Re: [go-nuts] Re: A proposal for generic in go

On Tue, Jun 21, 2016, at 03:17 PM, andrew.mez...@gmail.com wrote: > >>increase in cognitive load to decipher chains of type definitions. > > Sorry, but who are members of this mail lists? > This is a first time when I hear about such loads such as the > `cognitive load`. > Also I am possible

Re: [go-nuts] Re: A proposal for generic in go

On Tue, Jun 21, 2016, at 01:45 PM, andrew.mez...@gmail.com wrote: > >>I am not saying that generics is bad, but I am questioning whether > >>generics is necessary. > > Please, do not panic. > If you worry about the following things: > - Generated code will grow when used generics > - Generated

Re: [go-nuts] What dependency management tool do you use?

On Tue, Jul 12, 2016, at 09:23 PM, Henrik Johansson wrote: > I use gb. I like it a lot and I have had no issues. A quick question: how well do tools like go pprof work when your source code is managed by gb, outside of the GOPATH? -- Ian   -- You received this message because you are

Re: [go-nuts] Understanding HTTP server latencies

On Mon, Jul 18, 2016, at 03:13 PM, Rayland wrote: > Any thoughts on how to attack this problem? You could run the tiny example that Peter Waller wrote with the same test and share the results here. If we see the same slowdown pattern then it would eliminate a problem in your code. -- Ian --

Re: [go-nuts] Vendored trace package causes panic because of implicit handlers

On Wed, Jul 6, 2016, at 12:34 PM, Jakob Borg wrote: > 2016-07-06 9:11 GMT+02:00 Peter Bourgon : > > You can't actually make this distinction. > > There should be a single vendor/ dir at the root of the repo. > > See https://github.com/zellyn/wtf2 for a demonstration. > > (And

Re: [go-nuts] log.Logger, Why is this not an interface?

On Fri, Jul 8, 2016, at 05:29 AM, zgersh...@pivotal.io wrote: > Hey All, > > Originally asked on twitter but a more long-form medium is required to > answer this question. I've recently been working on adding logging to > a library and have been replacing what was once a custom logging > interface

Re: [go-nuts] Re: Singleton pattern for a client handle

On Thu, Jun 30, 2016, at 01:10 PM, awickert wrote: > > > Am Donnerstag, 30. Juni 2016 08:29:32 UTC+2 schrieb krma...@gmail.com: >> I want a single instance of a client handle to be initialized. >> >> Is it ok to declare the instance as >> >> var client MetricsClient >> >> and then initialize

Re: [go-nuts] Re: is it possible to speed up type assertion?

On Thu, 2 Feb 2017, at 09:20 AM, T L wrote: > > > On Thursday, February 2, 2017 at 4:58:32 PM UTC+8, Axel Wagner wrote: >> Hi, >> >> I can not really reproduce your results. I rewrote your code to use >> the builtin benchmarking: http://sprunge.us/IfQc >> Giving, on my laptop: >> >>

Re: [go-nuts] A Tour of Go: 45

On Tue, 7 Feb 2017, at 03:36 PM, Tomi Häsä wrote: > Is it normal to get 45 in the Flow Control example? > > https://tour.golang.org/flowcontrol/1 > > package main > > import "fmt" > > func main() { > sum := 0 > for i := 0; i < 10; i++ { > sum += i > fmt.Println(i) > } >

Re: [go-nuts] first try with templates

On Fri, 24 Feb 2017, at 11:40 PM, 'simon place' via golang-nuts wrote: > https://play.golang.org/p/NGU4kstcT- > > just trying to put one var into one template and i'm failing!, see > above, i've tried the docs, googling and randomly guessing. please > someone put me out of my misery.

Re: [go-nuts] Re: How to wait for specified amount of time in a loop without timer overhead

Maybe you could investigate something like this: https://www.snellman.net/blog/archive/2016-07-27-ratas-hierarchical-timer-wheel/ Disclaimer: I've not tried that method, but I saw it recently and filed it away as potentially useful -- Ian On Thu, Aug 4, 2016, at 11:14 AM, pi wrote: > You mean

Re: [go-nuts] Put the CancelFunc inside Context

On Mon, 27 Feb 2017, at 11:39 AM, dc0d wrote: > Is there any drawbacks if we put the CancelFunc of a cancellable > context.Context inside it's values? > > Problem: I needed a cross breed of WaitGroup and Context. So a > WaitGroup and it's CancelFunc is put inside it's values and are used >

Re: [go-nuts] Pop out first element of a slice.

