C++ TChar::GetNumericValue方法代码示例

/*
 * Generates a hash value by reversing the matchLength least significant digits,
 * ignoring non-digits and zeroes at the end of the number.  Returns error if no phone
 * digits are supplied.

 * \param phoneNumberString A descriptor containing a phone number.
 * \param matchLength The number of digits from the right of the phone number to use.
 * \param numPhoneDigits The number of digits found in the phone number string.
 * \param error Qt error code.*
 * \return An integer representation of the phone number string in reverse.
 */
TInt32 CntFilterDetail::TMatch::createHash(
                                    const TDesC& phoneNumberString, 
                                    TInt matchLength, 
                                    TInt& numPhoneDigits)
{
    TInt phoneNumberLength = phoneNumberString.Length();
    TInt startIndex = 0;
    if (phoneNumberLength > matchLength) {
        startIndex = phoneNumberLength - matchLength;
    }
    
    numPhoneDigits = 0;
    TUint reversedDigits = 0;
    TInt mult = 1;
    
    for (TInt chrIndex = startIndex; (numPhoneDigits < matchLength) && (chrIndex < phoneNumberLength); chrIndex++) {
        TChar chr = phoneNumberString[chrIndex];
        if (chr.IsDigit()) {
            reversedDigits += (chr.GetNumericValue()) * mult;
            mult = mult * 10;
            ++numPhoneDigits;
        }
    }
    return reversedDigits ;
}

/**
Generates a hash value by reversing the aMatchLength least significant digits,
ignoring non-digits and zeroes at the end of the number.  Asserts if no phone
digits are supplied.

@param aPhoneNumberString A descriptor containing a phone number.
@param aMatchLength The number of digits from the right of the phone number to use.
@param aNumPhoneDigits The number of digits found in the phone number string.

@return An integer representation of the phone number string in reverse.
*/
TInt32 CPplCommAddrTable::TMatch::CreateHashL(const TDesC& aPhoneNumberString, TInt aMatchLength, TInt& aNumPhoneDigits)
	{
	TInt phoneNumberLength = aPhoneNumberString.Length();
	__ASSERT_DEBUG(phoneNumberLength > 0, User::Leave(KErrNotSupported) );

	TInt startIndex = 0;

	if (phoneNumberLength > aMatchLength)
		{
		startIndex = phoneNumberLength - aMatchLength;
		}

	aNumPhoneDigits = 0;
	TUint reversedDigits = 0;
	TInt mult = 1;

	for (TInt chrIndex = startIndex; (aNumPhoneDigits < aMatchLength) && (chrIndex < phoneNumberLength); chrIndex++)
		{
		TChar chr = aPhoneNumberString[chrIndex];
		if (chr.IsDigit() )
			{
			reversedDigits += (chr.GetNumericValue() ) * mult;
			mult = mult * 10;
			++aNumPhoneDigits;
			}
		}

	return reversedDigits ;
	}

TUint TInputManager::GetCipher(TChar aChar)
	{
	TUint value;
	switch(aChar)
		{
		case 'a': value = 10; break;
		case 'b': value = 11; break;
		case 'c': value = 12; break;
		case 'd': value = 13; break;
		case 'e': value = 14; break;
		case 'f': value = 15; break;
		default: value = aChar.GetNumericValue(); 
		}
	return value;
	}

void CTestDtmfObserver::HandleDTMFEvent( const MCCEDtmfObserver::TCCEDtmfEvent aEvent, 
        	                             const TInt aError,
                                         const TChar aTone )
	{
	TEvent newEvent;
	
	newEvent.iCallID = 0; // not a call specific event
	newEvent.iEventType = CEventStorage::EDtmfEvent;
	newEvent.iEventID = aEvent;
	newEvent.iParam1 = aError;
	newEvent.iParam2 = aTone.GetNumericValue();
	
	// If TChar is empty, set param2 to zero
	if ( newEvent.iParam2 == KErrNotFound )
		{
		newEvent.iParam2 = 0;
		}
			
	iEventStorage->StoreEvent( newEvent );
	}

void CActiveConsole::ProcessKeyPressL(TChar aChar)
	{
	if (aChar == EKeyEscape)
		{
		PRINT(_L("CActiveConsole: ESC key pressed -> stopping active scheduler...\n"));
		CActiveScheduler::Stop();
		return;
		}
	aChar.UpperCase();
	if (iCmdGetValue != 0 && aChar == '\r')
		{
		if (iLastChar == 'K')
			{
			iValue *= iGetHexValue ? 0x400 : 1000;
			}
		if (iLastChar == 'M')
			{
			iValue *= iGetHexValue ? 0x10000 : 1000000;
			}
		PRINT1(_L("CActiveConsole: Value %d\n"),iValue);
		ProcessValue();
		}
	if (iCmdGetValue != 0 )
		{
		if (iGetHexValue)
			{
			if (aChar.IsDigit())
				{
				iValue = iValue * 16 + aChar.GetNumericValue();
			}
			else
				{
				if (aChar.IsHexDigit())
					{
					iValue = iValue * 16 + (TUint)aChar - 'A' + 10;
					}
				else
					{
						if (aChar != 'K' && aChar != 'M')
						{
						PRINT(_L("Illegal hexadecimal character - Enter command\n"));
						iCmdGetValue = 0;
						}
					}
				}
			}
		else
			{
			if (aChar.IsDigit())
				{
				iValue = iValue * 10 + aChar.GetNumericValue();
				}
			else
				{
				if ((aChar == 'X') && (iLastChar == '0') && (iValue == 0))
					iGetHexValue = ETrue;
				else
					{
					if (aChar != 'K' && aChar != 'M')
						{
						test.Printf(_L("Illegal decimal character - Enter command\n"));
						iCmdGetValue = 0;							
						}
					}
				}
			}
		}
	else
		{
		switch (aChar)
			{
			case 'F' :
				TESTNEXT(_L("Flushing Cache"));
				test_KErrNone(DPTest::FlushCache());
				ShowMemoryUse();
				iPrompt = ETrue;
				break;
				
			case 'I' :
				CacheSize(0,0);
				ShowMemoryUse();
				iPrompt = ETrue;
				break;
	
			case 'Q' :
				gQuiet = ETrue;
				iPrompt = ETrue;
				break;

			case 'V' :
				gQuiet = EFalse;
				iPrompt = ETrue;
				break;
				
			case '?' :
				ShowHelp();
				break;

			case '=' :
				iCmdGetValue = iLastChar;
//.........这里部分代码省略.........