C++ (Cpp) MyString::Clearの例

コード例 #1

ファイル: MyString.cpp プロジェクト: Reline/AppointmentManager

// 
//
//      // Substr
//            // Takes two int arguments,
//            // An int for the starting index,
//            // An int for the number of chars to return.
//            // Returns a MyString with the requested sub-string
////   from the original MyString
//            // throws an exception if startIndex + numChars > Length()
MyString MyString::SubStr(int startIndex, int numChars) const
{
	if(startIndex + numChars > _length)
	{
		throw "Error: Index out of range.";
	}
	MyString tempStr;
	tempStr.Clear(numChars);
	//char *tempStr = new char [numChars + 1];
	int tempIndex = 0;
	for(int i = startIndex; tempIndex < numChars; i++)
	{
		tempStr._string[tempIndex] = _string[i];
		tempIndex++;
	}
	tempStr._string[numChars] = '\0';
	return tempStr;
}