Error passing rapidjson::Value type to another function

Question

I needed to pass a variable with rapidjson::Value type to another function with the following code:

#include "filereadstream.h"
#include "stringbuffer.h"
#include "rapidjson.h"
#include "document.h"
#include <iostream>
#include <fstream>
#include <string>

using namespace rapidjson;
using namespace std;

static void processJsonValue(Value jsonValue) {

    if (jsonValue.IsArray() && !jsonValue.Empty()) {

        //jsonValue is valid
        //json value processing procedure below...

    }

}


void main()
{

    char* chartFile = "C:\\Users\\DrBlindriver\\Documents\\test.json";
    ifstream in(chartFile);
    //attempt to open json file
    if (!in.is_open()) {
        cout << "Failed to access json file!\n";
        return;
    }

    const string jsonContent((istreambuf_iterator<char>(in)), istreambuf_iterator<char>());
    in.close();

    Document jsonFile;
    //read json and check for error
    if ((jsonFile.Parse(jsonContent.c_str()).HasParseError()) || !(jsonFile.HasMember("testMember"))) {
        cout << "Invalid json file!\n";
        return;
    }

    Value testMember;
    //attempt to pass testMember value to processJsonValue 
    testMember = jsonFile["testMember"];

    processJsonValue(testMember);

}

when I encountered the error E0330:

"rapidjson::GenericValue<Encoding, Allocator>::GenericValue(const rapidjson::GenericValue<Encoding, Allocator> &rhs) [with Encoding=rapidjson::UTF8, Allocator=rapidjson::MemoryPoolAllocatorrapidjson::CrtAllocator]" (declared at line 574 of "C:\Users\DrBlindriver\source\repos\RapidJsonTest\RapidJsonTest\json\document.h") is inaccessible

at

processJsonValue(testMember);

I never encountered such error before and have been seeking a solution for a long time on the Internet, But no use. Please help or give some ideas how I can solve this problem.

Answer 1

The error says

rapidjson::GenericValue<Encoding, Allocator>::GenericValue(const
rapidjson::GenericValue<Encoding, Allocator> &rhs) (...) is inaccessible

That looks like a copy constructor to me. If the error is thrown at processJsonValue(testMember), try making your processJsonValue function take parameters by reference:

static void processJsonValue(Value& jsonValue) {
   // code here
}