--- Log opened Fri Oct 15 00:00:10 2010
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00:16 < exch> Am I correct in assuming to that using TLS/SSL on UDP is a
pointless exercise?  A UDpConn can be wrapped around a UDPConn, but this causes
some problems with accepting incoming connections.  Eg, there net.Conn interface
has no facility to determine the address stored in each individual UDP datagram.
UDPConn has a separate ReadFromUDP() method for this purpose.
00:17 < exch> *A tls.Conn can be wrapped around a UDPConn
00:18 < exch> I'm not sure if this is a deficiency in the net/tls interface
design, or the whole idea of ssl on UDP makes no sense to begin with..
considering it's an inherently unreliable protocol
00:20 < uriel> tls over udp pretty much makes no sense
00:20 < uriel> there seems to be an RFC that specifies some variant of tls
that would work for udp, but never heard of anyone implementing it
00:20 < uriel> see
http://en.wikipedia.org/wiki/Datagram_Transport_Layer_Security
00:20 < exch> hmm fair enough.  I figured as much
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00:35 < exch> urgh.  I'm about inclined to just stick with TCP for this
particular job.  Not sure why I opted for UDP in the first place.  It probably
seemed more interesting (it is really).
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00:48 < exch> patents galore:
http://arstechnica.com/tech-policy/news/2010/10/patent-troll-takes-over-the-web-can-it-be-stopped.ars
00:48 < exch> in short "patent troll company patents mouse roll-over images
on websites, demands $80K for their usag"
00:48 < exch> +e
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00:48 < skelterjohn> if this will encourage websites to not have roll-over
images, i'm all for it
00:49 < exch> hehe fair enough
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00:54 < plexdev> http://is.gd/g2tf1 by [Andrew Gerrand] in go/src/pkg/log/
-- log: fix custom output bug
00:55 < nsf> hehe, in my country software patents do not exist, thank god
00:56 < nsf> although it's worth saying that there are other issues
00:56 < nsf> sweet dreams, good night :)
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01:11 < plexdev> http://is.gd/g2umF by [Rob Pike] in go/src/pkg/log/ -- log:
roll back deprecation of old API to apply fix to log.Output in public release.
01:11 < plexdev> http://is.gd/g2umI by [Andrew Gerrand] in 2 subdirs of go/
-- release.2010-10-13.1
01:11 < plexdev> http://is.gd/g2umR by [Andrew Gerrand] in go/ -- tag
release.2010-10-13.1
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02:19 < uriel> adg: it would be nice to either have a post about the latest
releases in the official Go blog, or having a news page
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02:20 < uriel> or just have a link to
http://golang.org/doc/devel/release.html somewhere in the front page
02:23 < uriel> btw, I don't know how updates to the website work
02:24 < uriel> but this still looks outdated:
http://golang.org/doc/devel/roadmap.html (NaCL and C callback support are both
done AFAIK, and I think I saw you commited a change to update the roadmap
accordingly)
02:25 <@adg> uriel: no, i haven't committed the change yet
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02:25 <@adg> uriel: i am wondering whether the simplest thing is to create
an rss-feed of doc/devel/release.html
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02:25 <@adg> uriel: i thought about creating another mailing list,
golang-announce
02:26 < uriel> dunno, the blog currently doesn't get that many updates, so
having new releases posted there would work fine
02:26 < uriel> a golang-announce list would certainly be nice, but I don't
think it would be a substitute for some place in the website that collected
similar news items (mostly releases I guess, but I guess for example it could also
mention conference apperances and so on)
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02:27 < uriel> basically a News page where people can find out what is up
02:27 < uriel> (another item that might come up soon to post in such a page
is Go's participation in GSoC for example)
02:32 < uriel> adg: by the way, I have a couple of suggestions to perhaps
improve/unclutter the new front page a bit, got to sleep now, but if you are
interested we can talk about it some time, or I can play around with some changes
and you can tell me if you like them
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03:13 < holmescn> Some days before, the BFS is talked much.  What about
there days?
