15.replace_if替换算法

#include<iostream>
using namespace std;

#include<vector>
#include<algorithm>

//所有区间满足条件的元素，替换成指定元素
//replace_if(iterator begin, iterator end, _Pred, newValue);

class MyReplace
{
public:
    bool operator()(int val)
    {
        return val > 5;//大于5的被替换
    }
};
void PrintVector(int val)
{
    cout << val << " ";
}
void test1501()
{
    vector<int> v;

    for (int i = 0; i < 10; i++)
    {
        v.push_back(i);
    }
    v.push_back(0);

    cout << "替换前：" << endl;
    for_each(v.begin(), v.end(), PrintVector);
    cout << endl;

    replace_if(v.begin(), v.end(), MyReplace(), 10);//迭代器遍历的数据传入仿函数中满足条件进行替换操作

    cout << "替换后：" << endl;
    for_each(v.begin(), v.end(), PrintVector);
    cout << endl;
}

int main()
{
    test1501();

    system("pause");
    return 0;
}