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copyit.cpp

来源: String 类和标准模板库

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原始代码预览

// 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; 
}
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