Re: [boost] [date_time] USE_DATE_TIME_PRE_1_33_FACET_IO

From: Jeff Garland (jeff_at_[hidden])
Date: 2005-04-14 08:32:02

On Wed, 13 Apr 2005 10:35:19 +0400, Vladimir Prus wrote
> While comparing regression tests results for Boost.Build V1 and V2,
>  I noted that some date_time tests fail, and traced this to the fact 
> that V2 does not define USE_DATA_TIME_PRE_1_33_FACET_IO while 
> compiling the tests.
> 
> So, I have a couple of questions:
> 
> 1. What does the macro do? I could not find anything in the docs.

Sorry, the docs aren't complete yet.  It turns off the new I/O code which
allows for 'format-based' input/output (eg: date_facet->format("%Y/%M/%d") ).
 Just in case people are dependent on the old I/O facets they can use the
macro to switch back.  As a result we are still testing both I/O configurations...

> 2. For V2, I have as much as three choices:
> 
>    - Add this define to the same sets of tests and in V1 Jamfile

Yes -- this is the one....for now at least.

>    - Add this define to "project requirements" for the date_time/test
>      Jamfile.v2, so it will be applied to all targets
>    - Add this define to "usage requirements" for the date_time 
> library, so     that any executable files linking to date_time will 
> get this define     set.
> 
>    Which option is the best?

Jeff