Pike-devel November 2002

pike-devel@lists.lysator.liu.se

6 participants
56 discussions

Deprecation(?)
by Martin Nilsson (hehe Torgny) ＠ Pike (-) developers forum 28 Nov '02

28 Nov '02

I'd really like to remove the last(?) place of magically occuring efuns: the ones in the spider module. Anyone against this act of violence? Naturally there will be compatibility gunk added.

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Pike 7.3 and Darwin.....
by Xavier Beaudouin 27 Nov '02

27 Nov '02

Hello there, It seems that now Pike 7.3 has been broken on Darwin. Some changes made the 2 last week show us that now it looks around _poll in link part. It was working and correctly detecting this before.... But... not now. Can this be fixed.... ? /Xavier

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Direct memory access
by David Hedbor ＠ Pike developers forum 25 Nov '02

25 Nov '02

Scenario: A chunk of memory allocated in C that if possible should be modified directly. Is this at all possible in Pike? This is related to the discussion of the efficiency of especially the (planned) set_pixel/get_pixel methods in SDL, but not only. The SDL problem is even tricker since, depending on bpp, you need to change 1, 2, 3 och 4 bytes at once. Since Pike only has (32 bit) 'signed int' this probably isn't viable. Also, correct me if I'm wrong, no matter the method there would still be a method call for each access, unless there was a deeper, lower-level support in the interpreter for this? In a way it's non-shared array support, where the accessed memory could be preallocated (SDL surface memory, mmap etc) or not. Any comments would be welcome.

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parent object
by Marcus Comstedt (ACROSS) (Hail Ilpalazzo!) ＠ Pike (-) developers forum 22 Nov '02

22 Nov '02

How do you get the parent object from C? I have tried LOW_PARENT_INFO(Pike_fp->current_object, p) with p being both the enclosed and enclosing programs, but I don't seem to get the right value. (And yes, I have set PROGRAM_USES_PARENT on the enclosed program.)

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checking for /sw/include... fails on Darwin MacOS X/Jaguar
by Marcus Agehall (Tr�dl�s) ＠ Pike (-) developers forum 21 Nov '02

21 Nov '02

Spännande, jag ser bara del 2 hos mig själv... ;)

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checking for /sw/include... fails on Darwin MacOS X/Jaguar
by Xavier Beaudouin 21 Nov '02

21 Nov '02

Hello, Seems that autoconf outputs wrong code to check for includes :/ The following autoconf code : AC_TRY_CPP([include <stdio.h>], ... Give on my machine this test. : configure:18279: checking /sw/include configure:18306: gcc -E -I/sw/include conftest.c configure:18303: illegal external declaration, missing `;' after `>' cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode configure:18312: $? = 0 configure: failed program was: #line 18302 "configure" #include "confdefs.h" include <stdio.h> configure:18336: result: fails So it seems it is missing a '#' .... Is there any Darwin specific problem or autoconf problem ? (I used pikefarm generated tarball). The machine is currently on pikefarm (pandora.home.oav.net). /Xavier

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Dumping modules outside of install.pike - how to?
by Marek Habersack (Grendel) ＠ Pike (-) developers forum 21 Nov '02

21 Nov '02

As mentioned in the other posting, I have the following problem: /usr/lib/pike7.3/7.3.58/modules/Standards.pmod/PKCS.pmod/RSA.pmod.o:-: Warning: Decode failed: Failed to decode program "/tmp/buildd/pike7.3-7.3.58/lib/modules/Crypto/rsa.pike". it happens because I have to redump the PKCS module in the Debian compliation process, otherwise the .o files in PKCS.pmod will have incorrect data. I'm dumping the modules with a line similar to that used from within install.pike (see lines 51, 52 and 182 of the packaging/debian/rules file) and yet the dumped files have incorrect paths embedded in them. I'd appreciate some help on that one...

2 1

Gmp
by Hedda (www.elftown.com) ＠ Pike (-) developers forum 20 Nov '02

20 Nov '02

(Not tested with the absolutely latest Pike) The Gmp-functions don't have a correct behaviour: > pow(2, pow(2, pow(2, pow(2, pow(2,pow(2,2)))))); Compiler Error: 1:Error evaluating constant. Compiler Exception: Too many argumentsUnknown program: pow(HilfeCompileHandler,-1,-1) There are only two arguments there! And there should be some sort of space in "argumentsUnknown" > pow(2, 65536423423423423); (7) Result: 65536423423423423 > 8->pow(34534534534534534534534534545); Gmp.mpz->pow: Non int exponent. /usr/local/pike/7.3.43/lib/modules/Gmp.so.bignum: pow(34534534534534534534534534545) HilfeInput:1: ___HilfeWrapper() Seems OK, but "Non int exponent." could be changed to "Exponent bigger than a non-bignum integer.". > 8->pow(34534534); Segmentation fault Not good! I think this is an out of memory problem, so you have to change 34534534 to something that works on your computer.

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Giuseppe Peano was here...
by Marcus Comstedt (ACROSS) (Hail Ilpalazzo!) ＠ Pike (-) developers forum 19 Nov '02

19 Nov '02

I just discovered this rather cute property of the type system: > _typeof(0); (11) Result: zero > _typeof(_typeof(0)); (12) Result: type(zero) > _typeof(_typeof(_typeof(0))); (13) Result: type(type(zero)) > _typeof(_typeof(_typeof(_typeof(0)))); (14) Result: type(type(type(zero))) > _typeof(_typeof(_typeof(_typeof(_typeof(0))))); (15) Result: type(type(type(type(zero)))) > I wonder if this can be used to implement integer arithmetic by just using the type system? :-) Unfortunately, typeof() doesn't seem to be as clever: > typeof(0); (16) Result: zero > typeof(typeof(0)); (17) Result: type(mixed) > typeof(typeof(typeof(0))); (18) Result: type(mixed) > typeof(typeof(typeof(typeof(0)))); (19) Result: type(mixed) >

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Autodoc
by Marcus Comstedt (ACROSS) (Hail Ilpalazzo!) ＠ Pike (-) developers forum 19 Nov '02

19 Nov '02

In my autodoc, I have the following: /*! @decl typedef int|string Foo *! *! Blah blah blah. */ In the HTML pages however, it comes out as Typedef Foo Missing content () Description Blah blah blah. Why does it say "Missing content ()" instead of "typedef int|string Foo"? It is me or AutoDoc who is doing something wrong?

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Pike-devel November 2002