STL

函数作为参数，相当于C++的函数指针, C#的委托

for_each函数参数:

#include <iostream>
#include <algorithm>
#include <vector>
#include "FuncParamTest.h"
#include "../../Core/ContainerUtil.h"

using namespace std;

void print(int elem)
{
    cout << elem << ' ';
}

void FuncParamTest::forEachFunc()
{
    vector<int> coll;

    for (int i = 1; i <= 9; ++i)
    {
        coll.push_back(i);
    }

    // print all elements
    for_each(coll.cbegin(), coll.cend(), print);
    cout << endl;
}

void FuncParamTest::run()
{
    forEachFunc();
}

运行结果:
1 2 3 4 5 6 7 8 9