// vim: set sts=8 ts=2 sw=2 tw=99 et:
//
// Copyright (C) 2013, David Anderson and AlliedModders LLC
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// 
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// modification, are permitted provided that the following conditions are met:
// 
//  * Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
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//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
//
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#ifndef _include_amtl_moveable_h_
#define _include_amtl_moveable_h_

namespace ke {

// This is a feature in C++11, but since AM projects do not have access to
// C++11 yet, we provide templates to implement move semantics. A class can
// provide a constructor for (ke::Moveable<T> t) which containers will try
// to use.
//
// When implementing a constructor that takes a Moveable, the object being
// moved should be left in a state that is safe, since its destructor will
// be called even though it has been moved.

template <typename T>
struct Moveable
{
 public:
  explicit Moveable(T &t)
   : t_(t)
  {
  }

  T *operator ->() {
    return &t_;
  }
  operator T &() {
    return t_;
  }

 private:
  T &t_;
};

template <typename T>
static inline Moveable<T>
Move(T &t)
{
  return Moveable<T>(t);
}

} // namespace ke

#endif // _include_amtl_moveable_h_