Re: [fpc-pascal] Double specialization of generic class
Hi Sven, I am using fpc 2.6.2. I am very sorry that I don't have time to compile and install 2.7.1 at this time. It's good to know that it works, at least in 2.7.1. I will report the problem again while I start using 2.7.1 or when it is released as 2.8 :-) For now, another suggestion regarding this error is the error message it gave out, which is not understandable (error -139), I only find out the cause of this by comparing my source code in git. I hope this is also improved in 2.7 or later. Thanks! Shannon 2014-04-15 13:34 GMT+08:00 Sven Barth pascaldra...@googlemail.com: On 15.04.2014 03:51, Xiangrong Fang wrote: Hi, I got strange ppcx64 error: -139, which I found is caused by this: type TNodeStack = specialize TVectorTNodeHash; where TNodeHash itself is a specialization: type PNode = ^TNode; //TNode is a plain record TNodeHash = specialize TTreapInteger, PNode; Is it true that specialization of a generic class using another specialized generic class is not allowed? No, that should work. Maybe some bug. Is there any error message? Could you present the full compiler output, please? You are using 2.7.1, right? Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Double specialization of generic class
Am 15.04.2014 08:47 schrieb Xiangrong Fang xrf...@gmail.com: It's good to know that it works, at least in 2.7.1. I will report the problem again while I start using 2.7.1 or when it is released as 2.8 :-) That's the point: I don't know wether it compiles in 2.7.1 as I did not test it. If you could provide a minimal sample (which fails in 2.6.2) and report that as a bug I could ensure that 2.7.1 works correctly there. For now, another suggestion regarding this error is the error message it gave out, which is not understandable (error -139), I only find out the cause of this by comparing my source code in git. No other message? Did you check the -v options that errors are really printed? Do you compile using Lazarus or on command line? If the former then try the latter please or do a right click on the message window and select copy all visible and hidden messages to clipboard (or so) and paste that somewhere else to see wether Lazarus hid any messages. I hope this is also improved in 2.7 or later. Normally there should either be an error message (at least compilation aborted) or if it's a crash a stackstrace... Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Double specialization of generic class
2014-04-15 17:21 GMT+08:00 Sven Barth pascaldra...@googlemail.com: Am 15.04.2014 08:47 schrieb Xiangrong Fang xrf...@gmail.com: It's good to know that it works, at least in 2.7.1. I will report the problem again while I start using 2.7.1 or when it is released as 2.8 :-) That's the point: I don't know wether it compiles in 2.7.1 as I did not test it. If you could provide a minimal sample (which fails in 2.6.2) and report that as a bug I could ensure that 2.7.1 works correctly there. I cannot replicate the problem using a minimal program, because it gives out different error message. The following minimal program compiles OK: program vectr; type generic TGeneric1T = class end; generic TGeneric2T = class end; TSpec1 = specialize TGeneric1Integer; TSpec2 = specialize TGeneric2TSpec1; begin end. While the following program generate different error: program vectr; uses treap, vector; type TNodeHash = specialize TTreapInteger, string; TNodeVector = class(specialize TVectorTNodeHash) protected function OnSort(v1, v2: T): Integer; override; end; operator (nh1, nh2: TNodeHash): Boolean; begin Result := nh1.Count nh2.Count; end; operator (nh1, nh2: TNodeHash): Boolean; begin Result := nh1.Count nh2.Count; end; function TNodeVector.OnSort(v1, v2: T): Integer; begin Result := 0; end; begin end. gives error message: vector.pas(149,9) Error: Operator is not overloaded: TTreap$LongInt$AnsiString TTreap$LongInt$AnsiString vector.pas(151,14) Error: Operator is not overloaded: TTreap$LongInt$AnsiString TTreap$LongInt$AnsiString vectr.lpr(28) Fatal: There were 2 errors compiling module, stopping The two used units can be downloaded here: https://github.com/xrfang/fpcollection/ While in my real program, I have this: type TCmhWaves = specialize TVectorTCmhWave; The thing is, even if I do NOT use this definition at all, it still crashes the compiler. By crash I mean I get this from lazarus: