dequeconversion.cpp

来自「Thinking in C++ 2nd edition source code 」· C++ 代码 · 共 29 行

//: C20:DequeConversion.cpp
// From Thinking in C++, 2nd Edition
// at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Reading into a Deque, converting to a vector
#include <deque>
#include <vector>
#include <iostream>
#include <algorithm>
#include <cstdlib>
#include "Noisy.h"
using namespace std;

int main(int argc, char* argv[]) {
  int size = 25;
  if(argc >= 2) size = atoi(argv[1]);
  deque<Noisy> d;
  ostream_iterator<Noisy> out(cout, " ");
  generate_n(back_inserter(d), size, NoisyGen());
  cout << "\n Converting to a vector(1)" << endl;
  vector<Noisy> v1(d.begin(), d.end());
  cout << "\n Converting to a vector(2)" << endl;
  vector<Noisy> v2;
  v2.reserve(d.size());
  v2.assign(d.begin(), d.end());
  cout << "\n Cleanup" << endl;
} ///:~