Re: [boost] Pimpl Again?

Subject: Re: [boost] Pimpl Again?
From: Vladimir Batov (Vladimir.Batov_at_[hidden])
Date: 2016-05-31 22:12:38

On 2016-06-01 11:57, Howard Hinnant wrote:
> On May 31, 2016, at 9:51 PM, Vladimir Batov
>> 
>> From efficiency point of view the above is identical to
>> 
>> Book::~Book() {}
>> 
>> or compiler writers do more magic with "=default"? I like "=default" 
>> as I feel it's cleaner language-wise. What weighty reason can I give 
>> to a beginner to prefer "=default" over {}... apart from "I am older, 
>> musclier and your boss" :-)
> 
> That’s a good question.  It doesn’t turn the destructor from
> non-trivial to trivial.  It does not change the noexcept or constexpr
> status.  The only thing it really does is say:  I want default
> semantics here.  Maintenance programmers should be more leery of
> adding superfluous stuff to your destructor.

Good point. Indeed, it's just too easy/tempting to stick something 
between the braces. :-)