c++ 模板学习笔记：理解类模板的特化与偏特化（权哥）

/*理解类模板的特化、偏特化*/
#include <iostream>
#include <typeinfo>
#include <string>
using namespace std;

template <typename T>
class Type{
public:
static string name(){return typeid(T).name();}
};
/*特化：特定某个类型*/
template <>
class Type<int>{
public:
static string name(){return "int";}
};
template <>
class Type<char>{
public:
static string name(){return "char";}
};
template <>
class Type<double>{
public:
static string name(){return "double";}
};
/*偏特化:指针类型*/
template<typename T>
class Type<T*>{
public:
static string name(){return Type<T>::name()+" pointer";}
};

int main()
{
Type<int> ti;
Type<int*>tip;
Type<int**>tipp;
Type<char> tc;
Type<char*>tcp;
Type<char**>tcpp;
Type<double> td;
Type<double*>tdp;
Type<double**>tdpp;
cout << ti.name() << endl;
cout << tip.name() << endl;
cout << tipp.name() << endl;
cout << tc.name() << endl;
cout << tcp.name() << endl;
cout << tcpp.name() << endl;
cout << td.name() << endl;
cout << tdp.name() << endl;
cout << tdpp.name() << endl;
return 0;
}
/*输出：
int
int pointer
int pointer pointer
char
char pointer
char pointer pointer
double
double pointer
double pointer pointer
*/