Subject: Re: [boost] "peer reviewed" - Rights and responsibilities of maintainers
From: Peter Dimov (lists_at_[hidden])
Date: 2018-10-17 15:52:46
Robert Ramey wrote:
> When I looked at the test my attention was immediately drawn to the
> following:
>
> const char* impossible = "impossible";
> return impossible !=
> boost::serialization::extended_type_info_typeid<float>::get_const_instance().get_key();
>
> I memory serves me, get_key() will return the address of string of
> characters inside the the address space of the DLL. This address is
> compared to the address of "impossible" which is an address inside the
> address space of the calling mainline application. I could not and cannot
> understand what is being tested here.
It's a dummy comparison whose only purpose is to make use of the return
value to prevent the optimizer from removing the call entirely.