»ö« Welcome to Perl 6! | perl6.org/ | evalbot usage: 'p6: say 3;' or rakudo:, or /msg camelia p6: ... | irclog: irc.perl6.org or colabti.org/irclogger/irclogger_logs/perl6 | UTF-8 is our friend!
Set by moritz on 22 December 2015.
00:17 dct joined 00:28 dct left 00:30 Herby_ joined
Herby_ o/ 00:30
\o 00:33
timotimo heyo 00:35
Herby_ timotimo: how goes it?
timotimo bearable, and you? 00:36
Herby_ I have the next few days off, so I can't complain too much
can I call python modules in Perl 6, on windows 10? 00:47
00:51 Herby_ left 01:02 aborazmeh joined, aborazmeh left, aborazmeh joined 01:13 markong left 01:15 TeamBlast joined 01:16 nativecallable6 joined 01:17 unicodable6 left, quotable6 left, unicodable6 joined, quotable6 joined
[Coke] it got up to 10ºC today here, was soooo warm compared to last few weeks. 01:21
01:23 sivoais joined
timotimo .tell herby_ sorry i disappeared for RSI break and didn't come back for a whole while 01:23
yoleaux timotimo: I'll pass your message to herby_.
01:30 wamba left 01:35 cdg_ joined 01:39 cdg left 01:40 cdg_ left, troys is now known as troys_ 01:57 awwaiid joined 02:06 aindilis left 02:20 aindilis joined 02:45 ilbot3 left 02:54 lookatme joined 02:56 eliasr left 02:58 epony left 03:00 ilbot3 joined, ChanServ sets mode: +v ilbot3 03:11 epony joined 03:12 epony left 03:13 epony joined 03:18 troys_ is now known as troys 03:24 llfourn joined 03:28 epony left 03:32 epony joined 03:40 cdg joined 03:51 troys is now known as troys_ 03:57 bloatable6 joined 04:21 GregDonald left, GregDonald_ joined 04:25 dj_goku joined 04:35 a3r0 joined 04:42 Cabanossi left 04:43 Cabanossi joined 04:51 dj_goku left 05:08 dudebbn left 05:09 dudebbn joined 06:00 cdg left
moritz o/ 06:03
06:06 epony left 06:09 astj_ joined, astj left 06:17 epony joined 06:18 khw left, epony left 06:19 epony joined 06:24 aborazmeh left 06:26 AlexDaniel` joined 06:27 ilmari[m] joined, Matthew[m] joined 06:37 troys_ is now known as troys 06:53 darutoko joined 06:56 troys left 07:12 dwarring left
Geth doc/master: 4 commits pushed by (Luca Ferrari)++ 07:12
07:37 espadrine_ left 07:41 abraxxa joined, lowbro joined, lowbro left, lowbro joined
wictory[m] Hi! How often does people here run "zef nuke"? 07:46
07:47 domidumont joined 07:51 domidumont left
moritz like, twice a year? 07:52
07:52 domidumont joined 07:54 Wanderer68 joined 07:55 domidumont left 08:00 cdg joined 08:05 cdg left, rindolf joined 08:09 ckraniak joined, domidumont joined
wictory[m] I get sometimes that "zef install --force-install ." does not have an effect. The annoying thing is that it sometimes takes some to figure that out. I often figure it out by putting a "foobar".say; statement somewhere in a library and expect an output from somewhere, if theres no output I probably need to nuke everything. 08:16
Is this the experience of other too? :)
*others
08:29 lowbro left 08:35 ckraniak left 08:41 lowbro joined, lowbro left, lowbro joined 08:46 rindolf left 08:49 rindolf joined 08:51 ckraniak joined 08:56 rindolf left 08:57 rindolf joined 09:04 domidumont left 09:05 domidumont joined 09:06 zakharyas joined 09:07 dakkar joined 09:10 cdg joined 09:11 cdg_ joined 09:12 lookatme left 09:14 cdg left 09:16 cdg_ left
Geth doc/master: 4 commits pushed by (Luca Ferrari)++ 09:18
09:23 stmuk joined 09:25 stmuk_ left
Geth doc: a236911ff5 | (Luca Ferrari)++ | doc/Language/traps.pod6
Add Pair/Scalar trap and link to the Pair documentation.