On Tue, Sep 20, 2016, at 04:15 PM, Gabriel Adumitrachioaiei wrote: > You might be right, but I just don't realize how. Since capacity will > be 2x or 1.5x as before, reallocating the slice will not happen often. > Or do you think that this would still be worse than copying almost all > slice

Re: [go-nuts] Re: Ignoring UTF-8 BOM when decoding JSON

On Fri, Sep 23, 2016, at 03:35 PM, gary.willoug...@victoriaplumb.com wrote: > Yeah, the Json decoder should handle it. Maybe post a bug report? > https://github.com/golang/go/issues This has been raised before: https://github.com/golang/go/issues/12254 The answer is to use a reader to strip the

Re: [go-nuts] Pop out first element of a slice.

On Tue, Sep 20, 2016, at 03:54 PM, Gabriel Adumitrachioaiei wrote: > Well, the capacity will be reduced by one. I don't think this makes > much difference. It makes a difference for a long running service that repeatedly pushes and pops. Ian -- You received this message because you are

Re: [go-nuts] idea behind error interface and github.com/pkg/errors

On Fri, Sep 23, 2016, at 08:03 AM, Ahmy Yulrizka wrote: > I understand that, I dont either. But what's the idea behind not > having it at the first place? Is there more to it other than make it > more simple? One possibility is that it reduces the number of allocations (for storing frame

Re: [go-nuts] [ANN] httpsnoop, an easy way to capture http related metrics (response time, bytes written, and http status code)

On Thu, Nov 10, 2016, at 11:09 AM, Felix Geisendoerfer wrote: > I would love for net/http experts to take a look at the "Why this > package exists" section of the README, as well as the horrible hack > required to make things work: > >

Re: [go-nuts] [ANN] httpsnoop, an easy way to capture http related metrics (response time, bytes written, and http status code)

On Thu, Nov 10, 2016, at 02:21 PM, Felix Geisendörfer wrote: > Yes, I thought about it :). > > Did you read the "Why this package exists” section of the README? Yes but obviously not closely enough :) Kubernetes takes a hybrid approach:

Re: [go-nuts] [ANN] httpsnoop, an easy way to capture http related metrics (response time, bytes written, and http status code)

On Thu, Nov 10, 2016, at 03:21 PM, Felix Geisendörfer wrote: > >> I would think that 99+% of all type checks are to determine whether >> the supplied object provides additional functionality that can be >> used. I'm struggling to think of a situation where you would type >> check for the Flush

Re: [go-nuts] [ANN] httpsnoop, an easy way to capture http related metrics (response time, bytes written, and http status code)

ttp.Hijacker and io.ReaderFrom. > Perhaps they determined that the go core is only using these 2 > combinations. But that’s a bit too brittle of an invariant for me to > rely on. Therefor my package does the painful thing and implements all > 16 cases … > > Cheers > Felix >

Re: [go-nuts] fmt.Fscan without delimeter

On Wed, Oct 19, 2016, at 03:34 PM, Brian Picciano wrote: > Hi there! My use-case involves reading all data off of an io.Reader > and scanning it into a receiver value provided by the user of my > library. In many ways the same thing as fmt.Fscan. The difference is > that only one receiver value

Re: [go-nuts] [ANN] RAIS: Fully open-source IIIF-compliant image server... and BONUS: the exciting story of how Go made its way into UO Libraries

Great story and congrats on your project On Wed, Nov 23, 2016, at 06:24 PM, Jeremy Echols wrote: > *Project:* > > This one's been out a long time, but I wanted to get to a place where > it felt solid before announcing it to this list. RAIS >

Re: [go-nuts] So how exactly one does(should do) forking/pull requests in Golang world

This is how to do it with a git repository: http://blog.campoy.cat/2014/03/github-and-go-forking-pull-requests-and.html On Fri, Nov 25, 2016, at 10:31 AM, Mariusz Gronczewski wrote: > Hi, > > So let's say there is a project, living under path > github.com/local/project. Project is

Re: [go-nuts] Re: Bloom filter

On Sat, Jan 25, 2014, at 07:17 AM, greg.z...@gmail.com wrote: > Hello, I seem to be unable to Unmarshal a bitset over size 32.. What have you tried and what errors did you encounter? If you share some code then your question will be easier to answer. -- You received this message because

Re: [go-nuts] Short Variable Declaration Question

I think the sentence is supposed to read something like this: "The second declares out (and assigns to it as before) but only assigns a value to the existing err variable (without declaring it)" On Fri, Nov 18, 2016, at 03:02 PM, Terry McKenna wrote: > Hi Guys, > > I am reading "The Go

