Re: [boost] [utility] Any interest for a macro which automatically creates default move-semantics, comparisson etc for a class

8 Nov 2013


      On 11/06/2013 06:38 PM, Viktor Sehr wrote:
...
Example usage:
class Foo {
public:
   Foo() {}
   DEFAULT_EVERYTHING(Foo,
( (int)(a) )
  ( (std::vector<int>)(b) )
( (float)(c) )
   );
};
Any interest, suggestions or ideas?
...
(vector2(member, other.member)), 
swap_functor());
   }
If we are going to specify the member variables in a funny way, it may
be worth considering a solution based on Boost.Fusion. For example,
swap() can be made like this:

class Foo {
public:
   Foo()
   {
     member.a = 0;
     member.c = 0.0;
   }

   // swap and swap_functor should be turned into a macro
public:
   void swap(Foo& other)
   {
     using namespace boost::fusion;
     for_each(zip_view< vector2 
private:
   struct swap_functor
   {
     template <typename T>
     void operator()(const boost::fusion::vector2& data) const
     {
       using namespace boost::fusion;
       boost::swap(at_c<0>(data), at_c<1>(data));
     }
   };

private:
     BOOST_FUSION_DEFINE_STRUCT_INLINE
     (member_type,
      // Member variables
      (int, a)
      (std::vector<int>, b)
      (float, c)
     )
     member_type member;
};

Re: [boost] [utility] Any interest for a macro which automatically creates default move-semantics, comparisson etc for a class

Bjorn Reese