ex3_16.cpp

///
///@Author  PEZY
///@Date    Aug. 2014
///@Brief 
/// print the size and contents of the vectors from exercise 3.13.
/// Check whether your answers to that exercise were correct. 
/// If not, restudy § 3.3.1 (p. 97) until you understand why you were wrong.
///

#include <iostream>
#include <vector>
#include <string>

using std::vector;
using std::string;
using std::cout;
using std::endl;

int main()
{
  vector<int> v1;
  cout << "{\n \"v1\":{\"size\":\"" << v1.size() << "\",\"value\":[";
  for (auto i : v1)
    cout << i << ",";
  if (!v1.empty()) cout << "\b";
  cout << "]}" << endl;

  vector<int> v2(10);
  cout << " \"v2\":{\"size\":\"" << v2.size() << "\",\"value\":[";
  for (auto i : v2)
    cout << i << ",";
  if (!v2.empty()) cout << "\b";
  cout << "]}" << endl; 

  vector<int> v3(10, 42);
  cout << " \"v3\":{\"size\":\"" << v3.size() << "\",\"value\":[";
  for (auto i : v3)
    cout << i << ",";
  if (!v3.empty()) cout << "\b";
  cout << "]}" << endl; 

  vector<int> v4{10};
  cout << " \"v4\":{\"size\":\"" << v4.size() << "\",\"value\":[";
  for (auto i : v4)
    cout << i << ",";
  if (!v4.empty()) cout << "\b";
  cout << "]}" << endl;
  
  vector<int> v5{10, 42};
  cout << " \"v5\":{\"size\":\"" << v5.size() << "\",\"value\":[";
  for (auto i : v5)
    cout << i << ",";
  if (!v5.empty()) cout << "\b";
  cout << "]}" << endl;

  vector<string> v6{10};
  cout << " \"v6\":{\"size\":\"" << v6.size() << "\",\"value\":[";
  for (auto i : v6)
    if (i.empty()) cout << "(null)" << ",";
    else cout << i << ",";
  if (!v6.empty()) cout << "\b";
  cout << "]}" << endl;

  vector<string> v7{10, "hi"};
  cout << " \"v7\":{\"size\":\"" << v7.size() << "\",\"value\":[";
  for (auto i : v7)
    if (i.empty()) cout << "(null)" << ",";
    else cout << i << ",";
  if (!v7.empty()) cout << "\b";
  cout << "]}\n}" << endl;

  return 0;
}

///
///@Output(JSON-like format)
///{
/// "v1":{"size":"0","value":[]}
/// "v2":{"size":"10","value":[0,0,0,0,0,0,0,0,0,0]}
/// "v3":{"size":"10","value":[42,42,42,42,42,42,42,42,42,42]}
/// "v4":{"size":"1","value":[10]}
/// "v5":{"size":"2","value":[10,42]}
/// "v6":{"size":"10","value":[(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)]}
/// "v7":{"size":"10","value":[hi,hi,hi,hi,hi,hi,hi,hi,hi,hi]}
///}
///