[erlang-questions] add a time interval to a timestamp

[Mazen Harake]

On 15 March 2011 15:32, Attila Rajmund Nohl <attila.r.nohl@REDACTED> wrote:
> Hello!
>
> Unfortunately the calendar:* functions crash on wrong input:

I would say that this is a _good_ thing. More functions in standard
applications should crash when not used properly.