Bad array indexing is considered deadly

[Guillaume Piolat via Digitalmars-d]

On Thursday, 1 June 2017 at 09:46:09 UTC, Ola Fosheim Grøstad 
wrote:
> On Thursday, 1 June 2017 at 09:18:24 UTC, Guillaume Piolat 
> wrote:
>> Even with consumer software, you may want to crash immediately 
>> so that you actually get complaints from testers/buyers 
>> instead of having a silent, invisible bug that no one will 
>> report ever.
>
> No. You don't want to crash immediately. In fact, you want to 
> save and recover. Preferably without much work lost and without 
> the user being bothered by it.

Solved by auto-saving, _before_ the crash