[Info-vax] Significance of 2020 / 2021 date

[Arne Vajhøj]

On 1/7/2021 4:00 PM, issinoho wrote:
> On Thursday, 7 January 2021 at 20:48:52 UTC, abrsvc wrote:
>> On Thursday, 7 January 2021 at 15:38:19 UTC-5, 1tim.... at gmail.com wrote:
>>> On Thursday, January 7, 2021 at 11:52:35 AM UTC-7, Stephen Hoffman wrote:
>>>> On 2021-01-07 18:40:56 +0000, Hein RMS van den Heuvel said:
>>>>
>>>>> On Thursday, January 7, 2021 at 12:33:57 PM UTC-5, Andy Burns wrote:
>>>>>> issinoho wrote:
>>>>>>
>>>>>>> We have some old 90s VAX C code which rejects any dates after the year 2020
>>>>>> Does this use 2 digit years or 4 digit?
>>>>>>
>> Without seeing any of the code, we can speculate till the cows come
>> home and never uncover the real problem. I too have seen all kinds
>> of trickery to get around 2 digit year storage and the change from
>> 19 to 20. Given that the century remained the same here, I suspect
>> a different issue. >
> OK, so the very fact none of you are jumping down my throat with an obvious reason is significant.
> 
> For the curious here is the code in question...
> 
> if (atoi (date_string + 5) > 2020)
> ....
> 
> where date_string is a char array

Well - that code seems to intend to change the flow
when going from 2020 to 2021.

So maybe not so surprising that behavior changed.

And next step must be to look at the code that now
get executed which did not get executed before.

Arne