[go-nuts] Context cancellation

Hi all, I'm trying to understand the idioms around cancellation of contexts. I've read the godoc and the relevant blog (https://blog.golang.org/context). Should you always call the cancelFunc of a cancellable context? Or should it only be called if the operation is terminated before successful

Re: [go-nuts] Context cancellation

On Wed, Nov 2, 2016, at 10:35 PM, Gustavo Niemeyer wrote: > Hello there, > > On Wed, Nov 2, 2016 at 11:09 AM, Ian Davis <m...@iandavis.com> wrote: >> __ >> >> On Wed, Nov 2, 2016, at 12:56 PM, 'Axel Wagner' via golang- >> nuts wrote: >>> AIUI

Re: [go-nuts] Context cancellation

On Wed, Nov 2, 2016, at 12:12 PM, Axel Wagner wrote: > From https://godoc.org/context > >> Failing to call the CancelFunc leaks the child and its children until >> the parent is canceled or the timer fires. The go vet tool checks >> that CancelFuncs are used on all control-flow paths. > > I'm not

Re: [go-nuts] Context cancellation

On Wed, Nov 2, 2016, at 12:56 PM, 'Axel Wagner' via golang-nuts wrote: > AIUI: A child or grandchild function is not supposed to signal that. > They can return an error and let the parent cancel, or they can create > their own child context WithCancel and cancel that. Context doesn't > replace

Re: [go-nuts] Reasons why `go get` is entirely quiet by default

On Thu, Oct 13, 2016, at 10:48 PM, Nyah Check wrote: > Hi everyone, > > I don't know if someone may have talked of this here. But I just wish > to find out why `go get` is entirely quiet by default? Unlike other > package managers like npm or yarn. Someone asked this on the IRC > channel today and

Re: [go-nuts] Re: invitation to gophers.slack.com

As an aside, does anyone know if there are publicly available chatlogs from the slack channel? On Fri, Dec 9, 2016, at 02:46 PM, jorelli wrote: > ^ is this still current? I signed up sometime last week but haven't > been able to get on (._.) > > trying to get over to the chat for

Re: [go-nuts] How do you mitigate against nil pointer dereference

On Fri, 13 Jan 2017, at 10:12 AM, mailte...@gmail.com wrote: > > Hello, > > Have been struggling with mitigating against nil pointer deference and > i would appreciate if anyone can help > > Code 1: Works file > https://play.golang.org/p/lhOh9g5R9l > > > Code 2: Error >

Re: [go-nuts] golint if/else stmt and early returns

It's saying you don't need the else clauses since you have returned in the if clause. On Thu, 16 Mar 2017, at 05:11 PM, mhhc...@gmail.com wrote: > Hi, > > golint will report > > if block ends with a return statement, so drop this else and outdent > its block (move short variable

Re: [go-nuts] Why were tabs chosen for indentation?

On Sun, 19 Mar 2017, at 09:35 PM, Rob Pike wrote: > How wide should the indentation be? 2 spaces? 4? 8? Something else? > > By making the indent be a tab, you get to decide the answer to that > question and everyone will see code indented as wide (or not) as > they prefer. > > In short, this

Re: [go-nuts] Random Number Genaration - Golang -- Error/Bug

What version of Go are you using. I ran your code a few times and could not reproduce on my version which is a few commits off of tip. On Tue, 4 Apr 2017, at 09:37 AM, Mukund 8kmiles wrote: > Hi, > > It is a basic index out of range but inside *math.Rand() *and not in > objects that I

Re: [go-nuts] Why sort.IsSorted implemented with decrement?

On Fri, 21 Apr 2017, at 03:31 AM, Ivan Kurnosov wrote: > @Rob, > > honestly to me they look the same: > > > func IsSorted(data Interface) bool { > n := data.Len() for i := n - 1; i > ; i-- { if data.Less(i, i-1) { >return false } } return true } > > > func IsSortedForward(data

Re: [go-nuts] Infinite loops

On Tue, 18 Apr 2017, at 05:58 PM, Jan Mercl wrote: > On Tue, Apr 18, 2017 at 6:57 PM Frank Davidson > wrote: > > > Which loop uses the least computer resources? > > select{} Note though that select is not a loop so it will not infinitely repeat instructions.

Re: [go-nuts] Bug in regexp package?

On Sat, 11 Mar 2017, at 12:52 AM, fishyw...@gmail.com wrote: > Playground link is at https://play.golang.org/p/6uXcuL3iyF > > I tried to match "asdf \t\n" against `\s*` and it doesn't match, > but `\s+` works. Am I holding it wrong? FindStringIndex returns nil for no match but your

Re: [go-nuts] A naive question, why not move the len and cap fields of string and slice types into the underlying types?

