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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.
#include "rparam.hpp"
#include "rparamcls.hpp"
// function that allows parameter passing by value or by reference
template <typename T1, typename T2>
void foo_core (typename RParam<T1>::Type p1,
typename RParam<T2>::Type p2)
// wrapper to avoid explicit template parameter passing
template <typename T1, typename T2>
void foo (T1 const & p1, T2 const & p2)
int main()
MyClass1 mc1;
MyClass2 mc2;
foo(mc1,mc2); // same as foo_core<MyClass1,MyClass2>(mc1,mc2)