Method assignIf

lib/checkcondition.cpp:92–136

}

void CheckConditionImpl::assignIf()
{
    if (!mSettings.severity.isEnabled(Severity::style) && !mSettings.isPremiumEnabled("assignIfError"))
        return;

    logChecker("CheckCondition::assignIf"); // style

    for (const Token *tok = mTokenizer->tokens(); tok; tok = tok->next()) {
        if (tok->str() != "=")
            continue;

        if (Token::Match(tok->tokAt(-2), "[;{}] %var% =")) {
            const Variable *var = tok->previous()->variable();
            if (var == nullptr)
                continue;

            char bitop = '\0';
            MathLib::bigint num = 0;

            if (Token::Match(tok->next(), "%num% [&|]")) {
                bitop = tok->strAt(2).at(0);
                num = MathLib::toBigNumber(tok->tokAt(1));
            } else {
                const Token *endToken = Token::findsimplematch(tok, ";");

                // Casting address
                if (endToken && Token::Match(endToken->tokAt(-4), "* ) & %any% ;"))
                    endToken = nullptr;

                if (endToken && Token::Match(endToken->tokAt(-2), "[&|] %num% ;")) {
                    bitop = endToken->strAt(-2).at(0);
                    num = MathLib::toBigNumber(endToken->tokAt(-1));
                }
            }

            if (bitop == '\0')
                continue;

            if (num < 0 && bitop == '|')
                continue;

            assignIfParseScope(tok, tok->tokAt(4), var->declarationId(), var->isLocal(), bitop, num);
        }
    }
}

static bool isParameterChanged(const Token *partok)
{