Demonstrating input and output with iterators. - C++ STL

C++ examples for STL:iterator

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Description

Demonstrating input and output with iterators.

Demo Code

#include <iostream> 
#include <iterator> // ostream_iterator and istream_iterator 
using namespace std; 

int main() /*from   w w  w.  j av  a2 s.  c  o m*/
{ 
    cout << "Enter two integers: "; 

    // create istream_iterator for reading int values from cin 
    istream_iterator< int > inputInt( cin ); 

    int number1 = *inputInt; // read int from standard input 
    ++inputInt; // move iterator to next input value 
    int number2 = *inputInt; // read int from standard input 

    // create ostream_iterator for writing int values to cout 
    ostream_iterator< int > outputInt( cout ); 

    cout << "The sum is: "; 
    *outputInt = number1 + number2; // output result to cout 
    cout << endl; 
}

Result


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