/* 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. */// primary template: in general T is no fundamental typetemplate <typename T>class IsFundaT {  public:    enum { Yes = 0, No = 1};};// macro to specialize for fundamental types#define MK_FUNDA_TYPE(T)               \    template<> class IsFundaT<T> {     \      public:                          \        enum { Yes = 1, No = 0 };      \    };MK_FUNDA_TYPE(void)MK_FUNDA_TYPE(bool)MK_FUNDA_TYPE(char)MK_FUNDA_TYPE(signed char)MK_FUNDA_TYPE(unsigned char)MK_FUNDA_TYPE(wchar_t)MK_FUNDA_TYPE(signed short)MK_FUNDA_TYPE(unsigned short)MK_FUNDA_TYPE(signed int)MK_FUNDA_TYPE(unsigned int)MK_FUNDA_TYPE(signed long)MK_FUNDA_TYPE(unsigned long)#if LONGLONG_EXISTS  MK_FUNDA_TYPE(signed long long)  MK_FUNDA_TYPE(unsigned long long)#endif  // LONGLONG_EXISTSMK_FUNDA_TYPE(float)MK_FUNDA_TYPE(double)MK_FUNDA_TYPE(long double)#undef MK_FUNDA_TYPE