[sane-devel] typedef int SANE_Word, etc
azummo-lists at towertech.it
Wed Dec 3 20:18:31 UTC 2008
On Wed, 3 Dec 2008 04:53:24 +0300
ABC <abc at telekom.ru> wrote:
> Btw, what the point of having these typedefs?
> (Besides obscurity and advertising of course).
> > typedef unsigned char SANE_Byte;
> > typedef int SANE_Word;
> > typedef SANE_Word SANE_Bool;
> > typedef SANE_Word SANE_Int;
> > typedef char SANE_Char;
> > typedef SANE_Char *SANE_String;
> > typedef const SANE_Char *SANE_String_Const;
> > typedef void *SANE_Handle;
> > typedef SANE_Word SANE_Fixed;
> > sane-backends/include/sane/sane.h:42
I think they were defined to have a set of
types with known size, useful when you are passing
structures to the hardware (a very bad practice!!!!)
and for networking (bad too, you should never make assumptions
on types for those things).
Now that we have ANSI C types for everything,
it might be useful to switch.
void *SANE_Handle is used to pass an opaque
pointer and should be retained.
SANE_Char and SANE_String could easily go away,
along with SANE_Byte. For the others a little bit
of attention is required.
I doubt anyone else, except me, is interested in doing so
Tower Technologies - Torino, Italy
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