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&, _b, _c> t1(vec, i, d);
> tuple<construct, _a&, _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