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 <list>
#include <algorithm>
#include "print.hpp"
using namespace std;
class IntSequence {
private:
int value;
public:
// constructor
IntSequence (int initialValue)
: value(initialValue) {
}
// ``function call''
int operator() () {
return value++;
}
};
int main()
{
list<int> coll;
// insert values from 1 to 9
generate_n (back_inserter(coll), // start
9, // number of elements
IntSequence(1)); // generates values
PRINT_ELEMENTS(coll);
// replace second to last element but one with values starting at 42
generate (++coll.begin(), // start
--coll.end(), // end
IntSequence(42)); // generates values
PRINT_ELEMENTS(coll);
}