example_13_8.cpp

来自「data+structures+using+c的源码」· C++ 代码 · 共 30 行

//STL functions fill and fill_n

#include <iostream>
#include <algorithm>
#include <iterator>
#include <vector>

using namespace std;

int main()
{
    vector<int> vecList(8);                           //Line 1
    ostream_iterator<int> screen(cout, " ");          //Line 2

    fill(vecList.begin(), vecList.end(), 2);          //Line 3

    cout<<"Line 4: After filling vecList with 2's: "; //Line 4
    copy(vecList.begin(), vecList.end(), screen);     //Line 5
    cout<<endl;                                       //Line 6

    fill_n(vecList.begin(), 3, 5);                    //Line 7

    cout<<"Line 8: After filling the first three "
        <<"elements with 5's: "<<endl<<"        ";    //Line 8
    copy(vecList.begin(), vecList.end(), screen);     //Line 9
    cout<<endl;                                       //Line 10

    return 0;
}