c++jsonjsoncpp

jsoncpp no operator matches these operands ">>"

My C++ program below is supposed to read a json file called english.json and display the "title" information.

#include <iostream>
#include <fstream>
#include <json/value.h>

using namespace std;

int main()
{
    Json::Value language;
    ifstream language_file("english.json", std::ifstream::binary);
    language_file >> language;

    cout << language["title"] << endl;

    return 0;
}

But when I run the program, I get this error : E0349 No operator ">>" matches these operands

I've tried using other functions in the jsoncpp library but I'm getting more errors and this method seems to be the simplest and most effective.

Solution

  • <json/value.h> doesn't include the full implementation of JsonCpp, you need to include <json/json.h> instead.

    operator >> is defined in the json/reader.h header