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04:00 < plexdev> http://is.gd/g2Fbk by [Russ Cox] in 4 subdirs of
go/src/cmd/ -- 5l, 6l, 8l: accumulate data image during import
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04:17 < gzmask_> where is the source code for "godoc" ?
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04:19 < gzmask_> nvm I found it
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06:04 < Gertm> when I compile go, I get an error message "illegal
instruction" when it tries to do math.Hypot (math.Hypot+0x2c
/home/gert/go/src/pkg/math/hypot_386.s:20).  What could cause that?
06:11 < uriel> Gertm: a bug in your code or in Go's code, sounds like a bug
in the math package, I'd fill it in the issue tracker
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06:17 < Gertm> I only get it on that one pc though
06:18 < Gertm> and it's not when compiling my code, it's when compiling the
go release
06:21 < uriel> what release?  have you tried tip?
06:21 < uriel> and what do you mean by 'pc'?
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06:24 < Gertm> ah, it's a cyrix processor
06:24 < Gertm> VIA Samuel 2
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06:24 < Gertm> I'll try the tip, but the release before this one had the
same problem
06:24 < Gertm> I think this cpu just doesn't support that one particular
instruction, could that be possible?
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08:05 < HollyRain> hi!  I need to store the value of a initial struct but
without loose its value at using a copy of it (where its value is changed)
08:05 < HollyRain> http://www.gopaste.net/?id=1586
08:06 < HollyRain> I know that Go works so, but I need to have the original
value
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08:09 < HollyRain> any help?  please
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08:15 < nsf> HollyRain: *newSettings = *firstSettings
08:15 < nsf> ?
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08:17 < HollyRain> nsf: in that program does works, but not in another one
08:17 < HollyRain> could be becase its field is a pointer?
08:17 < nsf> yes
08:17 < nsf> you need to copy that field to
08:18 < nsf> manually
08:18 < HollyRain> ahhh ok, thanks
08:18 < nsf> func copyMyStruct(to, from *MyStruct) { to.field1 =
from.field1; copyField2OfMyStruct(to.field2, from.field2); }
08:18 < nsf> etc.
08:19 < nsf> in terms of scripting languages it's called deep copy
08:22 < nsf> s/to/too/
08:22 < nsf> !
08:22 < nsf> :)
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08:27 < nsf> "If there are no errors, the function returns false."
08:28 < nsf> what's wrong with this people
08:28 < nsf> :\
08:28 < nsf> I thought it's a weird stuff of the C API, but it's in the C++
API as well
08:29 < nsf> although it makes my life easier, means that treating LLVMBool
as bool where 1 is true and 0 is false, makes sense
08:31 < ampleyfly> aha, so I was right about changing the interpretation
08:32 < nsf> i guess so
08:32 < ampleyfly> not that it makes it less odd :(
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08:33 < nsf> well, the thing is, that I'm converting their weird error
reporting style to Go's (which uses os.Error), so I have to dig all the sources
anyway
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08:36 < nsf> haha
08:36 < nsf> now I know the reason why it is that way
08:36 < nsf> verifyModule does this:
08:36 < nsf> return V->Broken;
08:37 < nsf> it should be called isModuleBroken or something
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08:39 < ampleyfly> ayup
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08:40 < nsf> now I'm thinking should I rename it or leave it as it is
08:40 < nsf> ah..  I just use os.Error as a return value instead of bool
08:40 < nsf> s/I/I'll/
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09:06 < pvm> i have files in different folders and 6g says '../test.go:41:
can't find import: gmp' - how can i tell 6g to search in '..' ?
09:06 < nsf> have you tried '6g -h'
09:06 < nsf> ?
09:07 < nsf> help is useful sometimes
09:07 < nsf> "-I DIR search for packages in DIR"
09:07 < nsf> in your case
09:07 < nsf> -I..
