Re: only 16 enum states?

[Marty Kraimer <mrk@aps.anl.gov>]

Dirk Zimoch wrote:

> Hi all,
>
> when I try to read the choices of an enum field, I only get the first 
> 16. This ist not enough to read all the choices of the LINR field 
> (menuConvert) if there are many breakpoint tables. It's even not 
> enough to read all choices of the STAT field.


As you found out it is a problem in db_access.h, which describes that 
data that passes through Channel Access.

> Is there a fix?

No.

> What happens if I change in db_access.h
>
> #define MAX_ENUM_STATES        16
>
> in
>
> #define MAX_ENUM_STATES        255


You will break any existing CA client and server that uses ENUMs

> ?
>
>
> Dirk

Perhaps Bob Dalesio can make a few comments about how we plan to address 
this and other known problems created by db_access.h. For example 
strings are limited to 40 characters. We hope to start addressing these 
issues in the near future.