Method memsetInvalid2ndParam

lib/checkfunctions.cpp:560–606

}

void CheckFunctionsImpl::memsetInvalid2ndParam()
{
// FIXME:
//  Replace this with library configuration.
//  For instance:
//     <arg nr="2">
//       <not-float/>
//       <warn possibleIntValue=":-129,256:" severity="warning" msg="..."/>
//     </arg>

    const bool printPortability = mSettings.severity.isEnabled(Severity::portability);
    const bool printWarning = mSettings.severity.isEnabled(Severity::warning);
    if (!printWarning && !printPortability)
        return;

    logChecker("CheckFunctions::memsetInvalid2ndParam"); // warning,portability

    const SymbolDatabase *symbolDatabase = mTokenizer->getSymbolDatabase();
    for (const Scope *scope : symbolDatabase->functionScopes) {
        for (const Token* tok = scope->bodyStart->next(); tok && (tok != scope->bodyEnd); tok = tok->next()) {
            if (!Token::simpleMatch(tok, "memset ("))
                continue;

            const std::vector<const Token *> args = getArguments(tok);
            if (args.size() != 3)
                continue;

            // Second parameter is zero literal, i.e. 0.0f
            const Token * const secondParamTok = args[1];
            if (Token::Match(secondParamTok, "%num% ,") && MathLib::isNullValue(secondParamTok->str()))
                continue;

            // Check if second parameter is a float variable or a float literal != 0.0f
            if (printPortability && astIsFloat(secondParamTok,false)) {
                memsetFloatError(secondParamTok, secondParamTok->expressionString());
            }

            if (printWarning && secondParamTok->isNumber()) { // Check if the second parameter is a literal and is out of range
                const MathLib::bigint value = MathLib::toBigNumber(secondParamTok);
                const long long sCharMin = mSettings.platform.signedCharMin();
                const long long uCharMax = mSettings.platform.unsignedCharMax();
                if (value < sCharMin || value > uCharMax)
                    memsetValueOutOfRangeError(secondParamTok, secondParamTok->str());
            }
        }
    }
}

void CheckFunctionsImpl::memsetFloatError(const Token *tok, const std::string &var_value)
{