1.模板类中有成员是模板
#include <iostream>#include <typeinfo>using namespace std;
template<class T>
class Outer
{public:
template<class R>
class Inner
{
public:
void f();
};
};template<class T>
template <class R>
void Outer<T>::Inner<R>::f()
{ cout << "Outer == " << typeid(T).name() << endl;
cout << "Inner == " << typeid(R).name() << endl;
cout << "Full Inner == " << typeid(*this).name() << endl;
}int main()
{ Outer<int>::Inner<bool> inner;
inner.f();
} /**////:~
//output://Outer == int//Inner == bool//Full Inner == class Outer<int>::Inner<bool>//Press any key to continue . . . |
2、模板类参数是模板
// A print function for standard C++ sequences#include <iostream>#include <list>#include <memory>#include <vector>#include <deque>using namespace std;
template<class T, template<class U, class = allocator<U> >
class Seq>
void printSeq(Seq<T>& seq)
{ for (typename Seq<T>::iterator b = seq.begin();
b != seq.end();)
cout << *b++ << endl;
}int main()
{ // Process a vector
vector<int> v;
v.push_back(1);
v.push_back(2);
printSeq(v);
// Process a list
list<int> lst;
lst.push_back(3);
lst.push_back(4);
printSeq(lst);
// Process a deque
deque<int> d;
d.push_back(5);
d.push_back(6);
printSeq(d);
} /**////:~
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注意：typename 通知编译器被限定的标识符应该为类型，不同与typedef 是定义新的类型。
本文转自Work Hard Work Smart博客园博客，原文链接：http://www.cnblogs.com/linlf03/archive/2011/11/21/2257148.html，如需转载请自行联系原作者