Looping over an array in RapidJson and getting the object elements

问题

How do I get the value out of a ConstrValueIterator? In this case I know that the elements of the array are dictionaries (aka objects).

Code summed up:

for (rapidjson::Value::ConstValueIterator itr = rawbuttons.Begin(); itr != rawbuttons.End(); ++itr) { // Ok
    if (itr->HasMember("yes")) { // Ok
        auto somestring = itr["yes"]->GetString(); // error
    }
}

回答1:

Um. Iterators need to be dereferenced or whatever it's called.

for (rapidjson::Value::ConstValueIterator itr = rawbuttons.Begin(); itr != rawbuttons.End(); ++itr) { // Ok
    if (itr->HasMember("yes")) { // Ok
        auto somestring = (*itr)["yes"]->GetString(); // bingo
    }
}

回答2:

It should be

for (rapidjson::Value::ConstValueIterator itr = rawbuttons.Begin(); itr != rawbuttons.End(); ++itr) { 
if (itr->HasMember("yes")) { 
    auto somestring = (*itr)["yes"].GetString(); 
}}

来源：https://stackoverflow.com/questions/32303257/looping-over-an-array-in-rapidjson-and-getting-the-object-elements