# Bug in os.Args?
**URL:** https://talk.remobjects.com/t/bug-in-os-args/21639
**Category:** Gold
**Tags:** island
**Created:** [March 20, 2020, 10:08pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639 "2020-03-20T22:08:46Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@ormente](https://talk.remobjects.com/u/ormente)
#### Post date: [March 20, 2020, 10:08pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/1 "2020-03-20T22:08:46Z")
Hi!
I wanted to try Gold and made some very basic command line apps. When i tried to access os.Args i ran into troubles: it seems to allways return an empty array on island widows (while working fine for .net).
Is this a known bug?
Thanks
---
### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [March 20, 2020, 10:30pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/2 "2020-03-20T22:30:50Z")
> [@ormente](#):
>
> Is this a known bug?
Not a _known_ bug, But certainly looks like a bug; I’ll have this looked at ASAP.
---
### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [March 20, 2020, 10:30pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/3 "2020-03-20T22:30:53Z")
Thanks, logged as [bugs://84090](https://www.remobjects.com/portal/bugs/?id=84090)
---
### Author:  [@ormente](https://talk.remobjects.com/u/ormente)
#### Post date: [March 21, 2020, 12:50pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/4 "2020-03-21T12:50:09Z")
Thanks a lot, Marc.
---
### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [March 21, 2020, 2:08pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/5 "2020-03-21T14:08:09Z")
Of course!
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### Author:  [@ormente](https://talk.remobjects.com/u/ormente)
#### Post date: [March 21, 2020, 9:45pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/6 "2020-03-21T21:45:19Z")
BTW it seems there is also a problem with “time” on island windows. This code :
> ```
> start := time.Now()
> time.Sleep(200 * time.Millisecond)
> t := time.Now()
> fmt.Printf("Elapsed: %v mcs.\n", t.Sub(start).Microseconds())
> fmt.Printf("Elapsed: %v ms.\n", t.Sub(start).Milliseconds())
> fmt.Printf("Elapsed: %v ms.\n", t.Sub(start).Seconds()*1000)
>
> ```
displays :
> ```
> Elapsed: 20 mcs.
> Elapsed: 0 ms.
> Elapsed: 0.0203 ms.
>
> ```
While compiled for .net it prints the correct :
> ```
> Elapsed: 201246 mcs.
> Elapsed: 201 ms.
> Elapsed: 201.2467 ms.
>
> ```
From an external timer it looks like both apps sleeps for about 200ms.
---
### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [March 22, 2020, 1:16pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/7 "2020-03-22T13:16:03Z")
> [@ormente](#):
>
> From an external timer it looks like both apps sleeps for about 200ms.
So Sleep works correctly, “just” either t.Sub() seems to be broken? Logging.
---
### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [March 22, 2020, 1:16pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/8 "2020-03-22T13:16:14Z")
Thanks, logged as [bugs://84092](https://www.remobjects.com/portal/bugs/?id=84092)
---
### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [March 22, 2020, 1:17pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/9 "2020-03-22T13:17:00Z")
> [@ormente](#):
>
> BTW it seems there is also a problem with “time” on island windows. This code :
I’ll make sure both pf these get looked at tomorrow.
---
### Author:  [@ormente](https://talk.remobjects.com/u/ormente)
#### Post date: [March 22, 2020, 1:57pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/10 "2020-03-22T13:57:22Z")
Yes, Sleep seems to work corectly. Changing the value is correctly reflected in the total run time measured externaly.
No emergency here, but thanks again! 👏 👍
---
### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [March 22, 2020, 2:38pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/11 "2020-03-22T14:38:53Z")
> [@ormente](#):
>
> I wanted to try Gold and made some very basic command line apps. When i tried to access os.Args i ran into troubles: it seems to allways return an empty array on island widows (while working fine for .net).
Guess this explains it somewhat:
```oxygene
var Args: go.builtin.Slice := {$IF ISLAND}new go.builtin.Slice(''){raise new NotImplementedException}{$ELSEIF ECHOES}go.builtin.string.PlatformStringArrayToGoSlice(Environment.GetCommandLineArgs){$ENDIF};
```
😂
workaround for now: if you define your main() menthod to accept a string array, you should get the arguments there, ok.
---
### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [March 25, 2020, 3:09pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/12 "2020-03-25T15:09:47Z")
[bugs://84090](https://www.remobjects.com/portal/bugs/?id=84090) got closed with status fixed.
---
### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [March 27, 2020, 2:39pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/13 "2020-03-27T14:39:03Z")
> [@RemObjectsSoftware](#):
>
> [bugs://84090](https://www.remobjects.com/portal/bugs/?id=84090) got closed with status fixed.
This was fixed, but I’m afraid we neglected to run a new full release build of GBL (which takes a long time 😉 prior to starting todays build, so 2497 will not have this fix. I can sen you a copy of the fixed GBL tomorrow (or you can build it yourself from github of course; I recommend only building the target you need, then, to seep it up ;).
---
### Author:  [@ormente](https://talk.remobjects.com/u/ormente)
#### Post date: [March 27, 2020, 6:02pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/14 "2020-03-27T18:02:11Z")
Again, thanks a lot Marc. Nothing blocking here for me, I’m just playing and learning so I will explore other parts of Element during the next week (if time permits). 🙂
---
### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [March 31, 2020, 5:43pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/15 "2020-03-31T17:43:02Z")
[bugs://84092](https://www.remobjects.com/portal/bugs/?id=84092) got closed with status fixed.
---
### Author:  [@ormente](https://talk.remobjects.com/u/ormente)
#### Post date: [May 13, 2020, 10:55pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/16 "2020-05-13T22:55:08Z")
Back to the game after a pause, and purchasing a (personal) licence. The numbers are now good on Windows, but the last attempt to display makes the program block (using 10.0.0.2509).
```
func main() {
start := time.Now()
time.Sleep(200 * time.Millisecond)
t := time.Now()
// OK
fmt.Printf("Elapsed: %d mcs.\n", t.Sub(start).Microseconds())
fmt.Printf("Elapsed: %d ms.\n", t.Sub(start).Milliseconds())
// Possible hint at the bug cause
fmt.Printf("%T \n", t.Sub(start).Milliseconds()) // -> go.builtin.int64
fmt.Printf("%T \n", t.Sub(start).Seconds()) // -> RemObjects.Elements.System.Double
// Program hangs !
fmt.Printf("Elapsed: %f ms.\n", 1000*t.Sub(start).Seconds())
}
```
---
### Author:  [@ormente](https://talk.remobjects.com/u/ormente)
#### Post date: [May 25, 2020, 9:55pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/17 "2020-05-25T21:55:58Z")
Tested it with 2517 and the behavior is the same.
---
### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [May 25, 2020, 10:03pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/18 "2020-05-25T22:03:55Z")
Renaud,
> [@ormente](#):
>
> ested it with 2517 and the behavior is the same.
My apologies; it seems I missed rour last reply, and that issue was never logged. doing now.
---
### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [May 25, 2020, 10:05pm UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/19 "2020-05-25T22:05:21Z")
Thanks, logged as [bugs://84358](https://www.remobjects.com/portal/bugs/?id=84358)
---
### Author:  [@RemObjectsSoftware](https://talk.remobjects.com/u/RemObjectsSoftware)
#### Post date: [November 17, 2021, 9:08am UTC](https://talk.remobjects.com/t/bug-in-os-args/21639/20 "2021-11-17T09:08:36Z")
[bugs://E24152](https://www.remobjects.com/portal/bugs/?id=E24152) was closed as fixed.