09:08 < pvm> ah, ok
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15:19 < anschelsc> If I want to turn an io.Reader into an io.ReadByter,
should I use bytes.Buffer or bufio.Reader or something else?
15:27 < wrtp> anschelsc: bufio.Reader is what you want
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16:59 < ficoos> hi, does a channel auto close when for i := range channel {}
exists on break?
17:00 < exch> nope
17:00 < exch> channels have to be closed explicitely
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17:02 < Tv> ficoos: that's also the receiving side of the channel, closing
is done by the sending side
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17:02 < ficoos> so I can't do `for item := somelist.Iter() {}` beacuse if I
break the channel stays open
17:03 < exch> You can break all you want.  The channel will just stay open
17:03 -!- skelterjohn [~jasmuth@lawn-gw.rutgers.edu] has joined #go-nuts
17:03 < exch> There's ais also no rule stating that the receiving and can't
close a channel, it's just the established protocol to let the sending end do that
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17:07 < plexdev> http://is.gd/g3rjv by [Russ Cox] in 2 subdirs of
go/src/cmd/ -- 6l, 8l: avoid recursion in asmandsz
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17:12 < ficoos> well, is a channel closed when there are no references to
it?
17:14 < Tv> ficoos: if there are no references to it, it won't matter ;)
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17:15 < Tv> sounds like you're stuck thinking about files that are fd's
except with garbage collected object wrappers around them -- channels aren't like
that
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17:16 < Tv> you have no "obligation" to close a channel
17:16 < Tv> it's just a common signal to the reading side that there will be
no more messages
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17:17 < ficoos> Tv: what about telling the writing side I won't be reading
anymore
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17:17 < Tv> ficoos: most people architect their programs to not do that
17:19 < ficoos> Tv: all the Iter() methods some types have will just stay
there forever if you stop reading before you reach the end.
17:19 < Tv> ficoos: exp/iterable was just recently removed from go as a
failed experiment
17:21 < skelterjohn> I don't know if they decided to do this or not, but a
suggestion i have is that if a goroutine is 1) blocked and 2) what it is blocked
on is not connected in some way to an active goroutine, that it should be killed
17:22 < ficoos> Tv: Two day ago, I'll go read the realease notes.  Thanks!
17:22 < skelterjohn> so, with the deprecated Iter() stuff, for instance, if
there is a goroutine that just pumps values onto a channel, and it's blocking
waiting for someone to read, but no one knows about that channel anymore, that it
should disappear and be cleaned up
17:23 < Tv> skelterjohn: that sounds like it might hide some bugs in an ugly
way
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17:23 < skelterjohn> it's guaranteed to never change the behavior of a
program
17:23 < skelterjohn> if done right
17:23 < Tv> skelterjohn: perhaps the send should error out somehow, and you
could handle that one specific error for a quiet shutdown
17:23 < skelterjohn> unnecessary
17:23 < skelterjohn> it will only improve the memory footprint
17:23 < skelterjohn> will not hide or introduce bugs
17:24 < Tv> well the bugs were there already
17:24 < skelterjohn> already that goroutine will be stale and never
reactivate
17:24 < Tv> it just makes them more subtle
17:24 < skelterjohn> no - it really doesn't!
17:24 < skelterjohn> unless you use the amount of memory being used as a bug
indicator
17:24 < skelterjohn> that's the one and only thing that would change
17:24 < Tv> well it's more..  if you start programming with the assumption
that that behavior is ok, you can't use it triggering as a sign of bugs in your
program
17:25 < skelterjohn> i don't follow
17:25 < skelterjohn> if you have a dangling goroutine
17:25 < Tv> what if you didn't intend for that to happen, and would like to
know it happens
17:25 < skelterjohn> there is no way to get that information back
17:25 < skelterjohn> you would never know that it happened if you didn't
intend it
17:25 < skelterjohn> it's just a goroutine in the runtime that never wakes
up
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17:27 < skelterjohn> cleaning up a dangling goroutine will have identical
behavior to not cleaning it up
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17:28 < soul9> can anyone here show me a doc about the ...  notation?
