Re: Operator overloading in memberclass.

Victor Bazarov <v.bazarov@comcast.invalid>
Mon, 22 Aug 2011 13:32:43 -0400
On 8/21/2011 6:26 PM, Marz wrote:

I'm running ubuntu 11.04 using codeblocks. I'm working on an SDL

game. And, I keep getting the following error: error: no match for
?operator=? in ?*(((Animation*)this)->Animation::FrameList + ((unsigned
int)(((unsigned int)index) * 44u))) = frame?

Here's a reduced representation of the code.

class Frame
                Frame operator=(const Frame frame);/*<---...tried every
                                                    configuration of this line.*/

The idiomatic form is

      Frame& operator=(const Frame&);

A much less idiomatic form is

      Frame& operator=(Frame&);

There is a move assignment operator, but it's very new and you probably
don't care about it.


class Animation
            void SetFrame(int index, Frame * frame);
            Frame *FrameList;

It's an array of Frame objects.


//character.cpp //////////////////////////////////////////////////////////////

Frame Frame::operator=(const Frame frame)


void Animation::{

You probably mean

    void Animation::SetFame(int index, Frame * frame) {


Now, think about it. 'frame' is a *pointer* to Frame. You're trying to
assign a POINTER to an object. Ain't gonna work, unless you define the
assignment operator to take a pointer instead of a reference or a value.


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