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 <vector>
#include <list>
#include <stack>
#include <iostream>
#include <typeinfo>
template <typename T>
class ElementT; // primary template
template <typename T>
class ElementT<std::vector<T> > { // partial specialization
public:
typedef T Type;
};
template <typename T>
class ElementT<std::list<T> > { // partial specialization
public:
typedef T Type;
};
template <typename T>
class ElementT<std::stack<T> > { // partial specialization
public:
typedef T Type;
};
template <typename T>
void print_element_type (T const & c)
{
std::cout << "Container of "
<< typeid(typename ElementT<T>::Type).name()
<< " elements.\n";
}
int main()
{
std::stack<bool> s;
print_element_type(s);
}