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Newsgroups: comp.lang.ada
Date: Sat, 26 May 2018 06:56:03 -0700 (PDT)
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Subject: Re: Interfaces.C.Strings chars_ptr memory management strategy
From: Shark8 <onewingedshark@gmail.com>
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Xref: reader02.eternal-september.org comp.lang.ada:52697
Date: 2018-05-26T06:56:03-07:00
List-Id: <comp.lang.ada>

On Saturday, May 26, 2018 at 6:45:01 AM UTC-6, NiGHTS wrote:
> On Friday, May 25, 2018 at 10:52:55 PM UTC-4, Shark8 wrote:
> > On Friday, May 25, 2018 at 4:22:13 PM UTC-6, NiGHTS wrote:
> > > 
> > > Here is just a quick and sloppy idea I had on how to tackle my problem.
> > > 
> > > str : chars_ptr := New_String ("                                     ");
> > > 
> > > I find the first line quite ugly. I'm sure there is an easier way to create a large empty string but I can't seem to come up with an elegant way to do it.
> > 
> > 
> > Something like this?
> > Big_String : chars_ptr := New_String( (1..200 => ' ') );
> 
> Thanks, It was on the tip of my brain I just for some reason couldn't put it together quite right.

It happens.
If you're going to be using this a lot I'd recommend a generic-wrapper something like:

GENERIC
  Max_Size : Natural;
FUNCTION Buffer_String Return Chars_Ptr;
FUNCTION Buffer_String Return Chars_Ptr IS
( New_String( (1..Max_Size => ' ') ) );

Or maybe a package.