The following code example is taken from the book
C++ Templates - The Complete Guide
by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002
© Copyright David Vandevoorde and Nicolai M. Josuttis 2002
#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>
inline
void foo (T1 const & p1, T2 const & p2)
{
foo_core<T1,T2>(p1,p2);
}
int main()
{
MyClass1 mc1;
MyClass2 mc2;
foo(mc1,mc2); // same as foo_core<MyClass1,MyClass2>(mc1,mc2)
}