Mon, Mar 3, 2008 at 6:16 PM, Damien Gerard [EMAIL PROTECTED] wrote: In any programs, a lot of tests on empty strings are made. The following made the work : if Length(s) 0 then ... or if s '' then ... In a lot of cases, the real length is no needed, just to know if the string is empty or not. I am mainly using UTF8String so strings with leading zero. Just with the first char we can know if the string is empty or not. Is there a function of this kind that I don't know already exist ? Would it be possible to implement such a function (may be a stupid idea for an unknown reason) ? Can this function be directly done in FPC ? Regards. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal -- http://ik.homelinux.org/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Empty string
Le Mar 7, 2008 à 2:54 PM, Jonas Maebe a écrit : On 03 Mar 2008, at 17:16, Damien Gerard wrote: In any programs, a lot of tests on empty strings are made. The following made the work : if Length(s) 0 then ... or if s '' then ... In a lot of cases, the real length is no needed, just to know if the string is empty or not. That is what if s '' then checks for. This is already generated as optimally as possible. In a previous thread, I have ask the difference between (Length(s) = 0) and (s = '') Copy paste a answer : if s = '' then ... of this one if Length(s) 0 then ... Both generate the same code. Consequently, it can not be the same code. Otherwise I understood nothing :) -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Empty string
Le Mar 7, 2008 à 3:35 PM, John Coppens a écrit : On Fri, 7 Mar 2008 15:09:36 +0100 Damien Gerard [EMAIL PROTECTED] wrote: Consequently, it can not be the same code. Otherwise I understood nothing :) '' is an empty string, _and_ its length is zero (of course). So the compiler is so intelligent as to replace length(s) = 0, or s = '' by the same code. Normally s = '' would be a very slow way to check for an empty string, so the compiler optimizes this automatically. Thanks ! Sorry for my question not so clear :) -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Empty string
Le Mar 6, 2008 à 5:26 PM, Lucas Vasconcelos a écrit : You can try access a UTF8String lika a array. So, you can replace your test by if mystringvar[0] '' then ... I thought string should be accessed from 1 not 0 for compatibility. And it is what I am doing. for i := 1 to length(s) do ... so I am not sure that using s[0] is safe -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] AnsiDequotedStr not return empty for
Le Mar 2, 2008 à 6:11 PM, zaher dirkey a écrit : Who is need to return the same source if it empty quoted string? That force me to implement a new function to use it. I think the real problem is the Delphi Compatiblity. If the function works the same in Delphi, it must be kept like this. But a new function (with a different name) may be created with a more intuitive behavior. On Sun, Mar 2, 2008 at 2:17 PM, Micha Nelissen [EMAIL PROTECTED] wrote: Peter Vreman wrote: In case always check Delphi documentation to see wether the behaviour you see is intentional. In case of it is also ambigious what you want. Because in the middle of the string is translated to a single . So you might also expect that it returns a single instead of an empty string. Wouldn't it be reasonable to expect the rules are similar to Pascal itself, with being a single quote, and '' an empty string ? Micha -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Empty string
In any programs, a lot of tests on empty strings are made. The following made the work : if Length(s) 0 then ... or if s '' then ... In a lot of cases, the real length is no needed, just to know if the string is empty or not. I am mainly using UTF8String so strings with leading zero. Just with the first char we can know if the string is empty or not. Is there a function of this kind that I don't know already exist ? Would it be possible to implement such a function (may be a stupid idea for an unknown reason) ? Can this function be directly done in FPC ? Regards. -- Damien Gerard [EMAIL PROTECTED] Intelligence is 10 million rules. -- Douglas Lenat ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Vim FileType for pascal files
hi ! I use includes files and a vim editor. Obviously .inc are not recognized as pascal files. I tried the following : // vim:ts=4:filetype=pascal but it does not work. Any ideas ? -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Vim FileType for pascal files
Le Feb 24, 2008 à 9:59 PM, Lucas Vasconcelos a écrit : hi, try // vim: set ts=4 filetype=pascal : ;~] It does not work either :( On Sun, Feb 24, 2008 at 9:29 AM, Damien Gerard [EMAIL PROTECTED] wrote: hi ! I use includes files and a vim editor. Obviously .inc are not recognized as pascal files. I tried the following : // vim:ts=4:filetype=pascal -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] XML Programming..