Compiling wmodel.lError: /usr/bin/ppcx64 can't be executed, error message: Failed to execute /usr/bin/ppcx64, error code: -139 TCmhWave is a specialized subclass of My TTreap class (also on github), it does NOT overload the and operators either. So my question is: 1) why my simplified example still require overloaded operator, although I have already done so? 2) If this is the cause of error (TCmhWave does not have these operators defined), why the compiler returns error code: -139 instead of more detailed errors? BTW, on my first attempt to debug this problem in lazbuild (command line) I get some error related to VMA, but unfortunately I forgot what it is and cannot get it shown again. Is there any way to customize the lazbuild by some switches to let it output more messages? Thanks. xrfang@OP380:~/Sync/wmodel$ lazbuild wmodel.lpi primary config path: /home/xrfang/.lazarus TPkgManager.CheckCompileNeedDueToDependencies State file of LCL 1.2.0.3 is newer than state file of Package: cairocanvas_pkg 0.0 TLazPackageGraph.CheckIfPackageNeedsCompilation normal output dir is not writable: /usr/share/lazarus/1.2.0/components/cairocanvas/lib/x86_64-linux/gtk2/ TLazPackageGraph.GetFallbackOutputDir cairocanvas_pkg: /home/xrfang/.lazarus/lib/cairocanvas_pkg/lib/x86_64-linux/gtk2 TParsedCompilerOptions.SetOutputDirectoryOverride New=/home/xrfang/.lazarus/lib/cairocanvas_pkg/lib/x86_64-linux/gtk2 TLazPackageGraph.CheckIfCurPkgOutDirNeedsCompile Compiler params changed for Printer4Lazarus 0.5 Old= -MObjFPC -Scgi -O1 -g -gl -vewnhi -Fi/usr/share/lazarus/1.2.0/components/printers/unix -Fi/usr/share/lazarus/1.2.0/components/printers/win32 -Fi/usr/share/lazarus/1.2.0/components/printers/carbon -Fi/usr/share/lazarus/1.2.0/components/printers/qt -Fu/usr/share/lazarus/1.2.0/components/printers/unix -Fu/usr/share/lazarus/1.2.0/components/printers/win32 -Fu/usr/share/lazarus/1.2.0/components/printers/carbon -Fu/usr/share/lazarus/1.2.0/components/printers/qt -Fu/usr/share/lazarus/1.2.0/packager/units/x86_64-linux -Fu/usr/share/lazarus/1.2.0/components/lazutils/lib/x86_64-linux -Fu/usr/share/lazarus/1.2.0/lcl/units/x86_64-linux -Fu/usr/share/lazarus/1.2.0/lcl/units/x86_64-linux/gtk2 -Fu/usr/share/lazarus/1.2.0/components/cairocanvas/lib/x86_64-linux/gtk2 -Fu/usr/share/lazarus/1.2.0/components/printers/ -FU/usr/share/lazarus/1.2.0/components/printers/lib/x86_64-linux/gtk2/ -l -dLCL -dLCLgtk2 -dUseCache -dNativePrint -dUSEUNICODE printer4lazarus.pas Now= -MObjFPC -Scgi -O1 -g -gl -vewnhi -Fi/usr/share/lazarus/1.2.0/components/printers/unix -Fi/usr/share/lazarus/1.2.0/components/printers/win32 -Fi/usr/share/lazarus/1.2.0/components/printers/carbon -Fi/usr/share/lazarus/1.2.0/components/printers/qt -Fu/usr/share/lazarus/1.2.0/components/printers/unix -Fu/usr/share/lazarus/1.2.0/components/printers/win32 -Fu/usr/share/lazarus/1.2.0/components/printers/carbon -Fu/usr/share/lazarus/1.2.0/components/printers/qt
Re: [fpc-pascal] Double specialization of generic class
Am 15.04.2014 11:52 schrieb Xiangrong Fang xrf...@gmail.com: While the following program generate different error: program vectr; uses treap, vector; type TNodeHash = specialize TTreapInteger, string; TNodeVector = class(specialize TVectorTNodeHash) protected function OnSort(v1, v2: T): Integer; override; end; operator (nh1, nh2: TNodeHash): Boolean; begin Result := nh1.Count nh2.Count; end; operator (nh1, nh2: TNodeHash): Boolean; begin Result := nh1.Count nh2.Count; end; function TNodeVector.OnSort(v1, v2: T): Integer; begin Result := 0; end; begin end. gives error message: vector.pas(149,9) Error: Operator is not overloaded: TTreap$LongInt$AnsiString TTreap$LongInt$AnsiString vector.pas(151,14) Error: Operator is not overloaded: TTreap$LongInt$AnsiString TTreap$LongInt$AnsiString vectr.lpr(28) Fatal: There were 2 errors compiling module, stopping Operator overloads must be available in the scope the generic type was *declared* in, not the scope it is *specialized* in. Currently this is only possible by using records that contain operator overloads (class operator) and using those to specialize the generic. So you'll need to create a container record that contains your TTreap specialization TNodeHash and the operator overloads for and and specialize TVector with that. I have an idea to improve this situation for non-Delphi mode generics, but that wouldn't help you with 2.6.x ;) While