Function isNonInvertibleOperation

lib/vf_settokenvalue.cpp:159–162

does the operation cause a loss of information?

    // does the operation cause a loss of information?
    static bool isNonInvertibleOperation(const Token* tok)
    {
        return !Token::Match(tok, "+|-");
    }

    static bool isComputableValue(const Token* parent, const Value& value)
    {