Le Feb 13, 2008 à 2:06 AM, [EMAIL PROTECTED] [EMAIL PROTECTED] a écrit : Actually I want to change data beetwen application from .Net with my app in FPC using web interface (webservices ?). Is there are an examples about that ? May be take a look at this : http://wiki.freepascal.org/Web_Service_Toolkit -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Semaphore
Le Feb 12, 2008 à 12:36 PM, Graeme Geldenhuys a écrit :
On 11/02/2008, Damien Gerard [EMAIL PROTECTED] wrote:
My program must work under OSX/Nux and Windows.
I may have missed something but I can not find something suitable for
me.
Under Windows OpenSemaphore, under unixes CurrentTM.Semaphore*...
Is there any TSemaphore class of equivalent ? Or may be an example
how
to use Semaphores ? :)
I've wondered the same thing In the end I had to write code like
the following:
Not idea, but it works. We needed to support Linux and Windows only.
procedure TtiPool.CreatePoolSemaphore;
begin
{$IFDEF MSWINDOWS}
if FSemaphore 0 then
CloseHandle(FSemaphore);
FSemaphore := CreateSemaphore(nil, FMaxPoolSize, FMaxPoolSize, nil);
{$ENDIF MSWINDOWS}
{$IFDEF LINUX}
sem_destroy(FSemaphore);
if sem_init(FSemaphore, 0, FMaxPoolSize) 0 then
raise Exception.Create('Failed to create the semaphore');
{$ENDIF LINUX}
end;
Thanks !
I think I can safely change LINUX by UNIX and it should work on OS X
too.
I will made a TSemaphore :)
Regards,
- Graeme -
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Re: [fpc-pascal] Semaphore
Le Feb 12, 2008 à 12:36 PM, Graeme Geldenhuys a écrit :
On 11/02/2008, Damien Gerard [EMAIL PROTECTED] wrote:
My program must work under OSX/Nux and Windows.
I may have missed something but I can not find something suitable for
me.
Under Windows OpenSemaphore, under unixes CurrentTM.Semaphore*...
Is there any TSemaphore class of equivalent ? Or may be an example
how
to use Semaphores ? :)
I've wondered the same thing In the end I had to write code like
the following:
Not idea, but it works. We needed to support Linux and Windows only.
procedure TtiPool.CreatePoolSemaphore;
begin
{$IFDEF MSWINDOWS}
if FSemaphore 0 then
CloseHandle(FSemaphore);
FSemaphore := CreateSemaphore(nil, FMaxPoolSize, FMaxPoolSize, nil);
{$ENDIF MSWINDOWS}
{$IFDEF LINUX}
sem_destroy(FSemaphore);
if sem_init(FSemaphore, 0, FMaxPoolSize) 0 then
raise Exception.Create('Failed to create the semaphore');
{$ENDIF LINUX}
end;
I realize you have already made a TSemaphore like. May be I can
directly use it for my purposes ?
--
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[EMAIL PROTECTED]
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Re: [fpc-pascal] Semaphore
Le Feb 12, 2008 à 2:41 PM, Jonas Maebe a écrit :
On 11 Feb 2008, at 10:45, Damien Gerard wrote:
I think it has been discussed before but I would like to use
Semaphores, to allow multiple reads but 1 write at once (which is
in fact commons operations in a multi-thread program).
My program must work under OSX/Nux and Windows.
I may have missed something but I can not find something suitable
for me.
Under Windows OpenSemaphore, under unixes CurrentTM.Semaphore*...
CurrentTM.Semaphore* should also work under Windows (if it doesn't,
please file a bug report). And the way to use those is by calling
{$ifdef unix}
uses
cthreads;
{$endif}
var
p: pointer;
begin
p:=currenttm.SemaphoreInit;
currenttm.semaphorepost(p);
currenttm.semaphorewait(p);
currenttm.semaphoredestroy(p);
end.
I though that too but currenttm can not be found under Windows. What
is the good unit for it ?
