comp.lang.ada
 help / color / mirror / Atom feed
From: Shark8 <OneWingedShark@gmail.com>
Subject: Re: Problem with generic linked list package
Date: Sat, 09 Aug 2014 12:51:32 -0600
Date: 2014-08-09T12:51:32-06:00	[thread overview]
Message-ID: <W4uFv.853$hf.752@fx01.iad> (raw)
In-Reply-To: <75864d79-609c-4e37-98d8-6b5f050ad59d@googlegroups.com>

On 09-Aug-14 08:32, Laurent wrote:
>     with function "<"(Left, Right : Element) return Boolean is <>;
>     with function "="(Left, Right : Element) return Boolean is <>;
>
> There is no "<" and "=" defined for Element_Type, normally. So the "<>"
> seems to do the trick but why?
> The box tells the compiler that it will get the info it needs later.
> But in this case there is no later, isn't it?

Nope; the "is <>" tells the compiler that the function named doesn't 
have to be explicitly named in the instantiation *if it is visible*.

This means that the above 'automatically' uses "<" and '=' at the point 
of instantiation (if there's a conformant function that's visible).

  parent reply	other threads:[~2014-08-09 18:51 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-28 13:26 Problem with generic linked list package Laurent
2014-07-29  7:51 ` Jacob Sparre Andersen
2014-07-29  8:12   ` Laurent
2014-07-29  8:27 ` Stephen Leake
2014-07-29 15:38   ` Laurent
2014-08-07 19:07     ` Laurent
2014-08-07 19:21       ` Adam Beneschan
2014-08-07 19:25         ` Adam Beneschan
2014-08-07 22:20           ` Laurent
2014-08-07 23:35             ` Adam Beneschan
2014-08-08  4:42               ` Laurent
2014-08-09 14:32                 ` Laurent
2014-08-09 14:58                   ` AdaMagica
2014-08-09 15:22                   ` Jeffrey Carter
2014-08-09 18:51                   ` Shark8 [this message]
2014-08-09 21:53                     ` Laurent
2014-08-09 22:25                       ` Jeffrey Carter
2014-08-10  8:22                       ` Simon Wright
2014-08-10 10:45                         ` Simon Wright
2014-08-10 20:20                           ` Laurent
2014-08-10 21:57                             ` Simon Wright
2014-08-10 23:42                               ` Jeffrey Carter
2014-08-11  4:51                                 ` Laurent
2014-08-11  5:13                                   ` Jeffrey Carter
2014-08-11  7:56                                     ` Laurent
2014-08-07 20:37       ` Shark8
2014-08-07 22:30         ` Laurent
2014-08-07 23:22           ` Shark8
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox