[vtk-developers] Wrappers and signed char

[David Gobbi]

Hi Brad,

I saw that you added "signed char" support to the wrappers.  Adding new 
types to the wrappers is good, but if you're not careful, you'll run out 
of available types pretty fast!  You're already up to 0xD, so only 0xE 
and 0xF remain.

You added a new token for "signed char".

You should have added a token for "signed" so that "signed" and "char" 
in combination would make a "signed char".

This is actually pretty easy to do, because "unsigned" is already in 
there, you just have to duplicate the "unsigned" code in vtkParse.y and 
have "signed" evaluate to "0x20".

Then, the wrappers will see the basic type as "char", and can check to 
see if it is preceeded by "signed" in exactly the same way that they 
check for "unsigned".

A side benefit of this is that the wrappers will no longer choke on 
"signed int" or "signed short" etc., instead they will properly 
interpret these as being the same as "int" and "short".

 - David