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3044 discussions

typeof?
by Martin Bähr 16 Jan '05

16 Jan '05

hi, when looking at this typeof comparison thing, i found the following oddity: > array(string) astr; > array(int) aint; > typeof(astr) < typeof(aint); Result: 1 > typeof(astr) > typeof(aint); Result: 1 how can they both be true? greetings, martin.

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Pike & MinGW
by Bill Welliver 16 Jan '05

16 Jan '05

I thought I'd try my hand at compiling a MinGW pike. I installed nilsson's MinGW package as well as Pike 7.6.24 and had my paths alll set up properly. I had to run bison manually, as the MinGW package i'm using didn't have it, so I modified the makefile to skip over that bit. I also had problems configuring in SQLite, as there are missing source files apparently. The big show stopper right now is sprintf.c: In file included from C:/Program Files/MinGW/Pike/7.7/src/opcodes.h:192, from C:/Program Files/MinGW/Pike/7.7/src/modules/sprintf/sprintf.c:296: C:/Program Files/MinGW/Pike/7.7/src/global.h:84: error: syntax error before "struct" C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:171: error: 'FILE' redeclared as different kind of symbol C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:161: error: previous declaration of 'FILE' was here C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:176: error: syntax error before "_iob" C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:176: warning: type defaults to `int' in declaration of `_iob' C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:176: error: conflicting types for '_iob' C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:176: error: previous declaration of '_iob' was here C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:176: error: conflicting types for '_iob' C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:176: error: previous declaration of '_iob' was here C:/Program Files/MinGW/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:176: warning: data definition has no type or storage class and so on for several thousand lines. Has anyone seen this problem? Bill

2 1

predef::`== broken?
by Martin Nilsson (DivX Networks) ＠ Pike (-) developers forum 16 Jan '05

16 Jan '05

Pike v7.7 release 13 running Hilfe v3.5 (Incremental Pike Frontend) > ADT.Relation.Binary(); (1) Result: ADT.Relation.Binary(0 0) > object x=_; Compiler Error: 1:Error comparing constants. Compiler Exception: C stack overflow. ... Binary.pike: int(0..1) `==(mixed rel) { if (predef::`==(rel, this)) return 1; // This is never reached.

8 20

pike trace
by Kaos 16 Jan '05

16 Jan '05

Just noticed the very nice feature of trace :) A couple of questions though: a) module.pmod as file name is not very helpfull. Would it be possible to back-up one step in the directory tree when the node is module.pmod to get a sensible filename in the log? b) Is there any tools around for parsing the trace output into some more readable format/graphs? //K

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Re: predef::`== broken?
by Henrik Grubbstr�m (Lysator) ＠ Pike (-) developers forum 14 Jan '05

14 Jan '05

>>That check has already been performed when lfun::`==() gets called. >> >Does this mean, if lfun::`==() gets called the compared objects are >actually NOT the same object? Otherwise the call would have been avoided? Correct. >--- Ludger Merkens

1 0

segfault with ADT.CircularList
by Martin Bähr 13 Jan '05

13 Jan '05

Pike v7.6 release 7 running Hilfe v3.5 (Incremental Pike Frontend) > ADT.CircularList circular=ADT.CircularList( ({ 1,2,3,4,5 }) ); > (array)circular; (1) Result: ({ /* 5 elements */ 1, 2, 3, 4, 5 }) > circular->push_front(circular->pop_back()); (2) Result: 0 > (array)circular; Segmentation fault whooops! other operations do seem to work. greetings, martin.

1 0

Remote.Obj
by Kaos 13 Jan '05

13 Jan '05

There's a `exists' function in Remote.Obj that is unaccessible without a minor patch. Index: lib/modules/Remote.pmod/module.pmod =================================================================== RCS file: /cvs/Pike/7.6/lib/modules/Remote.pmod/module.pmod,v retrieving revision 1.5 diff -r1.5 module.pmod 973c973 < return get_function(f); --- > return ::`[](f) || get_function(f); 979c979 < return get_function(f); --- > return ::`->(f) || get_function(f); //K

1 0

lambda's
by Kaos 13 Jan '05

13 Jan '05

Hi, The return value from a lambda gets "int'ified" so I am not able to distinguish a "return 0;" from a "return UNDEFINED;". I guess it's not too hard to fix, but might break something? Is there a workaround.. what can I do? Ex: Pike v7.7 release 9 running Hilfe v3.5 (Incremental Pike Frontend) > function a = lambda( int b ){ if( b > 0 ) return b-1; if( b == 0 ) return UNDEFINED; }; > a(2); (2) Result: 1 > a(1); (3) Result: 0 > zero_type(_); (4) Result: 0 > a(0); (5) Result: 0 > zero_type(_); (6) Result: 0 // would like zero_type to return 1 here! > a(-1); (7) Result: 0 > zero_type(_); (8) Result: 0 // I expected UNDEFINED, since nothing was > // returned from the lambda.. //K

5 11

challenge: shorter code?
by Mirar ＠ Pike developers forum 12 Jan '05

12 Jan '05

You triggered so many bugs with that :) 1) | > for(array p=({1});;p=(p+({0}))[*]+(({0})+p)[*])write(p[*]+"\n"); | Compiler Error: 1:Bad argument 1 to safe_write. | Compiler Error: 1:Expected: function(string, mixed ... : int) | Compiler Error: 1:Got : function(array(string | mixed | void) : void | mixed) 2) | > for(array p=({1});;p=(p+({0}))[*]+(({0})+p)[*])write(""+p[*]+"\n"); | Compiler Error: 1:Bad argument 2 to `+. | Compiler Error: 1:Expected: !function(!(object | mixed) ... : mixed) & function | function(int, int ... : int) | !function(!float ... : mixed) & function(int | float, int | float ... : float) | !function(!string ... : mixed) & function(string | int | float, string | int | float ... : string) | function((0=array), (1=array) ... : 0 | 1) | function((0=mapping), (1=mapping) ... : 0 | 1) | function((0=multiset), (1=multiset) ... : 0 | 1) | Compiler Error: 1:Got : function(array(string | mixed | void), string : void | mixed) 3) after a while, it will (when not run in hilfe) output | 1 | ... | 67327446062800 | 88749815264600 | 108043253365600^@121548660036300^@1264106064377512154866003630108043253365608874 | 9815264600 ^^ ^^ | 67327446062800 | ... and other mysterious characters. (adding devel) / Mirar Previous text: >12785094 2005-01-11 05:48 /11 lines/ Brevbäraren >Recipients: Pike (-) importmöte för mailinglistan >Subject: challenge: shorter code? >-------------------------------------------------------------------- >Can anyone make this shorter? > >for(array p=({1});;p=(p+({0}))[*]+(({0})+p)[*])write(p[*]+"\n"); > >-- >----------------------------------------------------------------------------- >| Phil Howard KA9WGN | http://linuxhomepage.com/ http://ham.org/ | >| (first name) at ipal.net | http://phil.ipal.org/ http://ka9wgn.ham.org/ | >----------------------------------------------------------------------------- > > > >(12785094) /Brevbäraren/-------------------------------------------- >

1 0

arrays with sscanf
by Martin Bähr 12 Jan '05

12 Jan '05

hi, i seem to be missing something here, can anyone explain why the following: array_sscanf("foo % 1 2 3 fum", "%s %% %{%d%} %s"); yields ({ "foo", ({ ({ 1 }), ({ 2 }), ({ 3 }) }), "fum" }) and not ({ "foo", ({ 1, 2, 3 }), "fum" }) ? greetings, martin.

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