Re: [boost] [TypeErasure] Forward constructors and binded types

Subject: Re: [boost] [TypeErasure] Forward constructors and binded types
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2012-07-18 14:23:32

AMDG

On 07/18/2012 10:47 AM, Vicente Botet wrote:
> 
> Is the following correct?
> 
>      class X {
>      public:
>        X(int, double);
>      };
> 
>     std::vector<double> vec;
>     int i = 10;   
>     double d = 2.5;
>     X x;
> 
>     tuple<construct, _a&amp;, _b, _c> t1(vec, i, d);
>     tuple<construct, _a&amp;, _b, _c> t2(x, i, d);
>     any<construct, _a> v1(get<1>(t1), get<2>(t1));
>     any<construct, _a> v2(get<1>(t2), get<2>(t2));
> 
> If yes, how v1 is bound to vec and v2 to x?
> 

It isn't.  v1 stores a std::vector<double> which
is constructed in place and is not related to vec
in any way.

v2 again hold a separate object of type X,
which is created using X(int, double).

In Christ,
Steven Watanabe