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From: Matthew Heaney <matthew_heaney@acm.org>
Subject: Re: i need help w/problem
Date: 1999/02/22
Date: 1999-02-22T00:00:00+00:00	[thread overview]
Message-ID: <m3zp66ffgs.fsf@mheaney.ni.net> (raw)
In-Reply-To: H0x5GOmX#GA.155@pet.hiwaay.net

"David C. Hoos, Sr." <david.c.hoos.sr@ada95.com> writes:

> It's probably better to use an instantiation of Text_IO.Float_IO.Put...

Since subtype Float was being used, a better choice may be the
predefined package Ada.Float_Text_IO, which was specifically intended to
remove the entry barrier for neophyte Ada programmers.

A very subtle point: Float_Text_IO is _not_ an instantiation of
Text_IO.Float_IO.  It takes Float parameters, and looks just like an
instantiation of Float_IO, but it is not actually an instantiation of
Float_IO.

Which mostly means if you have this:

generic
  type Float_Type is digits <>;
  with package P is new Ada.Text_IO.Float_IO (Float_Type);
package GQ is ...

then the following instantiation

package Q is new GQ (Float, Float_Text_IO);

is illegal.













  reply	other threads:[~1999-02-22  0:00 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-02-21  0:00 i need help w/problem zufandel
1999-02-22  0:00 ` Allan Davis
1999-02-22  0:00   ` bill
1999-02-22  0:00   ` Corey Ashford
1999-02-22  0:00     ` robert_dewar
1999-02-22  0:00       ` dennison
1999-02-22  0:00         ` zufandel
1999-02-22  0:00       ` Matthew Heaney
1999-02-22  0:00         ` Mike Silva
1999-02-22  0:00           ` zufandel
1999-02-22  0:00           ` dennison
1999-02-22  0:00           ` Nick Roberts
1999-02-22  0:00     ` David C. Hoos, Sr.
1999-02-22  0:00       ` Matthew Heaney [this message]
1999-02-23  0:00         ` Pascal Obry
1999-02-23  0:00           ` Matthew Heaney
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