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);
}
/**/
///:~
|
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