--
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[EMAIL PROTECTED]
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-- (f00ty)
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[fpc-pascal] Semaphore
Hi ! I think it has been discussed before but I would like to use Semaphores, to allow multiple reads but 1 write at once (which is in fact commons operations in a multi-thread program). My program must work under OSX/Nux and Windows. I may have missed something but I can not find something suitable for me. Under Windows OpenSemaphore, under unixes CurrentTM.Semaphore*... Is there any TSemaphore class of equivalent ? Or may be an example how to use Semaphores ? :) -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Internal Error 200212277
I often got the error from FPC Internal Error 200212277 when I build my applications using Lazarus, whatever the version of fpc (=2.2 others I don't know) It happens only when I choose build and not Build all, so when my apps are not entirely rebuild. What is it exactly ? Have I something to do from my side ? -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Heterogenous list of objects
On Jan 22, 2008, at 11:22 AM, [EMAIL PROTECTED] wrote: Hi, I'd like to manage a list of heterogenous objects. For instance, I have a list of objects to buy in store: cheeses (of class TCheese), soaps (of class TSoap), flowers (of class TFlower), etc... I thought to gather pointers to different objects of these classes in a TList. But, when it comes to manipulate or destroy these items, I am in trouble: I have lost the information about the precise type of the object the pointer points to. Does somebody have an idea? Like this : (I can make a complete example if needed) type TNodeAbstract = class procedure print;virtual;abstract; end; TNodeFoo = class(TNodeAbstract) procedure print;override; procedure SpecificMethodeForFoo; end; ... var objs: TObjectList; objs := TObjectList.Create(True); objs.Add(TNodeFoo.Create); ... var o : TNodeAbstract; for i := 0 to objs.Count - 1 do begin o := TNodeAbstract(Objs[i]); if (o is TNodeFoo) then (o as TNodeFoo).SpecificMethodeForFoo; o.Print; end; Thanks in advance, Gilles Marcou ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] property or public
I have (it would seem) a stupid question :) We have TStringList vars. User can do what he want with it. Which one is the stupid or the better way to do it ? TMyClass = class(TObject) public snip List1: TStringList; List2: TStringList; end; or TMyClass = class private FList1: TStringList; FList2: TStringList; public property List1: TStringList read FList1; property List2: TStringList read FList2; end; -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] property or public
On Jan 21, 2008, at 2:52 PM, Joao Morais wrote: Damien Gerard wrote: I have (it would seem) a stupid question :) We have TStringList vars. User can do what he want with it. Which one is the stupid or the better way to do it ? TMyClass = class(TObject) public snip List1: TStringList; List2: TStringList; end; or TMyClass = class private FList1: TStringList; FList2: TStringList; public property List1: TStringList read FList1; property List2: TStringList read FList2; end; The later, *much* better. You should never use class members outside the private area. Thanks ! What is the reason ? I am happy I was right but I need some reason :) -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] property or public
On Jan 21, 2008, at 4:47 PM, Joao Morais wrote: Matt Emson wrote: Joao Morais wrote: Damien Gerard wrote: On Jan 21, 2008, at 2:52 PM, Joao Morais wrote: Damien Gerard wrote: I have (it would seem) a stupid question :) We have TStringList vars. User can do what he want with it. Which one is the stupid or the better way to do it ? TMyClass = class(TObject) public snip List1: TStringList; List2: TStringList; end; or TMyClass = class private FList1: TStringList; FList2: TStringList; public property List1: TStringList read FList1; property List2: TStringList read FList2; end; The later, *much* better. You should never use class members outside the private area. Thanks ! What is the reason ? I am happy I was right but I need some reason :) Encapsulation, on behalf of the integrity of the instance. Implementation detail is also a good example. Then: TMyClass = class private FList1: array of string; //convoluted, but uses a different storage mechanism FList2: array of string; protected function GetList1: TStringList; virtual; function GetList1: TStringList; virtual; public property List1: TStringList read GetList1; property List2: TStringList read GetList2; end; You can implement the storage for GetList1 and GetList 2 any way that you wish internally, but give a uniform external interface. Exact, polymorphism is also a reason. You can have abstract methods and no class members if the design requires. The interface continues the same. That is what I thought too. But I wanted external advice. Thanks to all ! -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] FreePascal Coding style
