golang-nuts@googlegroups.com discussions for December 2012

190	[go-nuts] 2 suggestions for go-lang grammar

1. Remove the trailing 'return' if return values are named. e.g. func foo() (res int) { res = 10 } 2. Supporting of ternary operators: ? : mn := a < b ? a : b David --

David DENG
Dec 4, 2012 at 9:57 am
Dec 9, 2012 at 8:24 am

84	[go-nuts] Thoughts on Go's lack of template programming

When it comes to Go's answer to C++'s template programming, I often see the type interface{} provided as a remedy: For example: For example, this: func add(a, b interface{}) (c interface{}, err ...

Sindre Devik
Dec 18, 2012 at 9:59 pm
Jan 2, 2013 at 8:26 pm

69	[go-nuts] [ANN] gonuts.io - centralized repository for versioned Go packages

Good news everyone! I'm happy to announce a preview of http://gonuts.io/ – centralized repository for versioned Go packages. Why do I think Go ecosystem need this? There are two problem "go get" ...

Alexey Palazhchenko
Dec 9, 2012 at 9:23 am
Apr 11, 2013 at 12:31 pm

47	[go-nuts] curiosity re spec prohibition on pointer-type receivers

What is the design reason behind prohibiting pointer-type receivers? --

Dan Kortschak
Dec 15, 2012 at 7:37 am
Dec 17, 2012 at 10:02 am

41	[go-nuts] Understanding goroutine & thread interaction

I'm working on a tool that runs 1,000s of regexp replace instructions across ~200,000 files (adding up to ~4gb atm). Currently this is written as a shell script using git grep + perl + xargs + ...

Naitik Shah
Dec 1, 2012 at 7:13 am
Dec 7, 2012 at 7:43 am

39	[go-nuts] How build an easy kernel in Go ?

Hi, I want to build a easy simple kernel in Go1. I use Qemu and Grub2 and my kernel is x86-64. My first problem, there is no `__attribute__((section (".grub_sig")))` for gccgo so I can't fill the ...

Guillaume Lescure
Dec 20, 2012 at 4:28 pm
Jan 17, 2013 at 11:14 pm

39	[go-nuts] On default GOPATH behavior

I've seen this discussion a few times and it keeps biting new users (or at least me when they come asking me for help). Does anyone have any strong opinions on changing the default GOPATH behavior to ...

Dustin Sallings
Dec 13, 2012 at 8:09 pm
Dec 16, 2012 at 2:13 am

35	[go-nuts] Go and Statistics

is Go suitable for the application of statistics and analysis of big data? is meet the challenges of big data http://blogs.worldbank.org/opendata/node/556 --

Likelihood
Dec 20, 2012 at 12:08 am
Jan 27, 2013 at 10:16 am

33	[go-nuts] Scope of short var declaration in if statement

In Go's specification, it is stated that the expression in Go's if statement[1] can be preceded by a simple statement, which includes a short var declaration. The following example (adapted) is ...

Rui Maciel
Dec 10, 2012 at 12:23 pm
Dec 25, 2013 at 5:50 am

33	[go-nuts] Is it possible to unmarshal JSON/XML to enum type?

Hi, Using the emoding/json or encoding/xml packages, is it possible to unmarshal JSON/XML into enums? For example, I have an XML field which should have only two possible values and I can define ...

Robert D.
Dec 27, 2012 at 12:54 pm
Jan 2, 2013 at 6:30 pm

31	[go-nuts] Proposal for implementation: format modifier for %v to print nested structs

Rationale: During debugging, printing nested structs with fmt.Printf("%+v", data) would come handy. --

Johann Höchtl
Dec 9, 2012 at 3:43 pm
Jan 19, 2013 at 8:13 pm

31	[go-nuts] go call syntax

I'm just starting to use go and very positively impressed. I've however surprised about following idiom: go func() { callSomeFunc() } () I wonder why this could not be 'sugarized' to: go { ...

Vadiml1024
Dec 21, 2012 at 7:25 pm
Dec 22, 2012 at 9:54 pm

29	[go-nuts] Code generation to replace generics?

So, I saw yet another post about generics in Go, and I had the same thought I'd had before... could we simply use code generation to replace generics? Most template / generic code is simply there to ...

Nate Finch
Dec 31, 2012 at 10:07 pm
Jan 2, 2013 at 1:21 pm

27	[go-nuts] [ANN] user_agent: an HTTP User-Agent parser.