As per discussion on issue #1728, after the commits about Pair.freeze it should be better to have this behavior listed also as 'trap'.
Close #1728		 09:31
synopsebot Link: doc.perl6.org/language/traps
09:32 domidumont left 09:33 domidumont joined 10:30 astj_ left 10:31 astj joined 10:35 a3r0 left, a3r0 joined, astj left 10:43 wamba joined 10:44 llfourn left, astj joined, llfourn joined 10:48 astj left
jkramer m: class Foo { has Str @.bar where *.elems == 3 }; Foo.new(bar => <one two three>).note 11:08
camelia Type check failed in assignment to @!bar; expected <anon> but got Str ("one")
in submethod BUILDALL at <tmp> line 1
in block <unit> at <tmp> line 1
jkramer Why does this not work?
The where thingy seems to add another typecheck that for some reason fails
masak m: class Foo { has @.bar where *.elems == 3 }; say Foo.new(bar => <one two three>) 11:11
camelia Type check failed in assignment to @!bar; expected <anon> but got Str ("one")
in submethod BUILDALL at <tmp> line 1
in block <unit> at <tmp> line 1
masak m: class Foo { has @.bar where *.chars == 3 }; say Foo.new(bar => <one two three>)
camelia Type check failed in assignment to @!bar; expected <anon> but got Str ("three")
in submethod BUILDALL at <tmp> line 1
in block <unit> at <tmp> line 1
masak m: class Foo { has @.bar where *.chars == 3 }; say Foo.new(bar => <one two blb>) 11:12
camelia Foo.new(bar => Array[<anon>].new("one", "two", "blb"))
masak seems the `where` is typechecking each element of the array
jkramer Ooooh
masak which I'm pretty sure is not the way it's s'posed to work
jkramer Hmm, that doesn't seem right
masak at least it feels surprising to me
jkramer Yup
masak feel free to submit a rakudobug
jkramer I will, thanks 11:15
11:41 Kaiepi left 11:46 committable6 joined
buggable New CPAN upload: Sub-Util-0.0.1.tar.gz by ELIZABETH cpan.metacpan.org/authors/id/E/EL/...0.1.tar.gz 11:48
11:55 raschipi joined 11:58 zakharyas left 12:14 dakkar left
Geth doc: 873dc76745 | (Luca Ferrari)++ | doc/Language/terms.pod6
Improve constant lexical example.

Provide an example of how a 'my constant' is visible only within a block and can therefore override the 'our' scoped constant.
Add also an insight about the compilation error when referencing an out of scope 'my constant'.		 12:18
synopsebot Link: doc.perl6.org/language/terms
12:26 Kaiepi joined
Geth doc: c0184ade3c | (Tom Browder)++ (committed using GitHub Web editor) | doc/Language/pod.pod6
add note about bigint capability
 12:50
synopsebot Link: doc.perl6.org/language/pod
jkramer Is there a shortcut for creating a copy of an object with only one/some values changed, instead of copying all unchanged values manually? I.e. Foo.new(:a(self.a), :b(self.b), ... :changed-attribute(123)) 12:51
I guess I can somehow turn the object into a hash and use that as argument?
raschipi You need to implement a copy constructor manually 12:52
jkramer Found it 12:55
Mu has .clone which allows to override public attributes 12:56
So self.clone(:changed-attr(123)) works
raschipi Just remember that is a very shallow copy.
jkramer Yup, but that's ok for my purposes right now
13:00 alexk6 joined 13:01 domidumont left
alexk6 m: subset Int8 of Int where -0x80 <= * <= 0x7F; my $t = (Int8); given $t { when (Int8) { say "ok" }}; 13:02
camelia ok
alexk6 subset Int8 of Int where -0x80 <= * <= 0x7F; my $t = (Int); given $t { when (Int8) { say "ok" }};
m: subset Int8 of Int where -0x80 <= * <= 0x7F; my $t = (Int); given $t { when (Int8) { say "ok" }};
camelia Invocant of method 'Bridge' must be an object instance of type 'Int', not a type object of type 'Int'. Did you forget a '.new'?