17:28 <+iant> for a function definition or a function call?
17:28 < Tv> skelterjohn: you are correct on that; however, i find debugging
deadlocks difficult enough, i'd like more help, not my mistakes being sweeped
under the rug
17:29 < soul9> aah found it in the spec
17:29 < soul9> i thought i had searched, but i guess not
17:29 < soul9> iant: don't know yet ;) lemme look at the docs and see if it
elucidates my questions
17:30 < skelterjohn> Tv: sure.  my point is only that my suggestion would
break no code, introduce no bugs, and make the memory footprint smaller in some
cases
17:30 < Tv> skelterjohn: and i'm arguing that right now, you could add the
same detection code, but make it trigger, thus letting me see my deadlocks as
early as possible; if people start relying on that cleanup feature, that will
never be possible again
17:30 < Tv> s/trigger/trigger a panic/
17:31 < skelterjohn> opinions vary
17:31 < skelterjohn> i think it's in line with how the rest of the garbage
collector works
17:31 < Tv> skelterjohn: i wouldn't object in the least if it was explicit
when that is wanted
17:32 < Tv> "i know i will unrecoverably block at some point, just let me
die then"
17:32 < Tv> or even
17:32 < Tv> "this receive/send might block infinitely, if so, kill me"
17:32 < Tv> sort of like the non-blocking send
17:32 < Tv> (/receive)
17:32 < skelterjohn> if that triggered a panic in the goroutine that could
be caught with a recover, that might be ok
17:33 < skelterjohn> i'm still in favor of silent cleanup, though
17:33 < skelterjohn> unless it's main that gets cleaned up
17:33 < skelterjohn> that's a panic right now, and should continue to be so
17:33 < Tv> i'm no language designer, but e.g.  something akin to go/defer:
closing a <- ch
17:33 < Tv> if that'd block forever, exit
17:36 < Tv> but yeah one way of doing it is would be a panic, and then
there's the two design decisions: make the specific "blocks infinitely" panic be
silently eaten by the gc mechanism, or make the code able to catch & handle that
specific panic for a clean shutdown
17:36 < skelterjohn> either way i got shot down when i suggested it to the
ML :)
17:36 < skelterjohn> i forget why
17:37 < skelterjohn> was like 6 months ago
17:37 < Tv> haha
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17:41 < skelterjohn> here it is:
http://groups.google.com/group/golang-nuts/browse_frm/thread/e8a494c088b9ece5/db68690f4669ca60
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17:42 < skelterjohn> oh, the reason was "we're busy" which is reasonable :)
17:43 < Tv> hah, i see my argumentation in that thread
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17:46 < skelterjohn> not exactly - RC suggested a panic if all the
goroutines block simultaneously
17:46 < skelterjohn> which is already the case
17:46 < soul9> iant: i was wondering wether i could call a function with X
parameters using an array(or slice) and ..
17:46 < soul9> er s,$,.,
17:49 -!- skelterjohn [~jasmuth@lawn-gw.rutgers.edu] has quit [Quit: skelterjohn]
17:49 <+iant> soul9: you can if the function uses ...  itself
17:50 < soul9> ah cool
17:50 <+iant> but if the function takes a fixed number of parameter you need
to write out s[0], s[1], etc.
17:50 < soul9> so calling a function that has ...in it's signature, i can
call with arrrayname...
17:50 < soul9> ?
17:50 <+iant> yes
17:50 < soul9> sweet!
17:50 < soul9> thanks
17:50 < soul9> that simplifies my program by at least 40 lines
17:50 < soul9> \☺/
18:01 < Vovchik> Go Windows IDE
18:01 < Vovchik> http://dl.dropbox.com/u/12236219/GOIDE/GoIDE2.html
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18:36 < MaksimBurnin> Vovchik: cool, but what about autocompletion?
