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Programming > Ada > Re: Prohibiting...
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Re: Prohibiting dynamic allocation for the given type

by Maciej Sobczak <see.my.homepage@[EMAIL PROTECTED] > Mar 19, 2008 at 01:24 AM

On 19 Mar, 04:06, gp...@[EMAIL PROTECTED]
 wrote:

> Ada is high level language

That does not matter.
Ada is a high level language, but still provides two ways to create an
object:

X : Type;
Y : Type_Ptr := new Type;

If these two methods are available, then apparently there is a
difference between them and this difference is not in *where* objects
are created, but *how long* they are allowed to live.

The high-level part of Ada can hide the "where" part, but not "how
long".

For some types I might want to prohibit one of these two ways of
object creation.

Prohibiting the first one is easy with limited types that have unknown
discriminants + factory functions that return pointers.

Prohibiting the second one seems to be impossible.
For me this is a limitation.

> What's wrong with good old comments atop of type declaration.

What's wrong with C with good comments? :-)

> But if you insist you may do run-time check by
> defining custom Storage_Pool pool for your object

Storage_Pool is a property of the pointer, not the type.

--
Maciej Sobczak * www.msobczak.com * www.inspirel.com
 




 20 Posts in Topic:
Prohibiting dynamic allocation for the given type
Maciej Sobczak <see.my  2008-03-18 14:30:37 
Re: Prohibiting dynamic allocation for the given type
gpriv@[EMAIL PROTECTED]   2008-03-18 20:06:45 
Re: Prohibiting dynamic allocation for the given type
Maciej Sobczak <see.my  2008-03-19 01:24:57 
Re: Prohibiting dynamic allocation for the given type
Georg Bauhaus <rm.tsoh  2008-03-19 12:31:23 
Re: Prohibiting dynamic allocation for the given type
Georg Bauhaus <rm.tsoh  2008-03-19 23:17:46 
Re: Prohibiting dynamic allocation for the given type
gpriv@[EMAIL PROTECTED]   2008-03-19 06:13:16 
Re: Prohibiting dynamic allocation for the given type
Maciej Sobczak <see.my  2008-03-19 06:54:45 
Re: Prohibiting dynamic allocation for the given type
Pascal Obry <pascal@[E  2008-03-19 15:12:05 
Re: Prohibiting dynamic allocation for the given type
"Randy Brukardt"  2008-03-19 18:08:34 
Re: Prohibiting dynamic allocation for the given type
Simon Wright <simon.j.  2008-03-20 20:26:19 
Re: Prohibiting dynamic allocation for the given type
Adam Beneschan <adam@[  2008-03-19 07:38:37 
Re: Prohibiting dynamic allocation for the given type
gpriv@[EMAIL PROTECTED]   2008-03-19 08:43:17 
Re: Prohibiting dynamic allocation for the given type
Eric Hughes <eric.eh9@  2008-03-19 09:37:46 
Re: Prohibiting dynamic allocation for the given type
Robert A Duff <bobduff  2008-03-19 20:48:18 
Re: Prohibiting dynamic allocation for the given type
gpriv@[EMAIL PROTECTED]   2008-03-19 16:40:46 
Re: Prohibiting dynamic allocation for the given type
Robert A Duff <bobduff  2008-03-19 20:43:56 
Re: Prohibiting dynamic allocation for the given type
Maciej Sobczak <see.my  2008-03-20 14:11:29 
Re: Prohibiting dynamic allocation for the given type
Eric Hughes <eric.eh9@  2008-03-20 14:35:42 
Re: Prohibiting dynamic allocation for the given type
Eric Hughes <eric.eh9@  2008-03-20 15:03:46 
Re: Prohibiting dynamic allocation for the given type
"Randy Brukardt"  2008-03-20 20:04:06 

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tan12V112 Wed Oct 15 19:38:22 CDT 2008.