Re: [go-nuts] Dereferencing a pointer pointer interface value

uhm, there is a bit of a mix-up with the yes-vs-no thing and negating. I'm apparently a bit tired, disregard the actual "no" and focus on the rest of the reply, explaining why what you want can't be done :) On Sat, Jan 13, 2018 at 1:35 AM, Axel Wagner wrote: > > > On Fri, Jan 12, 2018 at 11:23 P

Re: [go-nuts] Dereferencing a pointer pointer interface value

On Fri, Jan 12, 2018 at 11:23 PM, Peter Mogensen wrote: > > > On 2018-01-12 22:22, Axel Wagner wrote: > > Yes, you can *test* if the dynamic value has a specific type (and > > extract it if so). That is not the same as operating on the dynamic > > value (e.g. by dereferencing it) *without* knowin

[go-nuts] Re: Go on processor without SSE

See: https://github.com/golang/go/issues/5266 Essentially, you need to recompile go with: export GO386=387 export GOOS=linux export GOARCH=386 Then you can successfully build using the same. (This allowed go to work on my Alix board.) Worked for Go 1.1beta, might still work now. On Saturday, 13

Re: [go-nuts] Dereferencing a pointer pointer interface value

On 2018-01-12 22:22, Axel Wagner wrote: > Yes, you can *test* if the dynamic value has a specific type (and > extract it if so). That is not the same as operating on the dynamic > value (e.g. by dereferencing it) *without* knowing its type. I know I can test the type. But the issue was specifica

[go-nuts] Re: json: unmarshal map of structs

Unfortunately that is not possible; it must be map[string]interface{} for my code to work correctly. I easily, hoping there are no bugs, managed to patch gopkg.in/yaml.v2 to work as I want, but the code of github.com/naoina/toml and encoding.json are more complex: https://pastebin.com/Arvz0WJB

[go-nuts] Re: json: unmarshal map of structs

You are unmarshalling into a map[string]interface{}. Thus, the unmarshal function is basically not told what the value should be and thus unmarshals the JSON object into a map[string]interface. If you want the value to be a Postgres struct, then config must specify a Postgres value. See, e.g.

Re: [go-nuts] Dereferencing a pointer pointer interface value

On Fri, Jan 12, 2018 at 7:23 PM, Peter Mogensen wrote: > > On 2018-01-12 19:09, 'Axel Wagner' via golang-nuts wrote: > > One would think the result is rather well defined. > > > > It's not. The value in the interface doesn't have to be a pointer, so > > this is, in general, not defined at all.

[go-nuts] json: unmarshal map of structs

Hi. Consider this example: https://play.golang.org/p/q7oEp40ZCIL Unmarshal replaces the existing map entry with key "Postgres". The documentation says: To unmarshal a JSON object into a map, Unmarshal first establishes a map to use. If the map is nil, Unmarshal allocates a new map.

Re: [go-nuts] Dereferencing a pointer pointer interface value

On 2018-01-12 19:09, 'Axel Wagner' via golang-nuts wrote: > One would think the result is rather well defined. > > > It's not. The value in the interface doesn't have to be a pointer, so > this is, in general, not defined at all. No, but it's not like you cannot ask about interface{} in ge

Re: [go-nuts] Dereferencing a pointer pointer interface value

On Fri, Jan 12, 2018 at 6:32 PM, Peter Mogensen wrote: > Hi, > > I somehow ended up with an interface{} value being a **SomeStruct{} > > ... and I need to dereference it to an interface{} holding *SomeStruct{} > in a generic way (ie. without knowing about the type SomeStruct) > > I'm not at all s

[go-nuts] Dereferencing a pointer pointer interface value

Hi, I somehow ended up with an interface{} value being a **SomeStruct{} ... and I need to dereference it to an interface{} holding *SomeStruct{} in a generic way (ie. without knowing about the type SomeStruct) I'm not at all sure this is good idea or the right way for the specific code, but out

[go-nuts] json array order preserved?

Yes. Except when a coworker added a tricky MarshalJSON method to that type... -- 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 an email to golang-nuts+unsubscr...@googlegroups

[go-nuts] json array order preserved?

Noob question... when I marshal an array into a JSON, is the order of that array preserved? -- 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 an email to golang-nuts+unsubscr.

Re: [go-nuts] Re: Is my understanding on numeric literals right?

On Friday, January 12, 2018 at 9:00:34 AM UTC-5, di...@veryhaha.com wrote: > > > > On Friday, January 12, 2018 at 5:11:10 AM UTC-5, Axel Wagner wrote: >> >> Hm, this thread has actually opened up a question I don't have a good >> answer to. >> >> On Fri, Jan 12, 2018 at 9:47 AM, wrote: >> >>> t

Re: [go-nuts] how to add items to an array without append function.

Hi Marvin, Awesome explanation. I have learnt alot things through your mail.once again you made my day. Thank you On 12-Jan-2018 9:31 PM, "Marvin Renich" wrote: > * pradam [180112 01:45]: > > I'm Newbie to golang, > > Welcome to Go! Many newbies often use "golang" rather than "Go" as the > l

Re: [go-nuts] how to add items to an array without append function.

