C++ (Cpp) lengthPtr Examples

Example #1

File: StringOperations.cpp Project: PixelClear/Algorithms

int main()
{
    int len = length("Paritosh");
    printf("%d\n", len);

    len = lengthPtr("Paritosh");
    printf("%d\n", len);

    char s[123] = "Paritosh";
    cat(s, "Kulkarni");
    printf("%s\n", s);

    char s1[123] = "Paritosh";
    ncpy(s1, "Kulkarni",3);
    printf("%s\n", s1);

    int ret = cmp(s,s1);
    printf("%d\n", ret);

    char* p = "Paritosh";
    //rev1(p);
    //rightShift(p, 3);
    leftShift(p, 3);
    printf("%s", p);

    return 0;
}

Example #2

File: CExprUDPMsg.cpp Project: cdaffara/symbiandump-os2

// -----------------------------------------------------------------------------
// CExprUDPMsg::TryParsingL
// -----------------------------------------------------------------------------
//
TInt CExprUDPMsg::TryParsingL( TDes8& aData, TInt& aLength )
    {
    __ASSERT_ALWAYS( aData.Left( KUDPPrefix().Length() ) == KUDPPrefix,
        User::Panic( _L("Protocol"), 1 ) );

    // UDP:0123,000e,[Some test data]
    TInt frameOverhead =
        KUDPPrefix().Length() +
        KHexDecimalLength +
        KPortSuffix().Length() +
        KHexDecimalLength +
        KLengthSuffix().Length() +
        KDataSuffix().Length() +
        KMessageSuffix().Length();

    if ( aData.Length() >= frameOverhead )
        {
        TPtrC8 portPtr(
            aData.Mid( KUDPPrefix().Length(), KHexDecimalLength ) );

        TLex8 portLexer( portPtr );
        TUint port;
        if ( portLexer.Val( port, EHex ) != KErrNone )
            {
            return KErrCorrupt;
            }
        DEBUG_PRINT( DEBUG_STRING( "CExprUDPMsg::TryParsingL, port = %d" ), port );

        //Check port suffix
        if ( aData.Mid( KUDPPrefix().Length() +
            KHexDecimalLength, KPortSuffix().Length() ) != KPortSuffix )
            {
            return KErrCorrupt;
            }

        TPtrC8 lengthPtr( aData.Mid( KUDPPrefix().Length() +
            KHexDecimalLength + KPortSuffix().Length(), KHexDecimalLength ) );
        TLex8 lengthLexer( lengthPtr );
        TUint length;
        if ( lengthLexer.Val( length, EHex ) != KErrNone )
            {
            return KErrCorrupt;
            }
        DEBUG_PRINT( DEBUG_STRING( "CExprUDPMsg::TryParsingL, length = %d" ), length );

        //Check length suffix
        if ( aData.Mid(
            KUDPPrefix().Length() +
            KHexDecimalLength +
            KPortSuffix().Length() +
            KHexDecimalLength, KLengthSuffix().Length() ) != KLengthSuffix )
            {
            return KErrCorrupt;
            }

        DEBUG_PRINT( DEBUG_STRING( "CExprUDPMsg::TryParsingL, parsing data" ), length );

        if ( aData.Length() >= TInt( frameOverhead + length ) )
            {
            TInt messagePos = KUDPPrefix().Length() +
                KHexDecimalLength +
                KPortSuffix().Length() +
                KHexDecimalLength +
                KLengthSuffix().Length();

            TPtrC8 message( aData.Mid( messagePos, length ) );
            if ( aData.Mid( messagePos + length,
                KDataSuffix().Length() ) != KDataSuffix )
                {
                return KErrCorrupt;
                }
            DEBUG_PRINT( DEBUG_STRING( "CExprUDPMsg::TryParsingL, message OK" ) );

            if ( aData.Mid( messagePos + length + KDataSuffix().Length(),
                KMessageSuffix().Length() ) != KMessageSuffix )
                {
                return KErrCorrupt;
                }

            // send parsed results
            iObserver->FrameParsedL( port, message );
            // set the length of the handled message
            aLength = frameOverhead + length;

            return KErrNone;
            }

        }
    return KErrNone;
    }