Perhaps you can help the discussion by explaining the advantages you see in that change? On Fri, 3 Mar 2017, at 11:44 AM, T L wrote: > > > On Friday, March 3, 2017 at 4:27:02 PM UTC+8, Konstantin > Khomoutov wrote: >> On Thu, 2 Mar 2017 23:49:52 -0800 (PST) >> T L

Re: [go-nuts] Zero value of the map

On Tue, 18 Apr 2017, at 03:20 PM, Chris Hopkins wrote: > I'm not sure what you mean by the append doesn't modify the original. > Append will use the same backing store (if there is available capacity > in it) and by definition the address of the slice in question must be > invariant across its

Re: [go-nuts] Zero value of the map

On Tue, 18 Apr 2017, at 01:04 PM, Tad Vizbaras wrote: > > The argument could be that slices are read-only too. Just that > "append" is special and it makes zero value slices useful. > var a []int > a[0] = 1 // Fails. > // panic: runtime error: index out of range > > I am just curious

Re: [go-nuts] Recover considered harmful

On Mon, 24 Apr 2017, at 12:06 PM, Kevin Conway wrote: > I'd say that recover() is not a problem but, instead, a symptom of > panic() being available to developers. I'd flip the title and say > panic() should be considered harmful. To quote from > https://blog.golang.org/defer-panic-and-recover :>

Re: [go-nuts] Re: Semicolons in Go

With respect, you are tilting at windmills. You replied to an 8 year old post from the design phase of the language. It's now 2017 and no-one wants to step back in time to change what has turned out to be a very successful design. You stated in your first message that you "simply won't use the

Re: [go-nuts] Re: Do I need to unset variables in a for loop?

On Tue, 9 May 2017, at 05:07 PM, Jesper Louis Andersen wrote: >> >> I don't believe this is helpful to the questioner who was simply >> explaining their understanding.>> > > A reference to cargo cults is useful insofar one should study why > something happens rather than copying a hearsay. On

Re: [go-nuts] Re: suggest: improve go gen intergration for non core code ?

On Tue, 9 May 2017, at 12:12 PM, mhhc...@gmail.com wrote: > Maybe that could be a simple go sub command: > > go gun [...packages] > > gen+run=>gun > > Sure i could do on my end, it won t be adopted so ... useless. Usually go generate is intended to be run once and the results committed to

Re: [go-nuts] Why no return statement for *timerCtx in func parentCancelCtx(context.go)

On Wed, 17 May 2017, at 01:40 PM, Guohua Ouyang wrote: > I was confusing when I read the lines #L279-#L280 > https://github.com/golang/go/blob/master/src/context/context.go#L279 it will loop with the new value of parent > -- > You received this message because you are subscribed to the Google

Re: [go-nuts] Re: Do I need to unset variables in a for loop?

On Tue, 9 May 2017, at 04:31 PM, Pierre Durand wrote: >> I "believe" in PHP a for loop keeps the variable in memory until the >> end of the script and if you want to remove the variable from memory >> you need to unset the variable to help conserve memory.> >

Re: [go-nuts] go1.8 and json.NewDecoder(resp.Body)

On Tue, 23 May 2017, at 01:33 PM, John Shahid wrote: > The only way I can think of to fix this is either using > ioutil.ReadAll(resp.Body) combined with json.Unmarshal, or use > json.NewDecoder() followed by ioutil.ReadAll and discard the result.> What do > you all think ? > I noticed just

Re: [go-nuts] Re: Problem with checking errors when testing

On Sun, 21 May 2017, at 05:32 PM, breamore...@gmail.com wrote: > > On Sunday, May 21, 2017 at 11:52:41 AM UTC+1, Tamás Gulácsi wrote: >> A nil does not have type >> A nil interface may have. See >> http://spf13.com/post/when-nil-is-not-nil/>> Why don't you use type switch? > > I've no idea

Re: [go-nuts] "defer go"

On Tue, 10 Oct 2017, at 02:27 PM, Shawn Milochik wrote: > On Tue, Oct 10, 2017 at 9:13 AM, Scott Cotton labs.com> wrote:>> Hi all, >> >> 1. "defer go" extend defers to work on goroutine exit with >>mechanism just like defer, but if we say "defer go f()">> instead of >> "defer

Re: [go-nuts] Why can't I call a pointer-receiver method on a temperary but addressable struct literal?