* pradam [180112 01:45]: > I'm Newbie to golang, Welcome to Go! Many newbies often use "golang" rather than "Go" as the language name, and most old-timers usually ignore this incorrect usage, but golang is an artifact of the web site's hostname, golang.org. Also, using golang in web searches fo

Re: [go-nuts] Re: Updating specific elements of a big json file.

That seems to be the only solution. Thanks. On Friday, January 12, 2018 at 12:01:19 AM UTC+1, Burak Serdar wrote: > > > > On Jan 11, 2018 3:36 PM, "Doğan Kurt" > > wrote: > > I think i wasn't perfectly clear. When i say update i actually meant > insert, delete, update. > > I will delete big blo

Re: [go-nuts] Go on processor without SSE

On Fri, Jan 12, 2018 at 2:03 AM, wrote: > > I'm searching how to compile golang to use it on an old 32bits cpu (AMD > Geode) without SSE. > > Any idea? Tell us exactly what you did and exactly how it failed. Ian -- You received this message because you are subscribed to the Google Groups "go

Re: [go-nuts] Non-Coherent Caches

On Fri, Jan 12, 2018 at 2:03 AM, Chris Hopkins wrote: > > Does anyone know of an architecture that go runs on that has non-coherent > data caches? If so, is there a mechanism in the language/tool chain to > protect against the issues of this? > > Background: > I was watching a video on the go trac

Re: [go-nuts] Re: Is my understanding on numeric literals right?

* 'Axel Wagner' via golang-nuts [180112 05:11]: > Hm, this thread has actually opened up a question I don't have a good > answer to. > > On Fri, Jan 12, 2018 at 9:47 AM, wrote: > > an untyped interger literal/constant is representable float64 type for > > sure. > > an untyped floating-point lite

Re: [go-nuts] how to add items to an array without append function.

On Fri, Jan 12, 2018 at 2:11 AM, pradam wrote: > Hi Shawn, > > Thank you, it was very helpful. I am not complaining about the language > just exploring the how golang works. > > Awesome! You're welcome. Sorry I misinterpreted your wording. -- You received this message because you are subscribed

[go-nuts] Re: How golang garbage collector works

https://blog.golang.org/go15gc On Thursday, January 11, 2018 at 10:50:24 AM UTC-5, golangguy wrote: > > Hi > > I am new to golang, and had background in C/C++ , can you some one give me > information/explanation about how garbage collectors in golang works ? > > Thanks, > > -- You received thi

Re: [go-nuts] Re: Is my understanding on numeric literals right?

On Friday, January 12, 2018 at 5:11:10 AM UTC-5, Axel Wagner wrote: > > Hm, this thread has actually opened up a question I don't have a good > answer to. > > On Fri, Jan 12, 2018 at 9:47 AM, > wrote: > >> then can I say >> an untyped rune literal/constant is representable int type for sure. >>

[go-nuts] Go on processor without SSE

Hi all I'm searching how to compile golang to use it on an old 32bits cpu (AMD Geode) without SSE. Any idea? -- 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 an email to go

[go-nuts] Getting oauth2 token without verifying certificate option

Hi, I am trying to get the oauth2 token from an internal token provider. I am using this to get the oauth2 token- package main import ( "golang.org/x/oauth2/clientcredentials" "golang.org/x/net/context" "fmt" "golang.org/x/oauth2" "crypto/tls" "net/http" ) func main(){ // this

Re: [go-nuts] Re: Is my understanding on numeric literals right?

Hm, this thread has actually opened up a question I don't have a good answer to. On Fri, Jan 12, 2018 at 9:47 AM, wrote: > then can I say > an untyped rune literal/constant is representable int type for sure. > Yes, rune is an alias for int32 and int is specified to have at least the precision

[go-nuts] Non-Coherent Caches

Hi All, Does anyone know of an architecture that go runs on that has non-coherent data caches? If so, is there a mechanism in the language/tool chain to protect against the issues of this? Background: I was watching a video on the go trace tool (https://www.youtube.com/watch?v=ySy3sR1LFCQ) in t

[go-nuts] Re: Any plans to add ASN.1 PER support?

ASN.1 is still alive and present in telecom applications. The PER encoding is missing in the go library, unfortunately... Den torsdag 11 januari 2018 kl. 20:04:50 UTC+1 skrev Pat Farrell: > > On Thursday, January 11, 2018 at 10:50:24 AM UTC-5, David Wahlstedt wrote: >> >> I wonder if there are an

Re: [go-nuts] Re: Is my understanding on numeric literals right?

then can I say an untyped rune literal/constant is representable int type for sure. an untyped interger literal/constant is representable float64 type for sure. an untyped floating-point literal/constant is representable complex128 type for sure. On Friday, January 12, 2018 at 2:42:20 AM UTC-5, A

Re: [go-nuts] Re: Is my understanding on numeric literals right?

On Friday, January 12, 2018 at 2:42:20 AM UTC-5, Axel Wagner wrote: > > What do you mean by "potential type"? There is no such concept. > > The spec is pretty clear, on the > subject, IMO. There is also this blog post >