STL模板函数的继承

yumiao — Tue, 31 May 2011 08:59:00 GMT

1#include <stdio.h>
2#include <stdlib.h>
3
4template<typename Item>
5class HIFState
6{
7public:
8    virtual ~HIFState()
9    {
10    }
11
12public:
13    Item m_evaValue;//目标函数值
14};
15
16template<typename State>
17class HIFComparator
18{
19public:
20    virtual bool Compare(const State& item1, const State& item2) = 0;
21};
22
23template<typename Item>
24class HIFStateComparator : public HIFComparator<HIFState<Item>*>
25{
26public:
27    typedef typename HIFState<Item>* State;
28    virtual bool Compare(const State& item1, const State& item2)
29    {
30        printf("HIFStateComparator->Compare\n");
31        return (item1->m_evaValue < item2->m_evaValue);
32    }
33};
34
35void main()
36{
37    HIFState<double>* pState1 = new HIFState<double>;
38    HIFState<double>* pState2 = new HIFState<double>;
39
40    HIFComparator<HIFState<double>*>* pStateComparator = new HIFStateComparator<double>;
41    pStateComparator->Compare(pState1, pState2);
42    //
43    delete pStateComparator;
44    system("pause");
45}

yumiao 2011-05-31 16:59 发表评论

C++博客-海阔凭鱼跃-文章分类-STL

STL模板函数的继承