foreach.cpp

Thinking in C++ 2nd edition source code which are all the cores of the book Thinking in C++ second e

//: C21:ForEach.cpp
// From Thinking in C++, 2nd Edition
// at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Use of STL for_each() algorithm
#include <iostream>
#include <vector>
#include <algorithm>
#include "Counted.h"
using namespace std;

// Simple function:
void Destroy(Counted* fp) { delete fp; }

// Function object:
template<class T>
class DeleteT {
public:
  void operator()(T* x) { delete x; }
};

// Template function:
template <class T>
void wipe(T* x) { delete x; }

int main() {
  CountedVector A("one");
  for_each(A.begin(), A.end(), Destroy);
  CountedVector B("two");
  for_each(B.begin(),B.end(),DeleteT<Counted>());
// Used to work on at least one compiler:  
//  CountedVector C("three");
//  for_each(C.begin(), C.end(), wipe<Counted>);
} ///:~