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

[Loris Fichera]

On 03/15/2011 03:32 PM, Attila Rajmund Nohl wrote:
> Hello!
> 
> Unfortunately the calendar:* functions crash on wrong input:
> 
> 1> calendar:datetime_to_gregorian_seconds({{2011,2,30},{1,2,3}}).
> ** exception error: no true branch found when evaluating an if expression
>      in function  calendar:date_to_gregorian_days/3
>      in call from calendar:datetime_to_gregorian_seconds/1
> 
> So if the input cannot be trusted, there's still some validation to be done.

Ok.
Actually, in my case the input is generated via the erlang:localtime()
function, so I'm sure about its validity.

Loris