I saw in the doxygen comment that the behaviour is the expected one:
%j milliseconds (1-3 digits, optionally leading '.')
%J milliseconds (1-3 digits, with leading '.')
Maybe it would be an idea to introduce a new letter like:
%K milliseconds (exactly 3 digits, with leading '.')
Am 30.01.2014 11:48, schrieb Andreas Welchlin:
> Hi All,
>
> I am using the DateTime class in the cxxtools lib.
>
> In order to get a string format including milliseconds I called
> DateTime::toString() like:
>
> datetime.toString("%Y%m%d_%H%M%S%j");
>
> I expected the milliseconds to have 3 digits in any case but the
> behaviour is different:
>
> When
> milliseconds = 345 then %j adds ".345"
>
> milliseconds = 340 then %j adds ".34"
>
> and when milliseconds is 0 then it adds nothing.
>
> Looking into the code:
> --------------------------------------------------------------------------
> case 'j': if (mseconds != 0)
> {
> str += '.';
> str += (mseconds / 100 + '0');
> if (mseconds % 100 != 0)
> {
> str += (mseconds / 10 % 10 + '0');
> if (mseconds % 10 != 0)
> str += (mseconds % 10 + '0');
> }
> }
> break;
>
> case 'J': str += '.';
> str += (mseconds / 100 + '0');
> if (mseconds % 100 != 0)
> {
> str += (mseconds / 10 % 10 + '0');
> if (mseconds % 10 != 0)
> str += (mseconds % 10 + '0');
> }
> break;
> --------------------------------------------------------------------------
>
> The only difference between %J and %j seems to be that %J does at least
> add '.0'.
> So for me it would be better to use %J. But anyway I do not see 3 digits.
>
> I would like to suggest to change the code to something like:
>
> case 'J':
> str += '.';
> str += (mseconds / 100 + '0');
> str += (mseconds / 10 % 10 + '0');
> str += (mseconds % 10 + '0');
> break;
>
> Then there are always three digits at the end.
>
> Any suggestions?
>
> Regards,
> Andreas
>
>
>
>
>
>
>
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