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18:49 < Vovchik> hm
18:50 < Vovchik> i will try to implant something basic soon
18:50 < Vovchik> i just dont have time right nw
18:50 < Vovchik> now
18:50 < gmilleramilar> what toolkit is that done with?
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18:51 < gmilleramilar> Vovchik: what toolkit is that done with?
18:52 < Vovchik> AvalonDock and AvalonEdit
18:52 < Vovchik> WPF
18:53 < gmilleramilar> cool.  looks pretty slick
18:54 < skelterjohn> what'd i miss?
18:54 < skelterjohn> i like slick things
18:54 < gmilleramilar> Vovchik was just announcing a Go IDE for windows
http://dl.dropbox.com/u/12236219/GOIDE/GoIDE2.html
18:55 < Vovchik> :D
18:55 < skelterjohn> that's what i inferred - except the windows part (boo!)
18:55 < skelterjohn> i'd like something that would zoom me to lines with
compile errors, and lines that show up in stack traces
18:56 < skelterjohn> i wonder if it's possible to trick xcode to do this
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18:57 < Vovchik> i will soon add the source code to this (its pretty dirty
but works fine)
18:59 < cbeck> xcode should be able to, emacs does without problems
19:00 < skelterjohn> first i have to figure out how to tell xcode to compile
19:00 < skelterjohn> right now i just tab over to a terminal
19:02 < EthanG> the only straightforward way I found of compiling a whole
project in xcode was the compile-and-run button
19:02 < MaksimBurnin> The holly war has begun!  Anyway, good job Vovhik,
thanks for your editor, i'll test it at work on monday(can't run on Wine).
19:05 < EthanG> no, just saying what I found, lol.  I think there's a
keybinding / menu entry for just compiling, but I can't get at xcode now
19:06 < EthanG> you can right-click on individual source files to compile
them I think
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19:07 < MaksimBurnin> is there any xcode ports for linux/windows?
19:08 < skelterjohn> not likely
19:08 < skelterjohn> xcode is closed source
19:08 < MaksimBurnin> oh i see...
19:08 < Vovchik> np :D
19:11 < skelterjohn> Vovchik: does your ide use makefiles?  or does it
figure out how to compile on its own?
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19:14 < Vovchik> it uses gobuild to compile projects and libraries
19:14 < Vovchik> http://code.google.com/p/gobuild/
19:14 < Vovchik> i just edited it to work with windows
19:15 < Vovchik> it can figure out how to compile the project
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19:15 < Vovchik> i have added the source code and some little info about how
to manualy create projects
19:16 < MaksimBurnin> can you create a HG/GIT/SVN repo?
19:16 < skelterjohn> i think someone should do an ide based on exp/draw, in
pure go, so it can work wherever someone might want to write gocode
19:17 < MaksimBurnin> skelterjohn, agree.  it would be very good
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19:17 < Vovchik> i agree too :x
19:17 < Vovchik> MaksimBurnin: maybe later
19:18 < MaksimBurnin> someone suggested this yesterday here :-D
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19:18 < yebyen> i'm thrilled that gobuild is really usable now
19:18 < yebyen> i haven't tried it yet though :x
19:18 < yebyen> (embarassing)
19:19 < skelterjohn> is that evolving as some kind of standard?
19:20 < skelterjohn> copying the same makefile all over the place is
annoying
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19:23 < ShadowIce> Vovchik: what did you change in gobuild for Windows?
19:24 < skelterjohn> i don't see how to make gobuild install something it
just built
19:24 < Vovchik> cmd.Wait and args passing
19:25 < Gertm> how do I convert from string to []byte easily?
19:25 < MaksimBurnin> []byte("some") i think
19:25 < plexdev> http://is.gd/g3AUt by [Russ Cox] in 4 subdirs of
go/src/cmd/ -- 6l: function at a time code layout
19:26 < plexdev> http://is.gd/g3AUH by [Luuk van Dijk] in go/src/cmd/gc/ --
gc: keep track of real actual type of identifiers.
