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7.0

Problem with non static in a typedef declaration

Asked by pixitron in C++ Programming Language

Tags: referenced, static

Hi,

Im working on code to do video processing. Previously I read in the raw data one frame at a time into a fixed sized array. The processing proceeded using a pointer to the array. After processing the current frame, i switched a pointer called previousFramePtr to point at the current frame, and then read in a new frame of data into an array, and pointed the currentFramePtr at that array. this worked very well.


I did this with a few typeDef's...

typedef       int Frame[vSize][hSize];
typedef       int Framerow[hSize];
typedef       BAProw *FramePtr;
      
FramePtr  currentFramePtr, previousFramePtr;

However due to the quirky video codec I'm working on, the actual frame size can change on a frame by frame basis. Therefore I had a method to allow setting the width and height. However when i try to use these member variables, e.g.:

typedef       int Frame[video::Height][video::Width/]

g++ gives me the following error:
member is non-static but referenced as a static member....
I'm not that knowledgeable about typedef, but i fear from that warning message, it means typedef requires a constant type value. In which case my nice little typedef/pointer switching approach breaks down, so any thoughts about an alternative strategy?

btw I'm alloting 500 points, which i'll still give even if the answer is as "yes it can be done with typedef, u make this change". And one other constraint, the solution cant use templates.
[+][-]01/24/04 08:11 AM, ID: 10191431Accepted Solution

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Zone: C++ Programming Language
Tags: referenced, static
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Solution Provided By: khkremer
Participating Experts: 5
Solution Grade: A
 
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