chapter4-4.cpp

C++STL程序员开发指南

//文件名：CHAPTER4-4.cpp
#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>
using namespace std;
template <class ForwardIterator, class T>
void iota_n (ForwardIterator first, int n, T value)
{  for (int i = 0; i < n; i++) *first++ = value++;}
main (int argc, char *argv[])
{
  int n = 2; // argument checking removed for clarity
  vector<int> v;
  v.reserve(3);
  iota_n (v.begin(), n, 100);
  random_shuffle (v.begin(), v.end());  // shuffle
  copy (v.begin(), v.end(), ostream_iterator<int> (cout, "\n")); // print
}