19:26 < Gertm> doh, ofcourse
19:26 < Gertm> of course* even
19:26 < Vovchik> i used OpenProcess and WaitForSingleObject to replace
cmd.Wait
19:26 < Vovchik> but i think cmd.Wait has been fixed for windows in the last
release
19:28 < MaksimBurnin> i wish i'll never see fork() in a go code :-D
19:31 < napsy> Hello.  can I create a bufio.Reader from *os.File?
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19:36 < TheMue> os.File implements io.Reader, so bufio.NewReader(myFile)
should work
19:37 < napsy> o
19:37 < napsy> ok
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19:42 < skelterjohn> KirkMcDonald: I filed an issue for optparse-go
19:42 < plexdev> http://is.gd/g3C5U by [Russ Cox] in 2 subdirs of
go/src/cmd/ -- 8l: blind attempt to fix windows build
19:43 < napsy> http://gist.github.com/628817 ...  this code runs /bin/ls but
it blocks when I try to read from stdout pipe.  What am I doing wrong?
19:47 < unRuhe> Why does fmt.Scanln("%s",input) not work.  The program just
finished without wanting input
19:48 < skelterjohn> unRuhe: perhaps some more context would be in order
19:48 < unRuhe> i want to type in values
19:48 < skelterjohn> as in, show me some code :)
19:48 < unRuhe> sec
19:51 < unRuhe> http://pastebin.com/79QNbMXh
19:52 < unRuhe> i want to type in a value with the console
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19:54 < skelterjohn> use fmt.Scanf
19:54 < skelterjohn> and &input instead of input
19:54 < skelterjohn> http://pastebin.com/pgZ0k2Kq
19:55 < MaksimBurnin> or fmt.Scanln(&input)
19:55 < skelterjohn> also,fmt.Sca
19:55 < skelterjohn> yeah what he said
19:55 < skelterjohn> you have to pass the address of the string
19:55 < skelterjohn> otherwise the information can't get back to you
19:56 < skelterjohn> fmt.Scanln takes no format argument (the "%s")
19:56 < unRuhe> ty u very very much
19:57 < unRuhe> i got it, that & is just like in C actually should have
tried that one myself :D
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19:58 < unRuhe> but shouldn scanln give me an "too much arguments on func
scanln" error?
19:58 < skelterjohn> scanln takes as many arguments as you want to give it
19:58 < unRuhe> oh ure right there were the dots :D
19:59 < unRuhe> okay thx you made all clear to me, I appreciate
20:00 < skelterjohn> our pleasure
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20:14 < plexdev> http://is.gd/g3EgA by [Rob Pike] in go/src/pkg/log/ -- log:
roll back the rollback of the deprecation of the old interface.
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20:31 < raylu> so i have two lines: "fmt.Println(s)" and "go
fmt.Println(s)", but i only see one print to stdout.  what am i missing?
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20:32 < skelterjohn> saying "go foo()" makes no promises about when foo will
execute
20:32 < skelterjohn> and if it doesn't execute before main returns, it will
never execute
20:33 < raylu> oh.  then how do i guarantee that it executes?
20:33 < skelterjohn> synchronization constructs
20:33 < skelterjohn> channels, etc
20:33 < skelterjohn> if you want to have main wait for a goroutine to finish
before it returns, have that goroutine shoot a value on a channel and have main
try to read it
20:33 < Tv> raylu: usual is done := make(chan bool, 1); func foo () { ...;
done <- true }; go foo(); <- done
20:34 < raylu> and if i'm firing off a few (like 3 or so) goroutines in a
loop, i'd have to create an array or somesuch of channels?
20:34 < Tv> or just three variables
20:35 < raylu> or perhaps have one channel that they all read to and have
main read from it 3 times?
20:35 < Tv> sure
20:35 < Tv> a bit harder to figure out who failed to exit, but often done
20:35 < skelterjohn> lots of ways to do it
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20:37 < raylu> wait, the problem is that if main exits, the goroutines also
exit, right?  what if i want the goroutines to run indefinitely?
