Re: Ada to C++ translator?

[tmoran@acm.org]

>We are re-using code from a legacy system, and we have spent a lot of
>effort on binding this legacy Ada code to the RTOS we are using.
  I don't quite understand the situation:  You had N lines of Ada running,
using an old RTOS, and now you are moving to a new RTOS and finding there
were M system calls that need changing, and M is a painfully large number.
The proposal is to convert to C/C++, which saves writing "pragma Import"
etc for the system calls.  If the automated conversion handles 90%, you
are left with N/10 things to manually fix, and I would think N/10 >> M.
If the system calls of the new RTOS are even slightly different, which
presumably they are or the problem wouldn't exist, you'll still have to do
work on them, even if they're now written in C.  If the structure of the
RTOS is different, you'll also have to change the structure of the app,
whether it's in C or Ada, and that's almost sure to be worse with a
(semi)mechanically translated C than with the original, lucid(?) Ada.  If
the number of *different* system calls is not high, wouldn't it be easier
to just create a layer that translates old RTOS calls into new RTOS calls?