Thread: Operator= overloading from another type

Hi, I've got a problem a problem in overloading operator=. Well, I have little experience in overloading operators. How do I overload = operator from a different type of class?

I've made this:

Code:

	inline CBitmapString& operator=(const string theString)
	{
		mString=theString;
		mLength=countLength();
		return *this;
	}

But the code is faulty. Can you help me please?

Well, if I do this:

Code:

  CBitmapString*  mStringTipsGirl1;
  mStringTipsGirl1 = new CBitmapString;
  string tipsGirl;
  mStringTipsGirl1=tipsGirl;

it returned this error:

Code:

error: cannot convert ‘std::string’ to ‘CBitmapString*’ in assignment

operator=() can only be a member of the class at the LHS of an expression. It is not possible to define an operator=() for basic types (int, float, double, ..... and any pointer). Your compiler is therefore complaining about an attempt to set a "pointer to CBitmapString" to something which is not a "pointer to CBitmapString".

If you supply an operator=() which accepts a string argument as a member of your CBitmapString class (which I suspect you've done, but you haven't made that clear), you can do;

Code:

    *mStringTipsGirl1=tipsGirl;

Thanks a lot. Yeah, forgot about the pointer.