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From: Gennadiy Rozental (rogeeff_at_[hidden])
Date: 2008-03-19 02:10:51

Sean Hunt <rideau3 <at>> writes:
> I want to log to a file, with three levels of logging. So I might want
> to do the following (just an example! Not trying to mandate an interface
> or anything):
> #include <boost/log.hpp>
> using namespace boost;
> using namespace boost::log;
> log<to_file<some_template_tricks>> my_log(warning);
Why would you want compile time configuration? I agree with one of the
reviewers: in majority of the cases the only things that needs to be defined
at compile time is message/entry type and filter type.

How is it better than :

regular_log my_log( "thresholdlevel=warning;file=abc.txt" );
One thing that might be defined at compile time is level:

log_with_tag<level> my_log( "thresholdlevel=warning;file=abc.txt" );

In general logging should'n use compile time sparcely and prefer interfaces.
The only preformance critical part is filterring. Formatting and destination
optimization are pointless IMO.


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