<< 19-06-2015 >>
00:00:19reactormonkyou could iterate over it? Usecase?
00:04:49migloI'm just playing a bit around with recursion and have created a proc that sums up the values of a sequence
00:05:43miglodon't know whether I've created now the best possible solution
00:06:12migloI'm learning nim right now :-)
00:06:54reactormonkcode plz
00:08:07migloI was wondering whether some scala examples could be implemented in nim as elegant and concise as in scala
00:09:18reactormonkNim and scala require different ways of laying out your code
00:09:41reactormonkI claim some knowledge in that topic with my scala expertise :-)
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00:11:45miglohere you can find my today's first nim experiment: http://pastebin.com/jruVva6X
00:12:14reactormonkProbably inefficient as fuck ^^
00:12:58reactormonkHm, might be picked up by tail call optimization, but not sure. tailcall isn't as important in nim so there is no @tailrec
00:13:05miglo:-)
00:14:26reactormonkFrom FP, you might like the concepts, although they aren't used in the stdlib (yet)
00:14:58reactormonkAraq, anything else for https://github.com/nim-lang/Nim/pull/2930 ?
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00:15:40vbtt_tail call optimization should require explicit invocation
00:16:06reactormonkmiglo, I assume you know idiomatic nim code would look differently?
00:17:10reactormonkmiglo, e.g. import sequtils; foldl(integers, a + b)
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00:23:09miglointeresting, thanks for pointing this out. My goal for today was not to write the highest efficient accumulation algo, just to write my first lines of nim code after reading the last days the tutorial.
00:23:50reactormonkIn nim, it's just enough FP if needed, otherwise procedural. Just use a rather hands-on approach.
00:23:56miglofrom the mistakes I made and compiler complains I've already learned a lot
00:24:35miglook, that's it for today. thanks and bye
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07:14:39irezvovhi there
07:15:00irezvovi have got a trouble with c2nim installation
07:15:50irezvovi have 0.11.2 version installed, but nimble tries to find devel version
07:16:02irezvovof nim compiler
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07:16:51irezvovthen he tries fetch and install new nim version, and then it says Unsatisfied dependency: nim (>= 0.11.3)
07:17:04irezvovlooks odd :)
07:18:11irezvovCan somebody show me direction of research?
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08:14:56kashyap_Hi there ... what's a good way to convert a seq[char] to string?
08:20:24kashyap_join(collect.mapIt(string, $(it)))?
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08:49:35r-kuactually my question is similar. i wonder if we can get open_array[T] from seq[T]? i want byte array of seq[int8]. i suppose same method could be applied to converting char seq to string while keeping performance up.
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09:04:53Araqirezvov: hrm that's weird
09:05:41Araqkashyap_: not sure, I don't use seq[char] to begin with ;-) I use 'string' which is compatible with 'string'.
09:06:47kashyap_I am trying to parse a line using for i in str: ... where I get each char at a time and I am putting it into the seq as needed .. at the end of it I need to collapse the seq into a string
09:07:13kashyap_actually I am trying to parse CSV and just remembered that there is a module already :)
09:07:30irezvovAraq: i have already decided to implement required lib(memcache client) in nim natively :)
09:07:59irezvovso it is not critical for me now
09:08:13Araqirezvov: woohoo :-)
09:08:26Araqkashyap_: no no no no, lot's of mistakes right here
09:08:27kashyap_but out of curiosity ... how can I approach the problem of going through the characters and collecting them as per some logic
09:08:31Araq:-)
09:08:54Araqfirst of all 'for i in str' doesn't work for anything remotely complex
09:09:29Araqfor example, you split after ';' (ha, for loops works!) but you can escape it like so \; ... ooops
09:09:45kashyap_ah .... okay ... I use the csv module for now and look at its implementation later :)
09:09:59Araqso you need to do i += 2 for handling '\'
09:10:03Araqsecondly
09:10:32Araqfor parsing based on str[i] indexing (and there really is no better way)
09:10:46Araqwe have nice helpers in parseutils.nim
09:10:52Araqthirdly
09:11:30Araqyou don't collect stuff in a seq only to use join to convert it to a string, Nim is not Python, strings are not "immutable"
09:11:42Araqyou just append to the string via 'add'
09:12:30kashyap_won't number of add's result in n^2 for string?
09:12:41Araqno they won't
09:12:58kashyap_cool!
09:13:00Araqstring's 'add' is really like seq's 'add'
09:13:08kashyap_I see!
09:13:10kashyap_got it
09:14:22Araqand yes, the CSV parser should be a good example of how to do parsing in Nim
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11:08:23JinShilIn the mangled name "_D6Object7__ClassZ" does anyone know what the 6 and 7 signify?
11:14:46JinShilI see. It's the length of the symbol name.
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13:26:48ozraAraq: What are traversalProc generators? Faster GC checkers for generated procs?
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14:02:47Araqozra: type specialization for the GC
14:03:00Araqmarker procs are specialized for speed
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14:16:43ozraAraq: Alright. I'm diving deeper and deeper into the chain, wasn't the easiest bug to solve cleanly ;-) Must have the functionality so might as well try to grasp the whole process.
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14:17:09ozraWell, no it's time for mid summer drinking blackout, barbeque and silly dances. Cheers everyone!
14:17:19Araqer ... ok ...
14:17:36Araqcan you make the PR before you die?
14:18:06ozraDepends on what happens tonight! Hopefully ;-)
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14:18:58irezvovwhat is the best way reintepret pure object as string(with manual setted length)?
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14:19:04Araqaren't you too old to get drunk? :P
14:19:35Araqirezvov: you really can only interpret as 'cstring'
14:19:50Araqcast[cstring](addr obj)
14:20:14irezvovbut then i want concat it with another string and send by socket
14:20:16ozraAraq: Fortunately that's an ability you can keep up till your dying day, haha
14:21:40Araqirezvov: $ the cstring then, but you cannot cast to 'string' directly, the Gc will hate you
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14:23:49irezvovAraq: so better way to work with such data is cast it to pointer and use low-level socket api?
14:23:59Araqindeed
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20:40:04reactormonkdom96, neat, now we have "guideliens for contributing" in https://github.com/nim-lang/Nim/issues/new
20:40:47dom96cool!
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