On Fri, 13 Oct 2017, at 02:02 PM, Ian Davis wrote: > On Fri, 13 Oct 2017, at 01:41 PM, Cholerae Hu wrote: >> https://golang.org/ref/spec#Calls >>> If x is addressable[1] and 's method set contains m, x.m() is >>> shorthand for ().m()>> >> https:

Re: [go-nuts] binary.Read()

On Thu, 5 Oct 2017, at 08:58 AM, Johan terryn wrote: > In following code: > > type JPGFile struct { > Exif_SOI [2]byte Exif } type Exif struct { APP1Marker [2]byte > APP1DataSize uint16 ExifHeader [6]byte TIFFHeader[6]byte }> func > ReadFile(filename string) (JPGFile, error) {

Re: [go-nuts] Strange behavior when dealing with certain emojis

On Wed, 11 Oct 2017, at 11:16 AM, Gianguido Sorà wrote: > Uhm, so the Replacer sees it as two separate entities, and replaces > the part of the composite that matches one of the cases. Sort of. The emoji is really just the "\xE2\x83\xA3" part (or "\U20e3") which puts a keycap symbol around

Re: [go-nuts] Strange behavior when dealing with certain emojis

On Wed, 11 Oct 2017, at 09:57 AM, Gianguido Sorà wrote: > > I'm writing a small utility which uses a strings.Replacer to process > some substitutions in some strings; these strings contains UTF-8 > characters as well as emojis.> > Here you can find a playground with an example: >

Re: [go-nuts] Strange behavior when dealing with certain emojis

On Wed, 11 Oct 2017, at 10:33 AM, Ian Davis wrote: > > On Wed, 11 Oct 2017, at 09:57 AM, Gianguido Sorà wrote: >> >> I'm writing a small utility which uses a strings.Replacer to process >> some substitutions in some strings; these strings contains UTF-8 >>

Re: [go-nuts] Debugging a mutex/scheduling issue

This sounds like https://github.com/golang/go/issues/13086 On Mon, 16 Oct 2017, at 09:01 PM, Caleb Spare wrote: > I have a server which is doing log processing and I'm trying to > improve throughput. The bottleneck is access to a shared resource > protected by a sync.Mutex. The issue is that even

Re: [go-nuts] Parsing a CSV column with partially double-quotes in it

Try setting r.LazyQuotes=true On Thu, 28 Sep 2017, at 09:56 PM, Lantos István wrote: > > I want to parse the following CSV structure. The column separators > are tabs:> > *package main* > > *import (* > *"encoding/csv"* > *"fmt"* > *"log"* > *"strings"* > *)* > > *func main()

Re: [go-nuts] public interface with private method: totally dubious ? In which case is it useful ?

It's a pattern that can be used to prevent external implementations of the interface. Another example is the text/template package in the standard library: https://github.com/golang/go/blob/master/src/text/template/parse/node.go#L21 On Mon, 4 Sep 2017, at 01:21 PM, mhhc...@gmail.com wrote: > hi,

Re: [go-nuts] Urgent: race condition with ticker channels

On Mon, 6 Nov 2017, at 12:14 PM, arunabh.ar...@gmail.com wrote: > Hi, > > I am fairly new to Golang, so please excuse if this is a silly > question. I could not find any answers on the web.> > Code portion A: > > rf.mu.Lock() > rf.electionTicker = time.NewTicker(rf.currentTimeout) >

Re: [go-nuts] Is the result right or not?

You can see your error if you initialise i to -1 before the loop: v[i] is evaluated before i is incremented. On Wed, 6 Dec 2017, at 02:26 PM, T L wrote: > > package main > > import "fmt" > > func main() { > var i int > var x = []int{3, 5, 7} > var y = make([]int, 3) > for i, y[i] =

Re: [go-nuts] slice of pointer of struct vs slice of struct

On Fri, 20 Oct 2017, at 06:34 AM, Jan Mercl wrote: > On Fri, Oct 20, 2017 at 7:25 AM Feby Tanzil > wrote:> > > Which is better & preferable in Go? > > Depends on size of T. How does that affect the size of []T or []*T ? Ian -- You received this message because you are

Re: [go-nuts] Underlying arrays and their slices passed to functions

On Thu, 4 Jan 2018, at 6:55 PM, Frank Davidson wrote: > Thanks!!! Very helpful blog post!! > > So, in proc, the slice header is copied, then an entirely new array is > created - []byte{5,6,7,8} - and the slice header copy is set to point > at that new array, and then discarded, whereas in proc 2,

Re: [go-nuts] Re: Table Driven Test (TDT) and log only failed test case

Define a logging interface in your main package, then pass an implementation of the interface in your test that forwards writes to t.Logf On Tue, 30 Jan 2018, at 2:11 PM, Jérôme LAFORGE wrote: > No, it is not possible to use t.Log within the code you want to test.> The > function IsBuggyEven is

Re: [go-nuts] glog + vendor = "flag redefined: log_dir"?

