Method Value

src/share/jsoncpp/jsoncpp.cpp:2793–2820

! \internal Default constructor initialization must be equivalent to: * memset( this, 0, sizeof(Value) ) * This optimization is used in ValueInternalMap fast allocator. */

 * This optimization is used in ValueInternalMap fast allocator.
 */
Value::Value(ValueType vtype) {
  static char const emptyString[] = "";
  initBasic(vtype);
  switch (vtype) {
  case nullValue:
    break;
  case intValue:
  case uintValue:
    value_.int_ = 0;
    break;
  case realValue:
    value_.real_ = 0.0;
    break;
  case stringValue:
    // allocated_ == false, so this is safe.
    value_.string_ = const_cast<char*>(static_cast<char const*>(emptyString));
    break;
  case arrayValue:
  case objectValue:
    value_.map_ = new ObjectValues();
    break;
  case booleanValue:
    value_.bool_ = false;
    break;
  default:
    JSON_ASSERT_UNREACHABLE;
  }
}

Value::Value(Int value) {
  initBasic(intValue);