The Sinclair QL Forum

Hi,

I assumed that performing a reverse string slice was was not allowed, though it is not stated thst this is not allowed. I used a common sense approach to the issue.

The string length in podition zero, only causes problems when converting other BASIC programmes to S*BASIC. But if one knows about this it is not a problem.

I had a chat, via email, with Wolfgang on this matter and he is of the opinion that:

• Debugging SuperBASIC is an absolute pain!
• a$(2 to 1) or a$(1 to 0) giving an empty string should possible result in an error instead.
• Using negative numbers, he thinks that the code treats numbers as unsigned, so that a$(1 to -1) is being read as a$(1 to $FFFF) which is as per the results, so makes sense.

Given his last point above, I did try to find it in the source code to see if it matches what he thinks, and for the life of me, I couldn't find it! I suspect this is why he made his first point!


Cheers,
Norm.