On Tue, 30 Jan 2018, at 7:59 AM, porridge via golang-nuts wrote: > I admit I'm somewhat new to Golang, how do I solve this problem? > My program uses two libraries, both of which have > github.com/golang/glog in their /vendor/ directories.> This results in a > panic at runtime, apparently because

Re: [go-nuts] what is the out put of this code and why?

If it compiled (there are syntax errors) then I'd expect it to print each of the numbers 0..99 doubled, followed by a repeat of the last printed value. Each iteration of the second loop you set y = x[i]+i What are you trying to achieve? On Thu, 1 Feb 2018, at 9:43 AM, Ganesh kumar wrote: >

Re: [go-nuts] Matrix Operation

Try gonum https://godoc.org/gonum.org/v1/gonum/mat On Tue, 2 Jan 2018, at 10:58 AM, meher akshay wrote: > Hi everyone, > > I want to find the eigen vectors and values of a matrix in golang. > Please help me as I am not able to do it using the provided docs > > Thanks > > -- > You

Re: [go-nuts] Http/net - post and decode json data part

On Tue, 14 Aug 2018, at 11:19 AM, nicolas_boiteux via golang-nuts wrote:> Hello > > I need some assistance to decode a json content > > I tried to use only usefull code to do it but don't success to > retrieve the data part of the json result.> > > var user struct {Firstname string

Re: [go-nuts] Http/net - post and decode json data part

On Tue, 14 Aug 2018, at 12:44 PM, nicolas_boiteux via golang-nuts wrote:> the raw of response.body is this > > > { "args": {}, "data": > "{\"firstname\":\"Nic\",\"lastname\":\"Raboy\"}", "files": {}, > "form": {}, "headers": {"Accept-Encoding": "gzip", > "Connection": "close",

Re: [go-nuts] How to find other packages using this package?

On Fri, 17 Aug 2018, at 5:08 PM, Tad Vizbaras wrote: > I have a package. Let say a/b/c. How to find what are other packages > in my GOPATH using it?> > I am basically trying to clean up GOPATH from all unused packages > installed and downloaded over the years.> Finding "dead" packages in GOPATH.

Re: [go-nuts] How to deal with binaries compilation with go modules enabled?

On Thu, 30 Aug 2018, at 3:37 PM, Denis Cheremisov wrote: > Hi! > With Go 1.10 and earlier one can install binaries via regular `go > get`, `go get golang.org/x/tools/cmd/goimports` for instance.> It doesn't > work with Go modules enabled: > > $ go get golang.org/x/tools/cmd/goimports > go:

Re: [go-nuts] "type MyByte byte", then how to convert []MyByte to []byte so that I can use bytes.Xyz functions for []MyByte?

A loop is the usual way. On Wed, 24 Jan 2018, at 12:57 PM, d...@veryhaha.com wrote: > except unsafe ways. > > -- > You received this message because you are subscribed to the Google > Groups "golang-nuts" group.> To unsubscribe from this group and stop > receiving emails from it, > send

Re: [go-nuts] Setting font in draw2d

On Tue, 11 Sep 2018, at 3:01 PM, viktor.oge...@gmail.com wrote: > Hi, > > I am struggling to load and use custom fonts from ttf files in draw2d > (used since I need rotated text).> > To illustrate: https://play.golang.org/p/6-rswetZOr8 give the output:> > 2018/09/11 15:52:43 open

Re: [go-nuts] A Go Const suggester?

On Wed, 28 Mar 2018, at 8:32 AM, Patrik Iselind wrote: > Is there such a tool that can go through a GoLang code base and > suggest values that might be a good idea to convert into constants?> > If a value (for example an int or a string, but excluding values that > are already constants) is hard

Re: [go-nuts] The &(*x) idiom for copying.

On Wed, 28 Mar 2018, at 5:21 PM, thwd wrote: > https://play.golang.org/p/pjyoPX99Zr1 > > Taking the address of an explicit dereference has different behavior > than implicitly dereferencing and taking address.> > Is this the desired behavior? It surprised me. I think the naming of your

Re: [go-nuts] Why doesn't this benchmark test end?

