in source/shared/cpp/ObjectModel/jsoncpp.cpp [3379:3410]
bool Value::isConvertibleTo(ValueType other) const {
switch (other) {
case nullValue:
return (isNumeric() && asDouble() == 0.0) ||
(type_ == booleanValue && value_.bool_ == false) ||
(type_ == stringValue && asString().empty()) ||
(type_ == arrayValue && value_.map_->size() == 0) ||
(type_ == objectValue && value_.map_->size() == 0) ||
type_ == nullValue;
case intValue:
return isInt() ||
(type_ == realValue && InRange(value_.real_, minInt, maxInt)) ||
type_ == booleanValue || type_ == nullValue;
case uintValue:
return isUInt() ||
(type_ == realValue && InRange(value_.real_, 0, maxUInt)) ||
type_ == booleanValue || type_ == nullValue;
case realValue:
return isNumeric() || type_ == booleanValue || type_ == nullValue;
case booleanValue:
return isNumeric() || type_ == booleanValue || type_ == nullValue;
case stringValue:
return isNumeric() || type_ == booleanValue || type_ == stringValue ||
type_ == nullValue;
case arrayValue:
return type_ == arrayValue || type_ == nullValue;
case objectValue:
return type_ == objectValue || type_ == nullValue;
}
JSON_ASSERT_UNREACHABLE;
return false;
}