Is there a standard Coding style for FreePascal (Pascal) available which programmers should use ? It is for my boss :) -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Read UTF8 Files
Hi ! I would like to read UTF8 files. There is TFileStream, and it seems to make the job. However, I need read _big_ files (with long string) so I would like to read block by block instead of a big string in memory with ReadAnsiString. How should I do ? Thanks ! -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] dot within unit file name
On Jan 18, 2008, at 12:16 PM, Bee wrote: And yes, I'd like to have implemented that (child units) in FPC. What is child unit? http://www.adaic.com/docs/95style/html/sec_4/4-1-1.html -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] dot within unit file name
On Jan 18, 2008, at 11:16 AM, Bee wrote: Hi all, Why cant FPC use unit that has (some) dot(s) within the file name? Can FPC support it in the next release (2.2.2)? I think the dot is used in the grammar. for example : unit foo; interface procedure Print; implementation [...] end. You want to be able to call foo.Print; and you can not make the difference between a dot for the filename and a dot as a separator. Sometimes I need to have some units for example: unit1.ori.pas and unit1.modif.pas, which I need to switch to one of them but never use them both. TIA. -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Problem using fpc
On Jan 14, 2008, at 7:13 AM, Plato wrote: Compiling using the IDE+fpc 2.2.0 works correctly on my laptop(celeron cpu), yet on my new desktop(Intel 2140 Dual Core + one SATA disk and 2 IDE disks) I consistently get the following result if compiling a program(or unit) eg for a file '.pas' I get: Error:Can't create object file x.o Error:Can't create object x.o Both systems run under XP Home+SP2. Presumably a configuration problem? Any suggestions(polite) please. May be some Permissions issues ? -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Classes with abstract methods
With fpc you can get myfile.pas(77,47) Warning: Constructing a class with abstract methods I just would like to know why it is allowed to build classes with abstract methods. AFIK it is different from other compilers and it is a bit strange for me. -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Classes with abstract methods
On Jan 14, 2008, at 10:27 AM, Michael Van Canneyt wrote: On Mon, 14 Jan 2008, Damien Gerard wrote: With fpc you can get myfile.pas(77,47) Warning: Constructing a class with abstract methods I just would like to know why it is allowed to build classes with abstract methods. AFIK it is different from other compilers and it is a bit strange for me. Delphi gives exactly the same warning. I don't remember that. It is allowed to create such instances: as long as you don't call any of the abstract methods, there will be no problem. Is there a way to abort the compilation in this cases instead of a warning ? -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Classes with abstract methods
On Jan 14, 2008, at 11:00 AM, Graeme Geldenhuys wrote: On 14/01/2008, Michael Van Canneyt [EMAIL PROTECTED] wrote: Is there a way to abort the compilation in this cases instead of a warning ? Currently not. If you want to be that strict, then use Interfaces instead of Abstract classes. Indeed I should do this. Thanks -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Classes with abstract methods