in block <unit> at <tmp> line 1
13:03 domidumont joined 13:05 domidumont left 13:06 domidumont joined, pilne left
alexk6 does anyone know why this gives me an error? 13:07
m: subset Int8 of Int where -0x80 <= * <= 0x7F; my $t = (Int); if $t eqv (Int8) { say "ok" }; # this works 13:10
camelia ( no output )
13:10 iviv joined
raschipi The message is less than awesome but Int doesn't fit the Int8 pidgeonhole. 13:11
Like it says on the tin, it's a subset
13:12 Spot__ joined
raschipi Or you just wanted it to fail quietly like the other case? 13:13
alexk6 raschipi: yes, i just wanted to do something depending on the type 13:16
raschipi m: subset Int8 of Int where -0x80 <= * <= 0x7F; my $t = Int.new; given $t { when (Int8) { say "ok" }};
camelia ok
timotimo checking eqv doesn't check things like constraints at all
that's why it doesn't explode to try the Int against that 13:17
alexk6 but why does it work then with Int8? 13:18
m: subset Int8 of Int where -0x80 <= * <= 0x7F; my $t = (Int8); given $t { when (Int8) { say "ok" }};
camelia ok
timotimo now you're checking type inheritance 13:19
and Int8 trivially derives from Int8 13:20
13:27 domidumont1 joined 13:28 zakharyas joined
raschipi timotimo: where would be the best place to catch that exception? 13:29
13:29 domidumont left
timotimo m: subset Int8 of Int where try -0x80 <= * <= 0x7F; my $t = (Int); given $t { when (Int8) { say "ok" }}; 13:33
camelia Invocant of method 'Bridge' must be an object instance of type 'Int', not a type object of type 'Int'. Did you forget a '.new'?
in block <unit> at <tmp> line 1
timotimo m: subset Int8 of Int where { try -0x80 <= $_ <= 0x7F }; my $t = (Int); given $t { when (Int8) { say "ok" }};
camelia ( no output )
timotimo i'd do it like that ^
alternatively
m: subset Int8 of Int:D where -0x80 <= * <= 0x7F; my $t = (Int); given $t { when (Int8) { say "ok" }};
camelia ( no output )
raschipi nice 13:34
13:36 GregDonald_ is now known as GregDonald
alexk6 timotimo++ 13:43
13:44 wamba left 13:45 wamba joined 13:56 alexk6 left 14:01 GregDonald left, GregDonald joined, zakharyas left 14:02 cdg joined 14:07 cdg left, cdg joined 14:10 zakharyas joined 14:22 domidumont joined 14:25 domidumont1 left 14:26 zakharyas left, zakharyas joined 14:44 zakharyas1 joined, zakharyas left 14:45 zakharyas1 left 14:46 zakharyas joined 14:47 squashable6 left, squashable6 joined 14:49 zakharyas left 14:51 zakharyas joined, astj joined 14:56 astj left 15:14 zakharyas left 15:15 zakharyas joined, troys joined
jkramer Is there some neat hyper-operator syntax sugar for doing simple math operations? I'd like to do something like @numbers>>.-(33) 15:20
masak m: my @numbers = 100, 200, 300; say @numbers >>->> 33 15:21
camelia [67 167 267]
masak m: my @numbers = 100, 200, 300; say @numbers »-» 33
camelia [67 167 267]
jkramer Sweet, thanks! 15:22
timotimo m: my @numbers = 100, 200, 300; say -<<@numbers
camelia [-100 -200 -300]
