[m-users.] Error handling in io module

[Julien Fischer]

On Sun, 12 Feb 2023, Volker Wysk wrote:

> Am Sonntag, dem 12.02.2023 um 10:48 +1100 schrieb Julien Fischer:
>> Hi,
>>
>> On Sat, 11 Feb 2023, Volker Wysk wrote:
>>
>>> I suggest to add a test to the io module, for an error being zero. Meaning
>>> no error / success. This could be a constant, say "error_success", or a
>>> predicate "error_is_success/1".
>>
>> We can add the predicate "system_error_is_success/1" which will succeed
>> when the value matches the success condition for the system_error/0 type
>> (i.e. zero for errno or Windows errors and null for the Java or C#
>> backends).
>
> That's what I have in mind.

The above predicate is present as of rotd-2023-02-13.

Julien.