Mastering C++ Programming
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Commonly used vector APIs

The following table shows some commonly used vector APIs:

 

It would be really fun and convenient to read and print to/from the vector using istream_iterator and ostream_iterator. The following code demonstrates the use of a vector:

#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>
using namespace std;

int main () {
vector<int> v;

cout << "\nType empty string to end the input once you are done feeding the vector" << endl;
cout << "\nEnter some numbers to feed the vector ..." << endl;


istream_iterator<int> start_input(cin);
istream_iterator<int> end_input;

copy ( start_input, end_input, back_inserter( v ) );


cout << "\nPrint the vector ..." << endl;
copy ( v.begin(), v.end(), ostream_iterator<int>(cout, "\t") );
cout << endl;


return 0;
}

Note that the output of the program is skipped, as the output depends on the input entered by you. Feel free to try the instructions on the command line.