On Jan 14, 2008, at 10:53 AM, Michael Van Canneyt wrote: On Mon, 14 Jan 2008, Damien Gerard wrote: On Jan 14, 2008, at 10:27 AM, Michael Van Canneyt wrote: On Mon, 14 Jan 2008, Damien Gerard wrote: With fpc you can get myfile.pas(77,47) Warning: Constructing a class with abstract methods I just would like to know why it is allowed to build classes with abstract methods. AFIK it is different from other compilers and it is a bit strange for me. Delphi gives exactly the same warning. I don't remember that. D:\Tempdcc32 unit1 Borland Delphi Version 15.0 Copyright (c) 1983,2002 Borland Software Corporation Unit1.pas(32) Warning: Constructing instance of 'TStrings' containing abstract method 'TStrings.Clear' Unit1.pas(32) Warning: Constructing instance of 'TStrings' containing abstract method 'TStrings.Delete' Unit1.pas(32) Warning: Constructing instance of 'TStrings' containing abstract method 'TStrings.Insert' Unit1.pas(32) Hint: Value assigned to 'T' never used Unit1.pas(36) 37 lines, 0.11 seconds, 475 bytes code, 8 bytes data. Yes I trust you don't wory, just my mind is playing with me :) It is allowed to create such instances: as long as you don't call any of the abstract methods, there will be no problem. Is there a way to abort the compilation in this cases instead of a warning ? Currently not. Thanks -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] TStringList
I often use TObjectLis, which is able to destroy by itself objects in its list. However, is it the same with a TStringList when an object is added with AddObject ? I mean when the method .Clear or Delete are called, is my associated object is destroyed in the same time ? I suppose there is not the case due to there is not the property OwnObject as in a TObjectList. -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Classes with abstract methods
On Jan 14, 2008, at 11:55 AM, Michael Van Canneyt wrote: On Mon, 14 Jan 2008, Peter Vreman wrote: It is allowed to create such instances: as long as you don't call any of the abstract methods, there will be no problem. Is there a way to abort the compilation in this cases instead of a warning ? Currently not. You can abort compilation in case of any warning with the -Sew option. The same goes for note or hint with -Sen or -Seh, but those are only usefull for compiler tests. The problem with this mechanism is that if you have another warning which occurs first, that will stop your compilation, you'll never get to the abstract warning... I agree. May be a new option in a future release of fpc ? :) It would be nice to have a switch to do it. -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Classes with abstract methods
On Jan 14, 2008, at 2:59 PM, Jonas Maebe wrote: On 14 Jan 2008, at 14:43, Damien Gerard wrote: On Jan 14, 2008, at 11:55 AM, Michael Van Canneyt wrote: The problem with this mechanism is that if you have another warning which occurs first, that will stop your compilation, you'll never get to the abstract warning... I agree. May be a new option in a future release of fpc ? :) It would be nice to have a switch to do it. There is already a feature request for the ability to turn off/on certain warnings in Mantis. Upgrading certain warnings (and hints/ notes) to errors is quite related. It should be quite doable for an outsider to implement this sort functionality, but until now no one has volunteered yet. I see. I will see what I can do next month. -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Extension .pp or .pas
I am starting a new project and I worry about filename conventions. It is possible to use .pp or .pas for fpc source files. Lazarus creates .pas files AFAIK. The project will be a console application. Is there some existing conventions (from history or something else) or we totally don't care about ? -- Damien Gerard [EMAIL PROTECTED] Le temps n'a pas d'importance. Seul le code est important -- (f00ty) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Maybe a new fpc book :)
On Jan 5, 2008, at 11:11 AM, Florian Klaempfl wrote: Marco Ciampa schrieb: I work in a high school in Italy. We are currently using fpc + gnuplot for math and phisics simulations. In one lab we are currently starting to use Linux as the _sole_ platform. On Wed, Jan 02, 2008 at 12:35:57PM -0500, Anthony W. Henry wrote: 1. What OS is most-used for Free Pascal? Windows? Linux? 80% windows and 20% Linux (this one growing) Not OS X at all ? I am a bit surprised. 2. What libraries do most people use for console (i.e., terminal or text-mode) apps? I dislike ncurses; is there a better way? console graph unit (BGI drivers under windows and Linux (X _not_ VGAlib) ) If one writes a book, _please_ use SDL for graphics and skip the legacy graph unit :) Agree :) -- Damien Gerard [EMAIL PROTECTED] People who used magic without knowing what they were doing usually came to a sticky end. All over the entire room, sometimes. -- (Terry Pratchett, Moving Pictures) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Type declaration
