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From: Ada novice on 7 Aug 2010 13:43
Hi, I've been trying to install SPARK GPL on a Windows machine. I
already have GNAT GPL (and GPS). I found a brief introduction to SPARK
here:

http://www.adacore.com/2009/06/29/gem-68/

For the installation, I added C:\SPARK\2010\bin to the Windows path
environment and overwrote the existing spark.py in the GNAT folder by
this operation mentioned in the SAPRK manual:

Copy the file spark.py from <spark_install_dir>/share/gps/plug-ins to
<gnatpro_install_dir>/share/gps/plug-ins.

If I understand correctly, this is all I need to do for the
installation. However in GPS I don't get a SPARK menu header. I
checked Tools > Plugins and Spark is checked though. What do I need to
do more for the installation to succeed? Does SPARK GPL work with GNAT
GPL?


On a related note, if I understand correctly then SPARK GPL only
features a subset of the Ada language. Does this implies that not
every program in Ada will work with SPARK?


Thanks

YC
From: Phil Thornley on 7 Aug 2010 15:37
On 7 Aug, 18:43, Ada novice <po...(a)gmx.us> wrote:
> Hi, I've been trying to install SPARK GPL on a Windows machine. I
> already have GNAT GPL (and GPS). I found a brief introduction to SPARK
> here:
>
> http://www.adacore.com/2009/06/29/gem-68/
>
> For the installation, I added  C:\SPARK\2010\bin to the Windows path
> environment and overwrote the existing  spark.py in the GNAT folder by
> this operation mentioned in the SAPRK manual:
>
> Copy the file spark.py from <spark_install_dir>/share/gps/plug-ins to
> <gnatpro_install_dir>/share/gps/plug-ins.
>
> If I understand correctly, this is all I need to do for the
> installation. However in GPS I don't get a SPARK menu header. I
> checked Tools > Plugins and Spark is checked though. What do I need to
> do more for the installation to succeed? Does SPARK GPL work with GNAT
> GPL?

It all worked out-of-the box for me (Windows 7 Pro).

Are you sure that you have the path set correctly (and have you
restarted after changing the path - that sometimes helps).

The SPARK GPS manual says that the plug-in is only installed if GPS
finds the SPARK tools in the path. You can check this by opening up a
command window and typing "spark -version". This just responds with
the current version of SPARK and doesn't try to analyse any files.

>
> On a related note, if I understand correctly then SPARK GPL only
> features a subset of the Ada language. Does this implies that not
> every program in Ada will work with SPARK?

Ahhh, you definitely need to read a bit more about SPARK. Start with
the SPARK_LRM in SPARK\2010\docs which has all the background and
rationale for the language.

Cheers,

Phil
From: Yannick Duchêne (Hibou57) on 7 Aug 2010 16:30
Le Sat, 07 Aug 2010 19:43:30 +0200, Ada novice <posts(a)gmx.us> a écrit:
> On a related note, if I understand correctly then SPARK GPL only
> features a subset of the Ada language. Does this implies that not
> every program in Ada will work with SPARK?
This is not a SPARK GPL limitation (if I am not failing to understand
you), this is a SPARK feature. This is a feature of SPARK to be a safe (in
some regards) subset of Ada.

SPARK GPL is still full SPARK (more or less).

--
There is even better than a pragma Assert: a SPARK --# check.
--# check C and WhoKnowWhat and YouKnowWho;
--# assert Ada;
-- i.e. forget about previous premises which leads to conclusion
-- and start with new conclusion as premise.
From: Ada novice on 7 Aug 2010 17:00
On Aug 7, 9:37 pm, Phil Thornley <phil.jpthorn...(a)gmail.com> wrote:
> It all worked out-of-the box for me (Windows 7 Pro).
>
> Are you sure that you have the path set correctly (and have you
> restarted after changing the path - that sometimes helps).
>
> The SPARK GPS manual says that the plug-in is only installed if GPS
> finds the SPARK tools in the path.  You can check this by opening up a
> command window and typing "spark -version".  This just responds with
> the current version of SPARK and doesn't try to analyse any files.

I could make it work. Actually I put C:\SPARK\2010\bin at the end of
my path and this was creating problem. I tested to run spark -version
and it wasn't working. However as it worked when I changed the
directory to C:\SPARK\2010\bin, I knew there is something wrong in the
path. So I moved C:\SPARK\2010\bin at the beginning of the path and
now it works fine. Now I have SPARK in GPS. I wonder why SPARK didn't
run when it was at the end of the path. It might be that something is
set wrong in my path and I need to verify this.


> > On a related note, if I understand correctly then SPARK GPL only
> > features a subset of the Ada language. Does this implies that not
> > every program in Ada will work with SPARK?
>
> Ahhh, you definitely need to read a bit more about SPARK.  Start with
> the SPARK_LRM in SPARK\2010\docs which has all the background and
> rationale for the language.

Thanks. I shall do that.


Thanks again
YC
From: Ada novice on 7 Aug 2010 17:04
On Aug 7, 10:30 pm, Yannick Duchêne (Hibou57)
<yannick_duch...(a)yahoo.fr> wrote:
> This is not a SPARK GPL limitation (if I am not failing to understand  
> you), this is a SPARK feature. This is a feature of SPARK to be a safe (in  
> some regards) subset of Ada.
>
> SPARK GPL is still full SPARK (more or less).

Yes, you said it right: SPARK is a safe subset of Ada. I was wrong in
adding the term GPL as you realized.

>
> --
> There is even better than a pragma Assert: a SPARK --# check.
> --# check C and WhoKnowWhat and YouKnowWho;
> --# assert Ada;
> --  i.e. forget about previous premises which leads to conclusion
> --  and start with new conclusion as premise.

It's hard for me to understand what you wrote here...but hopefully
I'll understand with time :).

Thanks
YC
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