Hi there! I've created a User-Agent string parser. Check it out here: https://github.com/mssola/user_agent . It's the first project I've done in Go. Hope you guys like it :) Greetings, Miquel --

Miquel Sabaté Solà
Dec 19, 2012 at 2:18 pm
Dec 20, 2012 at 6:53 pm

25	[go-nuts] Impossible to override Content-Type header?

I have a func that should set the Content-Type header if it does not already exist. It seems like the Header implementation <http://golang.org/src/pkg/net/http/header.go?s=298:329#L6 does this ...

Christian
Dec 13, 2012 at 9:28 pm
Dec 16, 2012 at 5:09 pm

25	[go-nuts] [ANN] Go spec - German translation

This took me quite a while. But some hours now and then were allways a welcome change from mind crippling Cobol-coding . Here is it: http://www.bitloeffel.de/DOC/golang/go_spec_de.html To me, the ...

HaWe
Dec 9, 2012 at 8:23 pm
Dec 11, 2012 at 8:09 pm

24	[go-nuts] Alternate CSPRNG implementations

Hello, I'm curious about the design of crypto/rand. The current implementation relies on the system's CSPRNG (/dev/urandom or CryptGenRandom). Is there a reason why these sources of random bytes are ...

Maxim Khitrov
Dec 2, 2012 at 4:25 pm
Jul 26, 2013 at 12:15 pm

24	[go-nuts] The subtleties of := and a bug in gomemcache

I sent a pull request to bradgitz for the gomemcache package today (https://github.com/bradfitz/gomemcache/pull/5). The short version is that something like this was in the code: func foo() error { ...

John Graham-Cumming
Dec 19, 2012 at 5:08 pm
Dec 20, 2012 at 4:19 pm

24	Re: [go-nuts] Clearing a map with multiple references, why doesn't this work

Creating a new map is easy. But if you can't do that for some reason, then it is correct that the only way to clear all the entries out of the map is to range over the map and call delete. We could, ...

Ian Lance Taylor
Dec 11, 2012 at 6:48 pm
Dec 12, 2012 at 3:34 pm

24	[go-nuts] Disallow shadowing

Hi gonuts, Just before I dig into the compiler, does anyone have a patch which disallows all variable shadowing for the amd64 gc or know what lines would need to be looked at? Thanks, Simon Watt --

Si guy
Dec 10, 2012 at 3:27 pm
Dec 11, 2012 at 12:28 pm

23	[go-nuts] Time

http://play.golang.org/p/3fv0L3-z0s This will make its way to golang.org, tour.golang.org, and talks.golang.orgin due course. Andrew --

Andrew Gerrand
Dec 12, 2012 at 11:47 pm
Dec 13, 2012 at 7:34 pm

21	[go-nuts] Backing up multi GB structures from memory to disk

We've got an in memory data store comprised of several large maps (up to ~50 million "unit32 pointer") and various linking data structs which totals up to ~10GB. This data also has a fairly high read ...

Hamish Ogilvy
Dec 18, 2012 at 3:38 am
Dec 20, 2012 at 11:05 pm

20	[go-nuts] simpletype: simple types like List and Dict for Go

Hello, I'm creating my first package that bring list and dict to Go with methods you can found in Python. Because it's my first package in Go I would like to ask if someone can check my code and tell ...

Dobrosław Żybort
Dec 21, 2012 at 4:07 pm
Jan 9, 2013 at 5:38 pm

20	[go-nuts] Multidimensional arrays in Go, how to ravel?

Hi All, Does Go have multidimensional arrays/slices at all, or these are just lists of lists? I mean, lf I have a slice a[][]float64, pointing to an underlying array a0[3][4]float64, will it be a ...

Ali Ali
Dec 18, 2012 at 5:35 pm
Dec 19, 2012 at 12:08 am

19	[go-nuts] Weekend Challenge: Fast summing of uint8 slices

Hi, I'm writing some code for a text search engine which has an implementation of sparsetable and I found a bottleneck when summing large numbers of uint8 slices. I love how easy it is in Go to ...

Donovan Hide
Dec 15, 2012 at 5:28 pm
Dec 18, 2012 at 6:23 pm

19	[go-nuts] Pointer to inner structs

Can someone enlighten me, why is it that the larger inner structs get different pointers and the smaller ones get the same? http://play.golang.org/p/wKL4JocwAv Is there any rule? I want to be able to ...

