C++ source code to parse json datas by picojson.

PicoJson.cpp

/*
 * C++ source code to parse json datas by picojson.
 */
#include <string>
#include <sstream>
#include <fstream>
#include <iostream>
#include "picojson.h"

using namespace std;
using namespace picojson;

int main() {
    // Declaration
    stringstream ss;
    ifstream     f;
    unsigned int i;

    // Read Json file
    f.open("test.json", ios::binary);
    if (!f.is_open()) return 1;
    ss << f.rdbuf();
    f.close();

    // Parse Json data
    value v;
    ss >> v;
    string err = get_last_error();
    if(!err.empty()) {
        cerr << err << endl;
        return -1;
    }
    object& o = v.get<object>()["Test1"].get<object>();
    cout << "TestInt: " << o["TestInt"].get<double>() << endl;
    cout << "TestDbl: " << o["TestDbl"].get<double>() << endl;
    cout << "TestStr: " << o["TestStr"].get<string>() << endl;
    cout << "TestBln: " << o["TestBln"].get<bool>()   << endl;
    array& aAry = o["TestAry"].get<array>();
    cout << "TestAry:" << endl;
    for (i = 0; i < aAry.size(); i++)
        cout << "\t" << aAry[i].get<string>() << endl;
}