Method memsetZeroBytes

lib/checkfunctions.cpp:522–549

--------------------------------------------------------------------------- memset(p, y, 0 /* bytes to fill */) <- 2nd and 3rd arguments inverted ---------------------------------------------------------------------------

// memset(p, y, 0 /* bytes to fill */) <- 2nd and 3rd arguments inverted
//---------------------------------------------------------------------------
void CheckFunctionsImpl::memsetZeroBytes()
{
// FIXME:
//  Replace this with library configuration.
//  For instance:
//     <arg nr="3">
//       <warn knownIntValue="0" severity="warning" msg="..."/>
//     </arg>

    if (!mSettings.severity.isEnabled(Severity::warning))
        return;

    logChecker("CheckFunctions::memsetZeroBytes"); // warning

    const SymbolDatabase *symbolDatabase = mTokenizer->getSymbolDatabase();
    for (const Scope *scope : symbolDatabase->functionScopes) {
        for (const Token* tok = scope->bodyStart->next(); tok != scope->bodyEnd; tok = tok->next()) {
            if (Token::Match(tok, "memset|wmemset (") && (numberOfArguments(tok)==3)) {
                const std::vector<const Token *> &arguments = getArguments(tok);
                if (WRONG_DATA(arguments.size() != 3U, tok))
                    continue;
                const Token* lastParamTok = arguments[2];
                if (MathLib::isNullValue(lastParamTok->str()))
                    memsetZeroBytesError(tok);
            }
        }
    }
}

void CheckFunctionsImpl::memsetZeroBytesError(const Token *tok)
{