Hi ! I would like to know if there are any differences between these two following declarations : type TMyType = smallint; And type TMyType = type smallint; -- Damien Gerard [EMAIL PROTECTED] People who used magic without knowing what they were doing usually came to a sticky end. All over the entire room, sometimes. -- (Terry Pratchett, Moving Pictures) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] String comparison
Just another question :) What is the most efficient way to check if a string is empty or not ? if s = '' then ... of this one if Length(s) 0 then ... -- Damien Gerard [EMAIL PROTECTED] People who used magic without knowing what they were doing usually came to a sticky end. All over the entire room, sometimes. -- (Terry Pratchett, Moving Pictures) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] String comparison
On Dec 21, 2007, at 2:47 PM, Daniël Mantione wrote: Op Fri, 21 Dec 2007, schreef Damien Gerard: Just another question :) What is the most efficient way to check if a string is empty or not ? if s = '' then ... of this one if Length(s) 0 then ... Both generate the same code. Thanks ! -- Damien Gerard [EMAIL PROTECTED] People who used magic without knowing what they were doing usually came to a sticky end. All over the entire room, sometimes. -- (Terry Pratchett, Moving Pictures) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Type declaration
On Dec 21, 2007, at 3:53 PM, ik wrote: Hi, On Dec 21, 2007 3:23 PM, Damien Gerard [EMAIL PROTECTED] wrote: Hi ! I would like to know if there are any differences between these two following declarations : type TMyType = smallint; This is an alias to smallint, giving it a new way reference it. And type TMyType = type smallint; This is a new type, that have the range of smallint, but they are not the same. If you will place a TMyType variable inside a smallint paremeter you might have an error or warning of type mismatch. I like it :) Thanks ! -- Damien Gerard [EMAIL PROTECTED] People who used magic without knowing what they were doing usually came to a sticky end. All over the entire room, sometimes. -- (Terry Pratchett, Moving Pictures) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Makefile with fpcmake
I am trying to use fpcmake to compile my fpc programs (console, i386/ OS X Leopard, fpc 2.2.0) ut I've got the following : Shani [milipili] ...ects/Sayuri/trunk/sayuri % fpcmake -Tall - vw 15 :50 #159 FPCMake Version 2.0.0 [2007/12/21] Processing Makefile.fpc Targets: i386-linux i386-go32v2 i386-win32 i386-os2 i386-freebsd i386-beos i386-netbsd i386-solaris i386-qnx i386-netware i386-openbsd i386-wdosx i386-darwin i386-emx i386-watcom i386-netwlibc i386-wince i386-embedded i386-symbian m68k-linux m68k-freebsd m68k-netbsd m68k- amiga m68k-atari m68k-openbsd m68k-palmos m68k-embedded powerpc-linux powerpc-netbsd powerpc-amiga powerpc-macos powerpc-darwin powerpc- morphos powerpc-embedded sparc-linux sparc-netbsd sparc-solaris sparc- embedded x86_64-linux x86_64-freebsd x86_64-win64 x86_64-embedded arm- linux arm-palmos arm-wince arm-gba arm-nds arm-embedded arm-symbian powerpc64-linux powerpc64-embedded Globals: FPCDIR = ../lib/fpc/2.2.0 PACKAGESDIR = $(FPCDIR)/packages $(FPCDIR)/packages/base $ (FPCDIR)/packages/extra $(FPCDIR)/packages UNITSDIR = $(FPCDIR)/units/$(FULLTARGET) BASEDIR = /Users/milipili/Projects/Sayuri/trunk/sayuri Required packages for linux-i386: rtl Package rtl: Looking for Makefile.fpc: ../lib/fpc/2.2.0/rtl/ Makefile.fpc ../lib/fpc/2.2.0/packages/rtl/Makefile.fpc ../lib/fpc/ 2.2.0/packages/base/rtl/Makefile.fpc ../lib/fpc/2.2.0/packages/extra/ rtl/Makefile.fpc ../lib/fpc/2.2.0/packages/rtl/Makefile.fpc Package rtl: Looking for Package.fpc: ../lib/fpc/2.2.0/rtl/ Package.fpc ../lib/fpc/2.2.0/units/i386-linux/rtl/Package.fpc Error: Target linux, package rtl not found I use dmg packages from the lazarus mirrors, so I have two separated packages (binaries and sources). I copied the source files (rtl,packages) into the /usr/local/lib/fpc/ 2.2.0/ without any results. Where I am wrong ? PS: My Makefile.fpc [package] name=Sayuri version=0.1 [require] packages= [target] programs=sayuri [compiler] unitdir=languages includedir=. [default] target=all [clean] files=$(wildcard *$(OEXT)) $(wildcard *$(PPUEXT)) $(wildcard *$(RSTEXT)) -- Damien Gerard [EMAIL PROTECTED] People who used magic without knowing what they were doing usually came to a sticky end. All over the entire room, sometimes. -- (Terry Pratchett, Moving Pictures) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
