Re: policy around 'wontfix' bug tag

[Lucas Castro <lucas@gnuabordo.com.br>]

Em 06-02-2018 10:38, Vincent Lefevre escreveu:
> On 2018-02-06 13:48:19 +0100, Vincent Lefevre wrote:
> > This is completely crazy:
> >
> > zira% date +%Y-%m-%d -d '2003-09-01 1 day ago + 1 month'
> > 2003-09-30
> > zira% date +%Y-%m-%d -d '2003-09-01 1 day ago'
> > 2003-08-31
> > zira% date +%Y-%m-%d -d '2003-08-31 + 1 month'
> > 2003-10-01
> >
> > So, while '2003-09-01 1 day ago' gives 2003-08-31, the following
> > are not equivalent:
> >    * '2003-09-01 1 day ago + 1 month'
> >    * '2003-08-31 + 1 month'
> >
> > Where is the logic behind that?
> Other ones:
>
> zira% date +%Y-%m-%d -d '2003-02-01 - 1 month'
> 2003-01-01
> zira% date +%Y-%m-%d -d '2003-02-01 - 31 days'
> 2003-01-01
> zira% date +%Y-%m-%d -d '2003-02-01 - 31 days + 1 month'
> 2003-01-29
I guess first step done is the sum and then, subtract 31 days.
So, as the fev is a month just with 28 days, end up at 2003-01-29.
> zira% date +%Y-%m-%d -d '2003-02-01 - 1 month + 1 month'
> 2003-02-01
--
Lucas Castro