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

Subject: Re: [boost] [TypeErasure] Forward constructors and binded types
From: Vicente Botet (vicente.botet_at_[hidden])
Date: 2012-07-18 13:47:18

Steven Watanabe-4 wrote
> 
> AMDG
> 
> On 07/18/2012 10:27 AM, Vicente Botet wrote:
>> 
>>>>>>
>>>>>>> On 07/18/12 01:29, Vicente J. Botet Escriba wrote:
>>>>>>>> <snip>
>>>>>>>>
>>>>>>>>     std::vector<double> vec;
>>>>>>>>     int i = 10;
>>>>>>>>     double d = 2.5;
>>>>>>>>     tuple&lt;construct, _a&amp;, _b, _c&gt; t(vec, i, d);
>>>>>>>>     any&lt;construct, _a&gt; v(get<1>(t), get<2>(t));
>>>>>>>>
>>>>
>>>> <snip>
>> 
>> Please, could you point me to the any constructor used in 
>> 
>>  any&lt;construct, _a&gt; v(get<1>(t), get<2>(t));
>> 
> 
> Do you mean:
> 
> http://steven_watanabe.users.sourceforge.net/type_erasure/libs/type_erasure/doc/html/boost/type_erasure/any.html#id2370327-bb
> 
> 

Yes, i guess.

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?

Vicente
Vicente

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