Source of remove_copy1a.cpp

Structures and functions

  1: //remove_copy1a.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 "
 11:         "remove_copy() algorithm to copy\nall values except a "
 12:         "particular value from one vector of integers to another.";
 13:     cout << "\nPress Enter to continue ... ";  cin.ignore(80, '\n');

 15:     int a1[] = {1, 2, 2, 3, 4, 5, 2, 3, 6, 7, 2, 8, 3, 9, 10, 2};
 16:     vector<int> v1(a1, a1+16);

 18:     cout << "\nHere are the sixteen values in v1:\n";
 19:     for (vector<int>::size_type i=0; i<v1.size(); i++)
 20:         cout << v1.at(i) << " ";
 21:     cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');

 23:     int a2[] = {101, 102, 103, 104, 105, 106, 107, 108,
 24:                 109, 110, 111, 112, 113, 114, 115, 116};
 25:     vector<int> v2(a2, a2+16);

 27:     cout << "\nHere are the sixteen values in v2:\n";
 28:     for (vector<int>::size_type i=0; i<v2.size(); i++)
 29:         cout << v2.at(i) << " ";
 30:     cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');

 32:     cout << "\nNow we copy all values except 2 from v1 to v2, starting "
 33:         "at the 3rd value of v2.";
 34:     cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');

 36:     vector<int>::iterator p = remove_copy(v1.begin(), v1.end(),
 37:         v2.begin()+2, 2);

 39:     cout << "\nHere are the revised values in v2:\n";
 40:     for (vector<int>::size_type i=0; i<v2.size(); i++)
 41:         cout << v2.at(i) << " ";
 42:     cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');

 44:     cout << "\nThe iterator returned by the algorithm is pointing at "
 45:         "the value " << *p << ".";
 46:     cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
 47: }