Method find

ThirdParty/jsoncpp/vtkjsoncpp/jsoncpp.cpp:3520–3532

bool Value::isValidIndex(ArrayIndex index) const { return index < size(); }

Value const* Value::find(char const* begin, char const* end) const {
  JSON_ASSERT_MESSAGE(type() == nullValue || type() == objectValue,
                      "in Json::Value::find(begin, end): requires "
                      "objectValue or nullValue");
  if (type() == nullValue)
    return nullptr;
  CZString actualKey(begin, static_cast<unsigned>(end - begin),
                     CZString::noDuplication);
  ObjectValues::const_iterator it = value_.map_->find(actualKey);
  if (it == value_.map_->end())
    return nullptr;
  return &(*it).second;
}
Value const* Value::find(const String& key) const {
  return find(key.data(), key.data() + key.length());
}