iter/assoiter.cpp

The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference
by Nicolai M. Josuttis, Addison-Wesley, 1999
© Copyright Nicolai M. Josuttis 1999


#include <iostream>
#include <set>
#include <algorithm>
using namespace std;

#include "print.hpp"

#include "assoiter.hpp"

int main()
{
    set<int> coll;   

    // create inserter for coll
    // - inconvenient way
    asso_insert_iterator<set<int> > iter(coll);

    // insert elements with the usual iterator interface
    *iter = 1;
    iter++;
    *iter = 2;
    iter++;
    *iter = 3;

    PRINT_ELEMENTS(coll);

    // create inserter for coll and insert elements
    // - convenient way
    asso_inserter(coll) = 44;
    asso_inserter(coll) = 55;

    PRINT_ELEMENTS(coll);

    // use inserter with an algorithm
    int vals[] = { 33, 67, -4, 13, 5, 2 };
    copy (vals, vals+(sizeof(vals)/sizeof(vals[0])),  // source
          asso_inserter(coll));                       // destination

    PRINT_ELEMENTS(coll);
}