On Mon, 22 Oct 2018, at 4:36 PM, Sathish VJ wrote: > So, I also tried with > *go test -v -bench=. -test.benchtime=0.1s * > and that does complete. > > But is the implication that StopTimer/StartTimer is too costly to use > even for this simple benchmark? See

Re: [go-nuts] Variadic functions using ...interface{}

On Sun, 21 Oct 2018, at 10:52 PM, Justin Israel wrote: > I was getting an error trying to pass a []string to this elasticsearch > API ctor:> > https://github.com/olivere/elastic/blob/v6.2.11/search_queries_terms_set.go#L26> > > func NewTermsSetQuery(name string, values ...interface{}) >

Re: [go-nuts] `go mod download -json` does not product valid json?

On Sat, 6 Oct 2018, at 3:07 PM, 'kalekold' via golang-nuts wrote: > `go mod download -json` does not product valid json? Is this a known > issue or am I missing something? Do you have an example that shows the invalid json? -- You received this message because you are subscribed to the Google

Re: [go-nuts] Re: Why google doesnt make jdbc like library for go?

On Fri, 21 Sep 2018, at 3:36 AM, ascarra...@gmail.com wrote: > He has a valid point. Most of the enterprise applications uses Oracle > DB. I for one is looking for an oracle driver similar to what JDBC > does (a simple to use, no separate installation needed). All of Go > oracle drivers available

Re: [go-nuts] Huge map[string]*Object and GC where *Object is from sync.Pool

On Thu, 27 Sep 2018, at 2:04 PM, Peter Mogensen wrote: > > Of course... it requires that you handle any collisions in hashing the > string key to an int yourself, but wrt. the value I curious if anyone > can see issued with just storing a uintptr instead of the pointer for > sync.Pool managed

Re: [go-nuts] Huge map[string]*Object and GC where *Object is from sync.Pool

On Thu, 27 Sep 2018, at 3:06 PM, Peter Mogensen wrote: > > > On 09/27/2018 03:58 PM, Robert Engels wrote: > > It wasn’t necessarily a warning to you :) > > > > It comes from the days of GC bashing in Java and so everyone tried to > > manually write garbage free programs using pools and it had

[go-nuts] Unable to view go-review.googlesource.com on Firefox 60.x

Hi all, Since upgrading to Firefox 60.3 on Linux I am unable to view any pages on https://go-review.googlesource.com/ and I wondered if anyone else was seeing this problem or if it's an issue with my setup? Chromium renders the pages fine. When I view source with Firefox I see the following:

Re: [go-nuts] Using "er" and "able" for interfaces

On Wed, 16 Jan 2019, at 2:42 PM, Victor Giordano wrote: > As far i can get to understand the english language (i'm not a native > speaker), the "er" seems to denotes or describe things in a more "active way" > (the thing that they actually do by itself), and the "able" describes things > in a

Re: [go-nuts] Unable to delete multiple records (multiple ids) on hitting endpoint

On Thu, 17 Jan 2019, at 8:13 AM, aniruddha.dwiv...@nytimes.com wrote: > Hi I am using NYT's Marvin framework which internally uses gorilla mux. I am > able to delete single record when I pass single id as json object in request > body using postman but I don't know how to handle array of json

Re: [go-nuts] Using "er" and "able" for interfaces

On Thu, 17 Jan 2019, at 7:48 PM, Jakob Borg wrote: > On 16 Jan 2019, at 15:42, Victor Giordano wrote: > >> >> As far i can get to understand the english language (i'm not a native >> speaker), the "er" seems to denotes or describe things in a more "active >> way" (the thing that they

Re: [go-nuts] Json and value

On Wed, 12 Dec 2018, at 9:46 AM, olivier.gale...@gmail.com wrote: > i have the same response > [{"id": > 62,"nom":"TEST","URI":"http://192.168.0.31/param/","IP":"192.168.0.31","MacAdress":"DE:AD:BE:EF:FE:ED","created_at":"2018- > 12-06T20:44:57.131380+01:00","update_at":"2018-12- >

[go-nuts] Missing docker hub images for Go 1.11.4?

Is there a problem with the docker hub build at the moment? Currently only Go 1.11.3 is available there: https://hub.docker.com/_/golang/ -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails

Re: [go-nuts] Json and value

On Wed, 12 Dec 2018, at 6:03 AM, olivier.gale...@gmail.com wrote: > Hello, > > I trie to get value from api request > i have this response > [{"id": > 62,"nom":"TEST","URI":"http://192.168.0.31/param/","IP":"192.168.0.31","MacAdress":"DE:AD:BE:EF:FE:ED","created_at":"2018- >

Re: [go-nuts] Re: Strange glog.V(level) behavior in go.1.11.2 ?

