Материал из C\C++ эксперт
Function object that prints the passed argument
/* The following code example is taken from the book
* "The C++ Standard Library - A Tutorial and Reference"
* by Nicolai M. Josuttis, Addison-Wesley, 1999
*
* (C) Copyright Nicolai M. Josuttis 1999.
* Permission to copy, use, modify, sell and distribute this software
* is granted provided this copyright notice appears in all copies.
* This software is provided "as is" without express or implied
* warranty, and with no claim as to its suitability for any purpose.
*/
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
// simple function object that prints the passed argument
class PrintInt {
public:
void operator() (int elem) const {
cout << elem << " ";
}
};
int main()
{
vector<int> coll;
// insert elements from 1 to 9
for (int i=1; i<=9; ++i) {
coll.push_back(i);
}
// print all elements
for_each (coll.begin(), coll.end(), // range
PrintInt()); // operation
cout << endl;
}
/*
1 2 3 4 5 6 7 8 9
*/
