bounded.h

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#ifndef RTIREFLEX_BOUNDED_H
#define RTIREFLEX_BOUNDED_H

#include <vector>
#include <string>

namespace reflex {
  namespace match {

    template <class T, size_t Bound>
    struct BoundedRange;

    template <typename T, size_t Bound>
    class Bounded
    {
      T * ptr;

    public:
      Bounded() : ptr(0) {}

      explicit Bounded(T & t)
        : ptr(&t)
      {}

      Bounded(const Bounded & b)
        : ptr(b.ptr)
      {}

      operator T & () const
      {
        if (ptr)
          return *ptr;
        else
          throw std::runtime_error("Bounded<T>: Null pointer");
      }

      Bounded & operator = (T &t)
      {
        ptr = &t;
        return *this;
      }
    };

    template <class Iter, size_t Bound>
    class BoundedViewIterator : public Iter
    {
    public:
      BoundedViewIterator()
        : Iter()
      {}

      explicit BoundedViewIterator(Iter i)
        : Iter(i)
      {}

      BoundedViewIterator(const BoundedViewIterator & bvi)
        : Iter(bvi)
      {}
    };

    template <size_t Bound, class Iter>
    BoundedViewIterator<Iter, Bound> make_bounded_view_iterator(Iter iter)
    {
      return BoundedViewIterator<Iter, Bound>(iter);
    }

 } // namespace match
} // namespace reflex

#endif // RTIREFLEX_BOUNDED_H