insertion_iterator.cpp

来自「C++ sample code, for the book: C++ blac」· C++ 代码 · 共 28 行

#include <iostream>
#include <string>
#include <iterator>
#include <vector>
using namespace std;

int main()
{
    string string1[4] = {"This", "is", "a", "test"};
    string string2[2] = {"not", "really"};
    string string3[3] = {"yes", "it", "is"};

    vector<string> text(4);
    copy(string1, string1 + 4, text.begin());
    ostream_iterator<string, char> out(cout, " ");
    copy (text.begin(), text.end(), out);
    cout << endl;

    copy(string2, string1, insert_iterator<vector<string> >(text, text.begin() + 2));
    copy (text.begin(), text.end(), out);
    cout << endl;

    copy(string3, string2, back_insert_iterator<vector<string> >(text));
    copy (text.begin(), text.end(), out);
    cout << endl;
   
    return 0;
}