picojsonのサンプル

coordinates

10 20
60 20
90 45

list2json.cpp

// # picojsonでシリアライズ
// $ ./executable.out < coordinates
// [{"x":10,"y":20},{"x":60,"y":20},{"x":90,"y":45}]

#include <iostream>
#include "../picojson.h"

using namespace std;
typedef pair<int, int> point;

int main(void)
{
  int x, y;
  picojson::array list;
  while (cin >> x >> y)
  {
    picojson::object value;
    value.insert(make_pair("x", picojson::value((double)x)));
    value.insert(make_pair("y", picojson::value((double)y)));
    list.push_back(picojson::value(value));
  }
  cout << picojson::value(list);
}