20:38 < raylu> also, what is the 1 in make(chan bool, 1) for?
20:38 < skelterjohn> the only way they can do that is if you have main run
indefinitely
20:38 < skelterjohn> the 1 is the size of the channel's buffer
20:38 < skelterjohn> you don't really need to do that, but it allows your
goroutine to exit immediately, instead of waiting for main to read the channel
20:39 < raylu> oh.  so how do i make main run indefinitely?
20:39 <+iant> for {}
20:39 < raylu> that won't eat up cpu cycles?
20:40 <+iant> <- make(chan int)
20:40 < raylu> throw: all goroutines are asleep - deadlock!
20:41 < skelterjohn> of course they are
20:41 < skelterjohn> you have a program that is supposed to run
indefinitely, doing nothing
20:41 <+iant> time.Sleep(1e12)
20:42 < raylu> is there a non-hacky way to do this, perhaps?
20:42 < skelterjohn> the <- make(chan int) at the end of main() is
probably the best way to do it
20:42 < skelterjohn> but the thing you're trying to do is bad
20:42 < skelterjohn> so it's a bit of a trick question
20:43 < raylu> oh.  it seems so.  making the goroutine actually connect and
wait seems to have fixed it
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22:22 < raylu> so i sort of understand the difference between len(array) and
cap(array), but when does len(array) get changed?  can it ever go down?
22:22 < cbeck> Careful, I have a feeling tht you mean slice, rather than
array
22:23 < raylu> oh, you're right, i do
22:24 < cbeck> And while the length of a given slice will never change, you
might reslice it and get another slice referring to the same array, but with a
different length
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22:25 < soul9> it's subtle..
22:26 < nsf> it's not
22:26 < raylu> oh.  is the following "reslicing?"
22:26 < raylu> e = e[0 : len(e)+1]
22:26 < nsf> people are just plain lazy in learning new things, even if
those things are _very_ simple
22:26 < nsf> raylu: yes
22:27 < raylu> ok.  this code makes a lot more sense now
22:27 < nsf> 0 can be omitted btw
22:27 < nsf> e = e[:len(e)+1]
22:27 < KirkMcDonald> I thought it was only the right side which could be
omitted.
22:27 < raylu> i'd change it, but the original coder is explicit about 0s
elsewhere too (i assume)
22:28 < soul9> so cap is the length of the underlying array?
22:28 < nsf> KirkMcDonald: there was a change in the language few releases
ago
22:28 < KirkMcDonald> soul9: Yes.  Or at least, the distance between the
start of the slice and the end of the array.
22:28 < nsf> that allows omitting lhs too
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22:28 < KirkMcDonald> soul9: The slice does not have to begin at the start
of the array.
22:28 < soul9> yes
22:28 < soul9> so how do you figure out the start of the array?  :)
22:28 < nsf> soul9: you can't
22:29 < raylu> presumably, you had it at some time in order to get a slice
that's not the start
22:29 < soul9> ok.
22:29 < soul9> yes.  i see.
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22:31 < nsf> uhm..  is there any tools for creating documentation for Go?
22:31 < nsf> except godoc
22:31 < nsf> s/is/are/
22:32 < Tv> nsf: maybe you should start by stating why godoc is a bad
choice?
22:32 < nsf> it looks like a daemon and it's not well suited for generating
static (e.g.  html) documentation
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22:33 < nsf> I'm looking something more like a doxygen
22:33 < Tv> nsf: oh, that's weird
22:33 < nsf> grr..  s/looking/looking for/
22:35 < raylu> the -html option of godoc seems to mention a "command-line
mode"
22:35 < Tv> nsf: as a pythonista, i'm fairly happy with sphinx.pocoo.org for
general technical writing
22:35 < Tv> but it has no clue of go specifics (at this point, at least)
22:35 < nsf> raylu: have tried generating docs using godoc?