15:36 comborico1611 joined 15:49 zakharyas left 15:57 domidumont left 16:01 troys is now known as troys_ 16:03 zakharyas joined 16:04 markong joined 16:05 stmuk_ joined 16:06 natrys joined 16:07 stmuk left 16:14 Zoffix joined
Zoffix m: subset Int8 of Int where { try -0x80 <= $_ <= 0x7F }; for ^50_000 { Int ~~ Int8; 42 ~~ Int8 }; say now - INIT now 16:19
camelia 1.713140481
16:19 leont joined
Zoffix m: subset Int8 of Int where !.DEFINITE || -0x80 <= $_ <= 0x7F; for ^50_000 { Int ~~ Int8; 42 ~~ Int8 }; say now - INIT now 16:19
camelia 0.37768372
Zoffix m: subset Int8 of Int where .WHAT =:= Int || -0x80 <= $_ <= 0x7F; for ^50_000 { Int ~~ Int8; 42 ~~ Int8 }; say now - INIT now 16:20
camelia 0.3785938
leont What is the install logic around bin/? In particular can I put .pod's in there or not? 16:22
16:23 troys_ is now known as troys
Zoffix m: use nqp; subset Int8 of Int where nqp::isconcrete($_) && nqp::isfalse(nqp::isbig_I(nqp::decont($_))) && nqp::isge_i(-0x80, $_) && nqp::isge_i($_, 0x7F); for ^50_000 { Int ~~ Int8; 42 ~~ Int8 }; say now - INIT now 16:24
camelia 0.5124472
Zoffix Kinda surprised $_ is conted there :\
raschipi leont: /bin is just for what a user will call in the command line as a command. 16:26
But you'd use /usr/bin unless it's a very basic system command. 16:27
ilmari raschipi: I presume leont meant bin/ inside a perl6 distribution repo/tarball, not /bin on the filesystem
raschipi Ops
raschipi goes get more coffee. 16:28
Zoffix leont: not aware of any official docs on the topic, but looks like zef does install everything it finds: github.com/ugexe/zef/blob/master/l...m6#L73-L90
leont Ah, good to know 16:29
leont received a PR that adds a bin/README.pod, and I was wondering if that would blow up
16:29 hythm joined 16:30 wamba left 16:35 zakharyas left 16:36 Zoffix left 16:38 SHODAN joined, roguelazer joined, R0b0t1 joined, notbenh_ joined, eater joined 16:39 squashable6 left, bloatable6 left, unicodable6 left, nativecallable6 left, greppable6 left, bloatable6 joined, nativecallable6 joined, unicodable6 joined, greppable6 joined, squashable6 joined 16:40 lowbro left, committable6 left, reportable6 left, statisfiable6 left, releasable6 left, evalable6 left 16:53 khw joined 16:58 raschipi left 17:01 raschipi joined 17:07 astj joined 17:11 stmuk joined, astj left 17:14 stmuk_ left 17:23 coverable6 left, benchable6 left, coverable6 joined, benchable6 joined, ChanServ sets mode: +v benchable6 17:29 Praise- is now known as Praise 17:36 troys is now known as troys_ 17:39 bisectable6 left, bisectable6 joined 17:46 eliasr joined
titsuki m: use Perl:ver<6.*>; 18:03
camelia ===SORRY!===
Perl is a builtin type, not an external module
titsuki is this a bug?
[Coke] no, Perl is a builtin type.
if you want to specify a version, that's not the syntax, I don't think.
m: say $*PERL.^name; 18:04
camelia Perl
titsuki This test says the above one works: github.com/perl6/roast/blob/master...e-perl-6.t
[Coke] that test isn't run.
github.com/rakudo/rakudo/blob/mast...ctest.data 18:05
it's from 2009 and probably speculative and can probably be removed.
