Re: [boost] [log] Boost.Log formal review closing down

Subject: Re: [boost] [log] Boost.Log formal review closing down
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2010-03-17 17:39:28

On 03/18/2010 12:33 AM, vicente.botet wrote:
>
>> On 03/17/2010 05:52 PM, Steven Watanabe wrote:
>>> AMDG
>>>
>>> vicente.botet wrote:
>>>> * Severity: I would like that any sink filters thie severity the
>>>> log_record is not added at all. Could this optimization be taken in
>>>> account. For example if severity must be GT error to be logged, the
>>>> following will not evaluate the ineficient_function().
>>>> BOOST_LOG_SEV(slg, normal)<<  ineficient_function();
>>>
>>> I'm pretty sure that if no sink is going to accept the
>>> record, then inefficient_function will indeed not
>>> be called.
>>
>> I confirm.
>
> Yes I see, but the log record will be build with all its attributes which will take more time than just checking for severity.

No, it won't. Only the attributes involved in filtering will be used.