join.cpp on iterator though vector and map

#pragma once
#include "JSONWrapper.hpp"
#include <functional>

#include <string>

using namespace std;

string join(JSONObject::const_iterator first, JSONObject::const_iterator last, string delimitor,
 std::function<string(const JSONObject::value_type&)> func)
{
 string ret = "";
 for (;first!= last; first++)
 {
  ret += func(*first) + delimitor;
 }
 return ret;
}

string join(JSONArray::const_iterator first, JSONArray::const_iterator last, string delimitor,
 std::function<string(const JSONValue&)> func)
{
 string ret = "";
 for (;first!= last; first++)
 {
  ret += func(*first) + delimitor;
 }
 return ret;
}