Meta keule
Dec 13, 2012 at 3:03 pm
Dec 13, 2012 at 8:23 pm

19	[go-nuts] Iterators with recursive algorithms

Hi all -- a couple of Gophers have independently hit upon an elegant pattern for iterators in Go. Say you define a FooList type, which might be type FooList []Foo or type FooList struct { list []Foo ...

Greg Ward
Dec 6, 2012 at 5:36 pm
Dec 8, 2012 at 3:32 am

18	[go-nuts] [ANN] webbrowser: open webpages on your default browser.

Hi there gophers, I made this a couple of weeks ago because I need something like Python's webbrowser <http://docs.python.org/3.3/library/webbrowser.html and I forgot to publish it here. It's very ...

Carlos Cobo
Dec 16, 2012 at 2:38 am
Jan 15, 2013 at 8:26 am

18	[go-nuts] Question about scoped types and methods

Hi, Take a look at the following example: http://play.golang.org/p/f7gn2EQSZo Why is it legal to attach methods to the global Test type but not to the block-scoped one? Cheers! --

Tomwilde
Dec 6, 2012 at 11:14 am
Dec 6, 2012 at 1:57 pm

17	[go-nuts] Goroutine

Hello, I don't have full understanding of goroutines and deadlocks possible, but modelled this simple server to process some requests. (based on some code written by Kyle Lemons) So, I have a Service ...

Bsr
Dec 13, 2012 at 6:12 pm
Mar 20, 2013 at 1:08 pm

17	[go-nuts] One of those "gc-under-the-hood" questions: are getters inlined?

Since I can't read C code... just wondered about whether "pure getters" are inlined: type MyRec struct { foo string } func (me *MyRec) Foo () string { return me.foo } If another package imports this ...

Philipp Schumann
Dec 22, 2012 at 11:40 am
Jan 23, 2013 at 4:08 am

17	[go-nuts] OUYA

OUYA, the open Android based game console developer version just shipped. Anyone interested in porting/developing in Go? --

Anssi Porttikivi
Dec 28, 2012 at 9:54 am
Dec 30, 2012 at 8:50 pm

16	[go-nuts] goauth2 facebook no code returned

I'm trying to do server-side auth with facebook, i can get to login dialog and permission, but after redirect i didn't get the auth 'code' in redirect handler. any suggestion? FBCfg = &oauth.Config { ...

Kar
Dec 20, 2012 at 3:17 am
Jan 6, 2013 at 10:47 am

16	[go-nuts] How can a method get receiver's embedded attribute?

Hi, all. I want to get receiver's embedded attribute in a method, for example: package main import ( "fmt" ) type MyInt int func (i *MyInt)PrintEmbeddedAttr() { fmt.Println(EmbeddedAttr) } type Point ...

I90091e
Dec 18, 2012 at 12:05 pm
Dec 21, 2012 at 2:35 pm

16	[go-nuts] text/template functions - cannot use unexported functions

It intuitively makes sense why you would not want to do this (though I'd like to), but I can't figure out exactly why it works (I'm probably misunderstanding reflection rules). In text template an ...

Dan Kortschak
Dec 13, 2012 at 1:46 am
Dec 13, 2012 at 7:44 pm

15	[go-nuts] Recursive testing with 'go test'

Hi all, Here is shell script I use to test everything in source code directory. #!/bin/sh find . -name '*_test.go' | while read file; do n=$(dirname -- "$file") echo "$n" done | sort -u | while read ...

Boris Solovyov
Dec 28, 2012 at 5:56 pm
Aug 29, 2013 at 9:06 am

15	[go-nuts] java has channels to - SynchronousQueue.

According to: http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/SynchronousQueue.html#put%28E%29: * "Synchronous queues are similar to rendezvous channels used in CSP and Ada. They are ...

Michal
Dec 11, 2012 at 11:23 am
Aug 28, 2013 at 12:26 pm

15	[go-nuts] Wanted: Numerical methods package (Splines, Interpolation, Smoothing)

I am looking for a package that provides functions for splines, smoothing and/or interpolation (not for images, but for raw data). Couldn't find anything on the packages or dashboard page. I am ...

