Method IsInteger

library/cpp/json/writer/json_value.cpp:765–776

    }

    bool TJsonValue::IsInteger() const noexcept {
        switch (Type) {
            case JSON_INTEGER:
                return true;
            case JSON_UINTEGER:
                return (Value.UInteger <= static_cast<unsigned long long>(Max<long long>()));
            case JSON_DOUBLE:
                return ((long long)Value.Double == Value.Double);
            default:
                return false;
        }
    }

    bool TJsonValue::IsUInteger() const noexcept {
        switch (Type) {