Re: Help - Interfacing with C using Ada 83

[greg@cae.ca (Greg Dickie X2955)]

Have not done this in DOS but we do it all the time in Windows/UNIX and I 
don't see any difference. Essentially you need a pragma interface in the
ADA code to define the C call. The other ActivADA compilers I've only used 
with MSVC++ object files but I believe the Borland format is the same so
you just need to link the C object file in with the rest of the ADA code.
THis is a pretty straightforward operation.

Hope this helps 

Tai Pan (lbfoster@hiwaay.net) wrote:
: Can somebody tell me how to get Ada 83 to call a C routine in an MS-DOS
: environment? I'm using an ActivAda compiler and Borland C++ v4.51. The C
: routine returns null terminated strings up to 255 characters. I have the
: C source so the C compiler settings can be adjusted if required.
: Portability is not an issue. 

: My project engineer says it can't be done. I find this hard to believe
: but I'm new to Ada and don't have much "hands on". I'm a bit paranoid
: about playing with the Ada compiler since compiling the demo "hello
: world" with three (!) added resulted in a compiler crash that scrambled
: my primary drive (not running the program, just trying to compile it). 
: Surely Ada can handle such a seemingly simple task. Any help would be
: appreciated. Thanks in advance.

--
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                                                Greg Dickie
                                                Just a Guy
                                                CAE Electronics Ltd.
                                                Montreal, Canada
                                                (514) 341-6780 X2955
                                                greg@cae.ca