A C++ API for the pcas

[hill@luke.atdiv.lanl.gov (Jeff Hill)]

Hello all,

I am considering using a C++ API for the new portable ca server 
library. As I see it there are two primary concerns that must be 
addressed:

1) Sites that use the new ca server lib must have a C++ compiler.

Most vendors are now releasing one compiler that eats both ANSI
C and C++. Otherwise under UNIX you can always use g++ as long
as any header file/library difficulties are sorted out. For vxWorks
it is reasonable to get g++ and configure it as a cross compiler.
Does tornado include a properly configured gnu C++ cross compiler?

2) There are many existing C codes which would like to export
EPICS process variables.

In this case a small C++ glue code could be created and this could be
used call the existing ANSI C code whoose function prototypes are 
shrouded by "extern "C" {". There is also the possibility of creating 
a C API which is a wrapper for the C++ API.

If the possibility of a C++ API for the new CA server causes you grief
please reply to this message so that we can make an informed decision.

Thanks

Jeff

______________________________________________________________________
Jeffrey O. Hill			Internet	johill@lanl.gov
LANL MS H820			Voice		505 665 1831
Los Alamos, NM 87545 USA 	FAX		505 665 5107