18:05 Ven`` joined
titsuki Coke: I see. thanks! 18:06
[Coke] m: use 5;
camelia 5===SORRY!5=== Error while compiling <tmp>
Undeclared routine:
use used at line 1
[Coke] m: use v5;
camelia 5===SORRY!5=== Error while compiling <tmp>
No compiler available for Perl v5
at <tmp>:1
------> 3use v57⏏5;
[Coke] m: use v6; 18:07
camelia ( no output )
18:15 Kaiepi left 18:23 Kaiepi joined 18:26 Kaiepi left 18:28 Ven`` left 18:30 setty1 joined 18:34 Cabanossi left, solarbunny left, mst left, mst joined, darutoko left 18:35 Cabanossi joined 18:36 yoleaux left 18:37 yoleaux joined, ChanServ sets mode: +v yoleaux, coverable6 left, coverable6 joined, quotable6 left 18:38 quotable6 joined 18:39 protium joined 18:40 greppable6 left, releasable6 joined, ChanServ sets mode: +v releasable6, nativecallable6 left, greppable6 joined, reportable6 joined 18:41 statisfiable6 joined, ChanServ sets mode: +v statisfiable6, nativecallable6 joined
Geth marketing: 9f4c3dab32 | (Zoffix Znet)++ | 2 files
Apply changes from Mark Keating

  - For FOSDEM 2018 prints
  - Bleed fixes and print marks; no content changes		 18:42
18:48 comborico1611 left 18:49 solarbunny joined 18:50 comborico1611 joined 18:56 Wanderer68 left 19:00 armin_ is now known as armin 19:37 cdg left 19:38 cdg joined 19:41 Herby_ joined
Herby_ o/ 19:41
yoleaux 01:23Z <timotimo> Herby_: sorry i disappeared for RSI break and didn't come back for a whole while
19:42 cdg left
Voldenet m: my uint8 $x = 2; my uint8 $y = 4; $y = $y xor $x; say $y 19:43
camelia 4
Voldenet am I doing something wrong, or is 2 xor 4 really 4? 19:44
AlexDaniel Voldenet: it's logical xor 19:45
although… wait what…
Voldenet m: my uint8 $x = 2; my uint8 $y = 4; $y = $y +^ $x; say $y
camelia 6
Voldenet Ah
magic operators
AlexDaniel yeah that's what you were looking for, but what's 4?
Voldenet 4 is a num... wait 19:46
AlexDaniel aaaaaaaaaaaah
Voldenet >Returns the operand that evaluates to True in boolean context
AlexDaniel m: my uint8 $x = 4; my uint8 $y = 2; $y = $y xor $x; say $y
camelia 2
AlexDaniel yeah
m: my uint8 $x = 4; my uint8 $y = 2; $y = ($y xor $x); say $y
camelia Cannot unbox a type object (Nil) to an unsigned int.
in block <unit> at <tmp> line 1
19:47 xi- joined 19:48 Zoffix joined
Zoffix ZOFFLOP: hung stresstest (looks like hung on t/spec/S17-promise/nonblocking-await.t) 19:48
AlexDaniel Voldenet: R#1389
synopsebot R#1389 [open]: github.com/rakudo/rakudo/issues/1389 [LTA] No “Useless use” warning for xor
Voldenet Oh, thanks. 19:49
Zoffix oops, wc 20:01
El_Che releasable6: status 20:02
releasable6 El_Che, Next release in 7 days and ≈22 hours. No blockers. Unknown changelog format
20:11 Zoffix left 20:23 pilne joined 20:24 raschipi left 20:34 xi- left, xi- joined 20:42 breinbaas joined
AlexDaniel m: my uint8 $x = 2; my uint8 $y = 4; $y = $y xor $x; say $y 20:50
camelia 4
AlexDaniel e: my uint8 $x = 2; my uint8 $y = 4; $y = $y xor $x; say $y
20:50 |oLa| joined, evalable6 joined
AlexDaniel e: my uint8 $x = 2; my uint8 $y = 4; $y = $y xor $x; say $y 20:50
evalable6 WARNINGS for /tmp/9jgKModjC_:
4
Useless use of $x in sink context (line 1)
AlexDaniel Voldenet: ↑ there (same snippet) 20:51
Zoffix++
moritz m: say 2 xor 4 21:01
camelia WARNINGS for <tmp>:
2
Useless use of constant integer 4 in sink context (line 1)
TEttinger ?
moritz is it because it can constant-fold the arguments, and know that the second operand won't be used?
m: say 0 xor 4
camelia WARNINGS for <tmp>:
0
Useless use of constant integer 4 in sink context (line 1)
moritz m: say 4 xor 0 21:02
camelia WARNINGS for <tmp>:
4
Useless use of constant integer 0 in sink context (line 1)
TEttinger isn't 2 xor 4 6?
jnthn moritz: Precedence, I think
AlexDaniel TEttinger: it's logical xor, you're talking about +^
jnthn It compiles as (say 4) xor 0
lizmat also, xor is logical
moritz m: say (2 xor 4)
camelia Nil
moritz m: say (0 xor 4)
camelia 4
moritz jnthn: right 21:03
TEttinger of course it's +^, that totally makes sense... uh...
is bitwise xor the same as addition in galois field 2? 21:04
or carryless addition?