The best thing to do would be to make a self contained example that reproduces it and file an issue at https://github.com/golang/go/issues On Sat, 8 Dec 2018, at 8:49 AM, Jan wrote: > I still haven't solved the issue (I just keep that odd line _ = ) > in the middle of the code.> > But I quickly

Re: [go-nuts] Unable to view go-review.googlesource.com on Firefox 60.x

On Fri, 16 Nov 2018, at 6:05 PM, Wagner Riffel wrote: > I'm either on 60.3 under linux and it's working fine. OK thanks, it must be something on my system -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop

Re: [go-nuts] Announcing a Fyne GUI toolkit

On Fri, 14 Sep 2018, at 6:02 PM, Andrew Williams wrote: > > It's now well into development and ready for people to get involved. > There is a long way to go but it feels like a solid base.> Instructions for > getting started, if you need them, are at >

Re: [go-nuts] Generics - Why contracts?

On Tue, 11 Sep 2018, at 3:23 PM, Jeff wrote: > TLDR; So why contracts and not templates or something else? Is there > a benefit to contracts that I don't appreciate (very likely, cause I > don't understand them)? Are there issues with a template approach? > If this has been addressed elsewhere,

Re: [go-nuts] why add the useless function in interface?

On Tue, 26 Mar 2019, at 12:37 PM, XiaoBing Jiang wrote: > Hi, all: > > in src/cmd/compile/internal/syntax/nodes.go, why need the aNode() function in > the interface? > > type Node interface { > // Pos() returns the position associated with the node as follows: > // 1) The position of a node

Re: [go-nuts] Go modules do not respect vendor folder of dependencies (is this by design?)

On Sun, 10 Feb 2019, at 12:03 AM, s...@pion.ly wrote: > * I have a project 'A' that is importing 'B' > * 'B' uses a vendor folder, if you delete the vendor folder the project does > not compile. > * With `GO111MODULE=on` I am unable to project 'A'. It tries to pull the > latest of 'B', and

Re: [go-nuts] What does a deadlock mean in golang?

It's because the goroutine executing the main function blocks until the last channel send completes. But since you don't have another goroutine receiving from the channel the program cannot continue and remains in a blocked state. This is the cause of the deadlock. On Tue, 29 Jan 2019, at 8:55

Re: [go-nuts] how to prevent go1.13 go directive being written in an go directive-free go.mod?

https://golang.org/cmd/go/#hdr-The_go_mod_file documents the go directive as the "expected language version". It seems it would be better described there as the "minimum language version". On Tue, 11 Jun 2019, at 2:43 PM, Ian Lance Taylor wrote: > On Tue, Jun 11, 2019 at 6:40 AM Ian Lance

Re: [go-nuts] how to prevent go1.13 go directive being written in an go directive-free go.mod?

Yes, I wrote minimum when I meant to write maximum! Sorry for the confusion. On Tue, 11 Jun 2019, at 3:37 PM, t hepudds wrote: > As far as I understand, it is not a minimum version of the language. > > Also, a key point that is easy to miss is that the language version is > distinct from

Re: [go-nuts] A proof-of-concept implementation of my generics proposal for Go

Syntactically this looks very good. I have read your gist but I'd like to see this as a proposal in the Go issue tracker. Ian On Thu, 27 Jun 2019, at 3:29 PM, Michal Strba wrote: > Hey everybody! > > A few weeks ago, I posted about my proposal for generics in Go 2. You can > find it here. >

Re: [go-nuts] Re: `on err` alternative to `try()` has traction...?

On Tue, 9 Jul 2019, at 11:43 AM, Nicolas Grilly wrote: > >> So why complicate the language with a new keyword which has really no >> purpose. > > As mentioned in the proposal, try is not a new keyword, it's just a new > built-in function. It's quite a bit more than a just new function since

Re: [go-nuts] sync.Mutex encounter large performance drop when goroutine contention more than 3400

On Tue, 20 Aug 2019, at 9:33 AM, changkun wrote: > Hi Robert, > > Thanks for your explanation. But how could I "logged the number of operations > done per Go routine", which particular debug settings you referring to? > It is reasonable that sync.Mutex rely on runtime scheduler but channels do

Re: [go-nuts] Re: mutual exclusion algorithm of Dijkstra - strange behaviour

On Fri, 16 Aug 2019, at 7:09 PM, dr.ch.mau...@gmail.com wrote: > Dear Community and dear Go-developers, > > Meanwhile it is clear why things do not work: > The Go-Scheduler is unable to allow to switch to another goroutine in > busy-waiting-loops - > the only possibility to get around that

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