AMDG On 07/18/2012 01:32 PM, Fabio Fracassi wrote:
Just spelling out some thoughts I had while reading the docu:
Even though, it would help to have this information in the docu. The way it is written now feels a bit like playing Jeopardy, you present solutions and the reader tries to figure out the problem.
additionally I do not quite gasp on what I could use this feature for. the above is much more complex as using any<...> v = std::vector<double>(10, 2.5); what am I buying with it?
The point is to allow constructors to be captured just like any other function. When the constructor is called, you don't have to know the contained types. Also, this feature has one very obvious use: the copy constructor. If we need the ability to copy an any<Concept, _a>, then Concept needs to include constructible<_a(const _a&)>.
And couldn't another syntax like any<...> v(binding_of(vec), (int)10, (double)2.5); be made to work, and be much more comfortable?
- binding_of takes an any as an argument. vec is a std::vector. - This syntax does, in fact, work if the Concept includes construcible<_a(int, double)> and if we replace vec with an any. In Christ, Steven Watanabe