21:05 comborico joined
AlexDaniel sometimes someone just says something… and I realize that I'm so stupid :D 21:05
moritz TEttinger: carryless addition, yes 21:06
TEttinger gotcha
moritz AlexDaniel: nah, it's just jargon
TEttinger I was wondering why I see circled plus as the sign for it
AlexDaniel: I don't understand galois field stuff either, I'm going to need to at some point
moritz that's just with modulus, right? 21:07
TEttinger I think so, per bit maybe?
AlexDaniel what's with circled plus? Wasn't it just a circled disjunction, where a circle stands for… whatever it does
I mean, there's ⊻ also, I never thought there's any logic behind the symbols :) 21:08
TEttinger like in C, operations on uint8_t will operate in GF(256)
I think
but that's also called "do stuff mod 256"
so I'm not sure where mr./ms./dr. galois comes in
21:09 cdg joined
geekosaur worked out how to describe such subsets mathematically, probably 21:09
TEttinger AlexDaniel: there's confusingly different usage of various terms for bitwise XOR in mathy CS papers 21:10
AlexDaniel OK the original question isn't too bad. Wikipedia++ 21:13
TEttinger I saw a circled plus and circled x used here www.pcg-random.org/pdf/hmc-cs-2014-0905.pdf 21:14
page 30 or 32
21:16 comborico left
AlexDaniel TEttinger: as for +^ making sense, it's a regular c-style ^ with + in front of it to indicate that's it's a numeric thingie. ^ itself is used for Junctions, with a similar logic 21:21
TEttinger: same goes for all other ops
like +| and +& 21:22
maybe this should be explained in more detail in our docs?
i.e. the difference between `^`, `+^`, `xor` 21:23
21:23 AndChat|688961 joined, comborico1611 left
masak .oO( "strangely consistent" operators ) 21:25
TEttinger it makes more sense than JS needing ~~ before using any bitwise ops on numbers 21:26
I've also seen ^^^ and ||| used to refer to the bitwise versions in other langs 21:27
21:29 comborico joined
dylanwh obviouls you should need one symbol per byte. ^^^^ for 32bit integers and ^^^^^^^^ for 64bit. 21:34
Voldenet That's pretty cool, actually, but what if I needed a xor for nibbles? 21:36
geekosaur `
:p
Voldenet ah, ´ and ` 21:37
perfectly sound
dylanwh and 16 <'s for a 64bit bit-shift 21:40
dylanwh might actually make this as an esolang. XD 21:41
21:41 troys_ is now known as troys
geekosaur language designed for an ancient bit-slice cpu? 21:43
dylanwh yes 21:46
21:52 rindolf left 21:58 rindolf joined 22:06 Knot0nline joined 22:12 mempko joined 22:18 TreyHarris left 22:22 comborico left, TreyHarris joined 22:31 setty1 left 22:37 rindolf left 22:38 Manifest0 left 22:39 cdg left, Manifest0 joined 22:40 cdg joined 22:42 natrys left 22:44 cdg left
tbrowder anyone have any ideas to help track down a malformed utf8 char in an otherwise ASCII file? 23:03
23:04 cdg joined 23:05 Knot0nline left
jnthn m: Buf.new(ord('a'), ord('a'), 0xc3, 0x28, ord('a')).decode('utf-8') 23:06
camelia Malformed UTF-8 at line 1 col 3
in block <unit> at <tmp> line 1
jnthn So, slurp($file, :bin).decode('utf-8')
23:07 Knot0nline joined 23:09 cdg left 23:17 AndChat|688961 left, comborico1611 joined
tbrowder jnthn: thanks! 23:20
23:21 troys is now known as troys_ 23:23 cdg joined 23:28 kerframil joined 23:31 cdg left 23:32 cdg joined 23:33 cdg left, cdg joined 23:46 dct joined
tusooa AlexDaniel: I think it is because xor is looser than function call, just like and/or? 23:47
AlexDaniel yeah
23:50 espadrine_ joined

Powered by Cro and the Raku® Programming Language.

Please report any issues / comments / feature requests as an issue on App::Raku::Log.

Thank you!