Function basics_wjson_example1

examples/src/basics_wexamples.cpp:12–133

using namespace jsoncons;

void basics_wjson_example1()
{
    // Construct a book object
    wjson book1;

    book1[L"category"] = L"Fiction";
    book1[L"title"] = L"A Wild Sheep Chase: A Novel";
    book1[L"author"] = L"Haruki Murakami";
    book1[L"date"] = L"2002-04-09";
    book1[L"price"] = 9.01;
    book1[L"isbn"] = L"037571894X";

    // Construct another using the member function insert_or_assign
    wjson book2;

    book2.insert_or_assign(L"category", L"History");
    book2.insert_or_assign(L"title", L"Charlie Wilson's War");
    book2.insert_or_assign(L"author", L"George Crile");
    book2.insert_or_assign(L"date", L"2007-11-06");
    book2.insert_or_assign(L"price", 10.50);
    book2.insert_or_assign(L"isbn", L"0802143415");

    // Use insert_or_assign again, but more efficiently
    wjson book3;

    // Reserve memory, to avoid reallocations
    book3.reserve(6);

    // Insert in name alphabetical order
    // Give insert_or_assign a hint where to insert the next member
    auto hint = book3.insert_or_assign(book3.object_range().begin(), L"author", L"Haruki Murakami");
    hint = book3.insert_or_assign(hint, L"category", L"Fiction");
    hint = book3.insert_or_assign(hint, L"date", L"2006-01-03");
    hint = book3.insert_or_assign(hint, L"isbn", L"1400079276");
    hint = book3.insert_or_assign(hint, L"price", 13.45);
    hint = book3.insert_or_assign(hint, L"title", L"Kafka on the Shore");

    // Construct a fourth from a string

    wjson book4 = wjson::parse(LR"(
    {
        "category" : "Fiction",
        "title" : "Pulp",
        "author" : "Charles Bukowski",
        "date" : "2004-07-08",
        "price" : 22.48,
        "isbn" : "1852272007"  
    }
    )");
    // Construct a booklist array
    wjson booklist(json_array_arg);

    // For efficiency, reserve memory, to avoid reallocations
    booklist.reserve(4);

    // For efficency, tell jsoncons to move the contents 
    // of the four book objects into the array
    booklist.push_back(std::move(book1));