Importing C Structures

[ct_oreg@vega.concordia.ca (Chris O'Regan)]

   For my Real-Time Systems project, my partner and I are writing a program
to control a train set.  We will be working on an Indy using GNAT 2.03, and
as little C code as possible.

   We need to interface the Indy's serial port.  We have some documention
which explains how to do this in standard C, but we would prefer to do this
in Ada.  We figure that we will need to import the functions and types from
the standard C library.

   Importing a function isn't a problem, but what about data types?
Rationale and the Reference Manual claim that it is possible, but without an
sample code snippet, we don't know where to begin.

   Could someone shed some light on the subject?  Or should we give in and
write our serial port routines in C?


Chris O'Regan
Computer Engineering,
Concordia University,
Montreal, Canada.

--