in my real program, I have this: type TCmhWaves = specialize TVectorTCmhWave; The thing is, even if I do NOT use this definition at all, it still crashes the compiler. By crash I mean I get this from lazarus: Compiling wmodel.lError: /usr/bin/ppcx64 can't be executed, error message: Failed to execute /usr/bin/ppcx64, error code: -139 Is there really a ppcx64 in /usr/bin? And is it really executable? (try /usr/bin/ppcx64 -i in a shell) Also check you Lazarus settings that you've setup the correct fpc binary and that you project's target settings are set to the correct platform (maybe you are trying to compile for x86_64 without having a x84_64 compiler installed). Regards, Sven ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
[fpc-pascal] SourceForge April 2014 Project of the Month: Free Pascal
Congratulations, FreePascal! http://sourceforge.net/blog/april-2014-project-of-the-month-free-pascal -- João Marcelo http://blog.caixadepandora.com/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] SourceForge April 2014 Project of the Month: Free Pascal
On Tue, Apr 15, 2014 at 9:43 AM, João Marcelo Vaz jms...@gmail.com wrote: Congratulations, FreePascal! http://sourceforge.net/blog/april-2014-project-of-the-month-free-pascal Congratulations! Marcos Douglas ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Double specialization of generic class
2014-04-15 20:26 GMT+08:00 Sven Barth pascaldra...@googlemail.com: Compiling wmodel.lError: /usr/bin/ppcx64 can't be executed, error message: Failed to execute /usr/bin/ppcx64, error code: -139 Is there really a ppcx64 in /usr/bin? And is it really executable? (try /usr/bin/ppcx64 -i in a shell) Also check you Lazarus settings that you've setup the correct fpc binary and that you project's target settings are set to the correct platform (maybe you are trying to compile for x86_64 without having a x84_64 compiler installed). No problem with the executable. I run it from command line, which is ok. i.e. ppcx64 is not corrupted, nor there is any authorization problem. Also, if I remove the unused declaration, the error is gone. Doesn't -139 have any meaning to you? Regards, Xiangrong ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] SourceForge April 2014 Project of the Month: Free Pascal
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 15.04.2014 14:43, João Marcelo Vaz wrote: Congratulations, FreePascal! http://sourceforge.net/blog/april-2014-project-of-the-month-free-pascal I just saw that news too in the SourceForge newsletter :-) That's really awesome! Hopefully this pushes FreePascal further. It's such a great compiler and platform to work with. Thanks to all developers and contributors for offering us such a fantastic toolset (especially Lazarus is outstanding in regards to RAD GUI development). Thanks!! - -- Best Regards, Andreas -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlNNb6YACgkQIxziJkiYZxEcXgD/R9urZy/M04idzZ5nzewBJpEb /dg6GbsewX08RVZ6IdUA/0Ql3j36hUnxk809cWLXZuwV3e0pv7WwjH7l4IR3wAbH =kj/y -END PGP SIGNATURE- ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] SourceForge April 2014 Project of the Month: Free Pascal
congratulations! 2014-04-15 19:43 GMT+02:00 Andreas Schneider ak...@gmx.de: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 15.04.2014 14:43, João Marcelo Vaz wrote: Congratulations, FreePascal! http://sourceforge.net/blog/april-2014-project-of-the-month-free-pascal I just saw that news too in the SourceForge newsletter :-) That's really awesome! Hopefully this pushes FreePascal further. It's such a great compiler and platform to work with. Thanks to all developers and contributors for offering us such a fantastic toolset (especially Lazarus is outstanding in regards to RAD GUI development). Thanks!! - -- Best Regards, Andreas -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iF4EAREIAAYFAlNNb6YACgkQIxziJkiYZxEcXgD/R9urZy/M04idzZ5nzewBJpEb /dg6GbsewX08RVZ6IdUA/0Ql3j36hUnxk809cWLXZuwV3e0pv7WwjH7l4IR3wAbH =kj/y -END PGP SIGNATURE- ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Just a question about OAuth 2.0 implementation
On 2014-04-14 23:27, silvioprog wrote: 2014-04-14 17:52 GMT-03:00 Dariusz Mazur dar...@emadar.com mailto:dar...@emadar.com: [...] I does one. If You interested I public it on github. I'm interested! :) https://github.com/darekm/openid4fpc Darek ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
