1: //fill1a.cpp
3: #include <iostream>
4: #include <vector>
5: #include <algorithm>
6: using namespace std;
8: int main()
9: {
10: cout << "\nThis program illustrates the use of the STL fill() "
11: "algorithm to set all\nvalues in a range of values within "
12: "a vector of integers to a given value.";
13: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
15: int a[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
16: vector<int> v(a, a+10);
17: cout << "\nHere are the contents of v:\n";
18: for (vector<int>::size_type i=0; i<v.size(); i++)
19: cout << v.at(i) << " ";
20: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
22: cout << "\nNow we set the 3rd to the 7th values of v to 20.";
23: fill(v.begin()+2, v.begin()+7, 20);
24: cout << "\nHere are the revised contents of v:\n";
25: for (vector<int>::size_type i=0; i<v.size(); i++)
26: cout << v.at(i) << " ";
27: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
29: cout << "\nNow we set all values from the 6th on to -1.";
30: fill(v.begin()+5, v.end(), -1);
31: cout << "\nHere are the revised contents of v:\n";
32: for (vector<int>::size_type i=0; i<v.size(); i++)
33: cout << v.at(i) << " ";
34: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
36: cout << "\nFinally, we initialize the entire vector to 0.";
37: fill(v.begin(), v.end(), 0);
38: cout << "\nHere are the revised contents of v:\n";
39: for (vector<int>::size_type i=0; i<v.size(); i++)
40: cout << v.at(i) << " ";
41: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
42: }