22:35 < raylu> no
22:35 < nsf> why people suggesting something without even knowing how it
works
22:35 < nsf> :)
22:36 < nsf> Tv: thanks for the link
22:36 < nsf> I'll check it out
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22:36 < Tv> nsf: because it obviously worked for someone else
22:36 < Tv> namely, golang.org
22:36 < nsf> I haven't seen any 3rd party project that uses godoc
22:37 < nsf> golang.org uses godoc because they've created it
22:37 < nsf> for their needs
22:37 < nsf> and they don't present it as a "general purpose documentation
generator for go"
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22:43 < nsf> hm..  nice, Go lib has this thing: "go/doc"
22:44 < nsf> I think I'll roll my own simple documentation system :)
22:49 < Tv> nsf: sounds like if you feed a go.ast.File.MergePackageFiles()
result to it, all you need to really provide is the navigation
22:49 < nsf> Tv: go/parser has this thing: ParseDir
22:49 < Tv> ah, even easier
22:50 < nsf> yeah, a bit of html/js sugar and grouping stuff
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23:07 < thebarberian> is anyone here using go on fbsd 8.1 amd64?
23:10 * kimelto is
23:11 < kimelto> thebarberian: why?
23:11 < thebarberian> well I have a few questions
23:11 < thebarberian> I am just starting with go
23:11 < raylu> i'm having a bit of trouble with the xml parser and
namespaces
23:12 < thebarberian> kimelto: I am trying two things 1) to build one of the
public packages 2) build my own
23:12 < thebarberian> did you install it from the ports?
23:13 < kimelto> yup, but it is very outdated.
23:13 < thebarberian> when I install it from the ports what am I supposed to
do with the GOROOT dir?
23:14 < kimelto> export GOROOT="/usr/local/lib/go"
23:14 < kimelto> in your ${SHELL}rc
23:14 < kimelto> dont forget GOOS and GOARCH
23:15 < thebarberian> perfect I see it
23:21 < raylu> just kidding; xml.Unmarshal works without specifying
namespaces
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23:23 < thebarberian> kimelto: I only see the packages there
23:23 < thebarberian> kimelto: I mean in the recommended Makefile everyone
talks about $(GOROOT)/src/Make.$(GOARCH)
23:24 < thebarberian> I noticed that there are some make files in
/usr/local/share/go
23:24 < kimelto> thebarberian: that's right, src is not installed
23:24 < kimelto> thebarberian: exactly, but hey wont work
23:25 < kimelto> as they want to include other makefiles from GOROO/src/
23:25 < thebarberian> I noticed and then I get "/src/blah...  doesn't work"
23:25 < kimelto> but I dont mind as I dont want to use gmake :)
23:26 < thebarberian> :) so it's fine to have a normal make
23:26 < kimelto> sure
23:26 < thebarberian> I mean I had that originally but what about goinstall?
23:27 < kimelto> I dont know, I dont use it.
23:28 < thebarberian> ok fair enough
23:28 < kimelto> pypi, rubygem, ...  not for me ;p
23:28 < thebarberian> :)
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23:28 < thebarberian> well it's good to know that these tutorials that show
how to use gomake don't work and it's not me going crazy
23:28 < thebarberian> thanks :)
23:29 < kimelto> you're welcome
23:29 < kimelto> it'll be easier if the src stuff is installed in GOROOT
23:29 < kimelto> but I guess it is not hier(7) compliant
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23:43 < raylu> python has a divmod that returns the quotient and remainder:
http://docs.python.org/library/functions.html#divmod is there something similar in
go?
23:45 < KirkMcDonald> func divmod(a, b int) (div, mod int) { return a / b, a
% b }
23:45 < KirkMcDonald> Sure, it doesn't do the optimization which Python's
divmod does.  But whatever.
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23:50 < raylu> heh.  ok
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--- Log closed Sat Oct 16 00:00:05 2010