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Re: policy around 'wontfix' bug tag




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
zira% date +%Y-%m-%d -d '2003-02-01 - 1 month + 1 month'
2003-02-01

-- 
Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <https://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)