The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference, 2nd Edition
by Nicolai M. Josuttis, Addison Wesley Longman, 2012
Copyright © 2012 by Pearson Education, Inc. and Nicolai M. Josuttis
#include <set>
#include <vector>
#include <algorithm>
#include <iterator>
#include <iostream>
#include "print.hpp"
int square (int value)
{
return value*value;
}
int main()
{
std::set<int> coll1;
std::vector<int> coll2;
// insert elements from 1 to 9 into coll1
for (int i=1; i<=9; ++i) {
coll1.insert(i);
}
PRINT_ELEMENTS(coll1,"initialized: ");
// transform each element from coll1 to coll2
// - square transformed values
std::transform (coll1.cbegin(),coll1.cend(), // source
std::back_inserter(coll2), // destination
square); // operation
PRINT_ELEMENTS(coll2,"squared: ");
}