?? exprscalar.hpp
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/* The following code example is taken from the book * "C++ Templates - The Complete Guide" * by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002 * * (C) Copyright David Vandevoorde and Nicolai M. Josuttis 2002. * Permission to copy, use, modify, sell and distribute this software * is granted provided this copyright notice appears in all copies. * This software is provided "as is" without express or implied * warranty, and with no claim as to its suitability for any purpose. */// class for objects that represent scalarstemplate <typename T>class A_Scalar { private: T const& s; // value of the scalar public: // constructor initializes value A_Scalar (T const& v) : s(v) { } // for index operations the scalar is the value of each element T operator[] (size_t) const { return s; } // scalars have zero as size size_t size() const { return 0; };};
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