[erlang-questions] Interesting issue...

Pierre Fenoll <>
Fri Jan 25 17:23:33 CET 2013


Tried it on R15B03 on my MacBook Air (Indochina Time) and got no exception.
The issue cannot be reproduced on R15B03.

On 25 January 2013 17:10, Patrik Nyblom <> wrote:

>  Hi!
>
> This ought to be fixed already in R15B03, can you please verify that it's
> not present there? I can only reproduce it in R15B01 and prior releases.
>
> Cheers,
> /Patrik
>
>
> On 01/15/2013 05:58 PM, Bryan Hughes wrote:
>
> Hi Everyone,
>
> I already submitted this to , but figured others
> might be interested.  I found an interesting issue while traveling and
> working through Thailand.  I have been able to reproduce it on my MacBook
> Pro using R15B01, built from source.
>
> 1. Set your date to Indochina Time.
> 2. In the shell, try executing:
> calendar:local_time_to_universal_time_dst({{2012,12,3},{8,48,42}}).
>
> Here is the exception that I am getting.  Note that the date is a validate
> datetime.
>
> Eshell V5.9.1 (abort with ^G)
> 1> calendar:local_time_to_universal_time_dst({{2012,12,3},{8,48,42}}).
> ** exception error: bad argument
>      in function erlang:localtime_to_universaltime/2
>         called as
> erlang:localtime_to_universaltime({{2012,12,3},{8,48,42}},true)
>      in call from calendar:local_time_to_universal_time_dst/1
> (calendar.erl, line 282)
>
> When I set my date back to Pacific time, it works without any problem --
> you can switch it back and forth while in the shell and either get the
> exception, or the correct output.
>
> I was able to isolate it to function the bif.c function, unfortunately my
> environment is not really set up to debug the erlang runtime.
>
>     BIF_RETTYPE localtime_to_universaltime_2(BIF_ALIST_2);
>
> Cheers,
> Bryan
>
> --
>
> Bryan Hughes
> CTO and Founder / *Go Factory*
> http://www.go-factory.net
>
>
>
>
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