函数指针的应用

实现从3个数中求最大值

#include <iostream>

using namespace std;

int max(int a, int b)
{
    return a>b?a:b;
}
int main()
{
    //int max(int, int);
    int (*p)(int, int) = &max;//!!!!!!
    int a, b, c, d;
    cout<<"input 3 integers:"<<endl;
    cin>>a>>b>>c;
    d = (*p)((*p)(a, b), c);//!!!!!
    cout << "maxmal is: " <<d<< endl;
    return 0;
}

结果：

input 3 integers:
22 19 82
maxmal is: 82

Process returned 0 (0x0)   execution time : 11.926 s
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