Ondekoza
Dec 29, 2012 at 9:26 pm
Jun 3, 2013 at 7:12 pm

15	[go-nuts] How to stop goroutines effectively

Hello, I am working on a calculation that is divided into three worker goroutines and I am handing data to each other using buffered channels. Very similar to pipe among three UNIX commands: worker1 ...

Lukáš Zapletal
Dec 30, 2012 at 7:22 pm
Jan 2, 2013 at 3:06 am

15	[go-nuts] What's idiomatic way to initialize struct with map?

Hi awesome list members, Following code will break because map is nil. ( http://play.golang.org/p/qqZMrG95x7): package main import "fmt" type EuclideanPoint struct { X, Y int } type PointsOfInterest ...

Boris Solovyov
Dec 22, 2012 at 6:15 pm
Dec 25, 2012 at 7:07 pm

15	Re: [go-nuts] liteidex15 released, support markdown!

Thank you for all your efforts. Best regards W dniu wtorek, 18 grudnia 2012 07:25:17 UTC+1 użytkownik visualfc napisał: --

Dobrosław Żybort
Dec 18, 2012 at 9:09 am
Dec 21, 2012 at 8:32 pm

15	[go-nuts] Calling new code

Is there a way in Go to compile additional Go code and then include it? I'm developing a modular mini-game engine, and I'm looking to have the flexibility of custom Go code within a game file. --

Thomas Horton2
Dec 14, 2012 at 12:13 am
Dec 18, 2012 at 3:42 pm

15	[go-nuts] noeq: Generator per table

Do you think that would be right to use a generator (noeqd) for each different table where it's needed a GUID or is it too overkill? I question it because every generator would get a sequential ...

Archos
Dec 2, 2012 at 1:03 pm
Dec 11, 2012 at 9:52 pm

14	[go-nuts] Strange Error when Using html template

Hey guys, first post here (so yay) anyways: Im trying to build an html template that will print meta, script and style tags based on a map of tags/scripts/files to include. Heres what Ive got so ...

SGen
Dec 10, 2012 at 10:21 am
Dec 19, 2012 at 10:47 pm

13	[go-nuts] Using structs, pointers, and maps

Hi list, If I make a map of structs, which have methods with side effects, it looks like I must store pointers to the structs in the map, not store the structs themselves. Because you can't take ...

Boris Solovyov
Dec 27, 2012 at 8:48 pm
Jan 12, 2013 at 11:03 pm

13	[go-nuts] generate keys

Hello, It is rather a general question. I want to generate unique serial identifiers / keys (alpha numeric string, preferably 10 -12 char long). I saw some discussion about UUIDs and rsc has a simple ...

Bsr
Dec 31, 2012 at 3:48 pm
Jan 2, 2013 at 10:29 pm

13	[go-nuts] net.Conn read slow ?

Hi, I am using net.Listen("tcp", addr) for a small server program which is to accept data and STORE it on the server. On the client side, I have a c++ program and I have simply written 4096000 BYTES ...

Raheelgup
Dec 30, 2012 at 8:46 am
Dec 30, 2012 at 10:21 am

13	[go-nuts] minor annoyance: main doesn't return a status to os

I find myself rather often write func main() { os.Exit(mymain()) } because main doesn't return a status to the os. And calling os.Exit(status) in main is not a good idea as deferred functions wont ...

Johann Höchtl
Dec 20, 2012 at 4:04 pm
Dec 22, 2012 at 1:12 pm

13	[go-nuts] Some memory leak and efficiency problem in the SliceTricks on community wiki

The SliceTricks page ( http://code.google.com/p/go-wiki/wiki/SliceTricks ) shows some one-line tricks for using a slice as a vector. But I think there are some hidden memory-leaks or efficiency ...

David DENG
Dec 19, 2012 at 4:10 am
Dec 21, 2012 at 12:46 am

13	[go-nuts] "clean" text/template block formatting

To build good line-oriented aligned output with text/template, as far as I can tell, I must do something like ('score' is a func): ---------------------------- {{.Activity}} Scorecard for ...

Kevin Gillette
Dec 11, 2012 at 10:14 pm
Dec 12, 2012 at 12:41 pm

group	golang-nuts @
categories	go
discussions	315
posts	2,603
users	404
website	golang.org

summaries	on	Hotkey: s
users list	on	Hotkey: d
user style	avatars	Hotkey: a

Go > golang-nuts > December 2012

Search Discussions

315 discussions - 2,603 posts

404 users for December 2012

Content

People

Support

Translate