PracticeDev/study_cpp/cpp_primer_source_code/Chapter 16/copyit.cpp

31 lines
919 B
C++

// copyit.cpp -- copy() and iterators
#include <iostream>
#include <iterator>
#include <vector>
int main()
{
using namespace std;
int casts[10] = {6, 7, 2, 9 ,4 , 11, 8, 7, 10, 5};
vector<int> dice(10);
// copy from array to vector
copy(casts, casts + 10, dice.begin());
cout << "Let the dice be cast!\n";
// create an ostream iterator
ostream_iterator<int, char> out_iter(cout, " ");
// copy from vector to output
copy(dice.begin(), dice.end(), out_iter);
cout << endl;
cout <<"Implicit use of reverse iterator.\n";
copy(dice.rbegin(), dice.rend(), out_iter);
cout << endl;
cout <<"Explicit use of reverse iterator.\n";
// vector<int>::reverse_iterator ri; // use if auto doesn't work
for (auto ri = dice.rbegin(); ri != dice.rend(); ++ri)
cout << *ri << ' ';
cout << endl;
// cin.get();
return 0;
}