Re: Passing a String to a C/C++ Subprogram (Special Case)

[Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>]

On 10/15/2013 02:13 PM, Eryndlia Mavourneen wrote:
>
> Thanks, Jeff.  This could be a good way to manage things.  Unfortunately, I
> can not guarantee that I can perform a trim operation or that the last
> character is indeed not being used (for the placement of a nul).  I suppose I
> could create the wrapper, as you said, and copy the String (1 .. size) to a
> String (1 .. size + 1) and place a nul in the last character of the target
> string.  Of course, this does not add a lot of overhead for short strings,
> but it is a hard real-time system.

I would use the To_C or New_String functions to ensure that what is being passed 
to C is convention-C and NUL-terminated.

-- 
Jeff Carter
"Help! Help! I'm being repressed!"
Monty Python & the Holy Grail
67