模仿c#Func和Action的函数指针模板

func.h 
 1 #ifndef FUNC_H
 2 #define FUNC_H
 3 //函数指针模板
 4 template<typename T>
 5 class Type{
 6   public:
 7     typedef void (*Func)(T);
 8 };
 9 template<typename T1,typename TResult>
10 class Type1{
11   public:
12     typedef TResult (*Func)(T1);
13 };
14 template<typename T1,typename T2,typename TResult>
15 class Type2{
16   public:
17     typedef TResult (*Func)(T1,T2);
18 };
19 template<typename T1,typename T2,typename T3,typename TResult>
20 class Type3{
21   public:
22     typedef TResult (*Func)(T1,T2,T3);
23 };
24 template<typename T1,typename T2,typename T3,typename T4,typename TResult>
25 class Type4{
26   public:
27     typedef TResult (*Func)(T1,T2,T3,T4);
28 };
29 template<typename T1,typename T2,typename T3,typename T4,typename T5,typename TResult>
30 class Type5{
31   public:
32     typedef TResult (*Func)(T1,T2,T3,T4,T5);
33 };
34 template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6,typename TResult>
35 class Type6{
36   public:
37     typedef TResult (*Func)(T1,T2,T3,T4,T5,T6);
38 };
39 
40 template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6,typename T7,typename TResult>
41 class Type7{
42   public:
43     typedef TResult (*Func)(T1,T2,T3,T4,T5,T6,T7);
44 };
45 
46 template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6,typename T7,typename T8,typename TResult>
47 class Type8{
48   public:
49     typedef TResult (*Func)(T1,T2,T3,T4,T5,T6,T7,T8);
50 };
51 
52 template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6,typename T7,typename T8,typename T9,typename TResult>
53 class Type9{
54   public:
55     typedef TResult (*Func)(T1,T2,T3,T4,T5,T6,T7,T8,T9);
56 };
57 
58 template<typename T1,typename T2,typename T3,typename T4,typename T5,typename T6,typename T7,typename T8,typename T9,typename T10,typename TResult>
59 class Type10{
60   public:
61     typedef TResult (*Func)(T1,T2,T3,T4,T5,T6,T7,T8,T9,T10);
62 };
63 
64 #endif
main.cpp 
 1 #include <iostream>
 2 #include "func.h"
 3 void incr (int& a)
 4 {
 5     ++a;
 6 }
 7 int add (int a)
 8 {
 9     return ++a;
10 }
11 
12 void print (int a)
13 {
14     std::cout << a << std::endl;
15 }
16 
17 void print1 (Type<int&>::Func fun,int a)
18 {
19     fun(a);
20     std::cout << a<< std::endl;
21 }
22 
23 
24 int main()
25 {
26     int x = 7;
27     Type1<int,int>::Func fun1=add;
28     int y=fun1(x);
29     Type<int>::Func fun2=print;
30     fun2(y);
31     fun2(x);
32     print1(incr,x);
33 }
posted @ 2012-11-30 13:03  xuybin  阅读(758)  评论(0)  编辑  收藏  举报