Re: [boost] Unnamed namespaces?

From: David Abrahams (dave_at_[hidden])
Date: 2007-06-14 17:37:09

on Thu Jun 14 2007, Eric Niebler <eric-AT-boost-consulting.com> wrote:

> David Abrahams wrote:
>> on Thu Jun 14 2007, Eric Niebler <eric-AT-boost-consulting.com> wrote:
>> 
>>>    template<typename T> struct static_const
>>>    {
>>>      static T const value;
>>>    };
>>>
>>>    template<typename T>
>>>    T const static_const<T>::value = {};
>>>
>>>    struct placeholder {};
>>>
>>>    // This is *supposed* to be statically initialized but many
>>>    // compilers do dynamic initialization for it. :-(
>>>    placeholder const &_1 = static_const<placeholder>::value;
>> 
>> I thought it was just MSVC.  Any others?
>
> Shoot, now I can't remember. How many did we test? Well, this much is 
> certain, there is at least one compiler that does dynamic initialization 
> for it. :-/
>
> I also seem to recall that there was still some question as to whether 
> the use of the reference violated the ODR, if the reference is not 
> optimized away. I don't think we ever got an answer to that question.

I don't think there ever was any question about that.  At least, I
never had a question about it.  References don't have any identity
distinct from the object they reference.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com
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