From: "Markus Schöpflin" <no.spam@spam.spam>
Subject: Re: Fixed point constants issue
Date: Tue, 28 Sep 2010 10:16:30 +0200
Date: 2010-09-28T10:16:30+02:00 [thread overview]
Message-ID: <i7s88s$vrv$1@speranza.aioe.org> (raw)
In-Reply-To: i7qq7u$6u3$1@tornado.tornevall.net
Am 27.09.2010 20:57, schrieb Jeffrey Carter:
> On 09/27/2010 03:33 AM, Markus Schöpflin wrote:
>>
>> The implicit conversion from universal_real to ALTITUDE is only done
>> when the operand is either a numeric literal, a named number, or an
>> attribute. This rules out the first overload.
>
> I don't follow this.
Could you please elaborate?
To quote ARM83 4.6 again: "An implicit conversion of an operand of type
[...] universal_real to another real type, can only be applied if the
operand is either a numeric literal, a named number, or an attribute; [...]"
So an implicit conversion will never be applied to the result of
universal_integer * universal_real, as the operand of the conversion is an
expression. But an implicit conversion to ALTITUDE would be needed for
universal_integer * universal_real -> universal_real to be used.
On the other hand, the line "TEN_FEET_3 : constant Altitude := TEN_FEET_1;"
from the original example does use an implicit conversion, precisely
because TEN_FEET_1 is a named number of type universal_real.
Or am I completely off track here?
Markus
next prev parent reply other threads:[~2010-09-28 8:16 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-13 17:27 Fixed point constants issue Vinzent Hoefler
2010-09-13 18:04 ` Dmitry A. Kazakov
2010-09-13 18:25 ` Vinzent Hoefler
2010-09-13 19:05 ` Niklas Holsti
2010-09-13 20:35 ` Vinzent Hoefler
2010-09-13 20:35 ` Jeffrey Carter
2010-09-13 21:06 ` Vinzent Hoefler
2010-09-14 5:39 ` Niklas Holsti
2010-09-24 14:43 ` Markus Schöpflin
2010-09-24 20:05 ` Vinzent Hoefler
2010-09-24 21:38 ` Jeffrey Carter
2010-09-24 22:42 ` Vinzent Hoefler
2010-09-25 0:16 ` Jeffrey Carter
2010-09-27 10:33 ` Markus Schöpflin
2010-09-27 18:57 ` Jeffrey Carter
2010-09-28 8:16 ` Markus Schöpflin [this message]
2010-09-28 17:28 ` Jeffrey Carter
2010-10-05 6:27 ` Randy Brukardt
2010-10-05 18:40 ` Jeffrey Carter
2010-09-27 17:58 ` Adam Beneschan
2010-09-13 20:32 ` Dmitry A. Kazakov
2010-09-13 21:08 ` Vinzent Hoefler
2010-09-14 6:54 ` J-P. Rosen
2010-09-14 18:28 ` Vinzent Hoefler
2010-09-14 7:47 ` Dmitry A. Kazakov
2010-09-14 17:42 ` Vinzent Hoefler
2010-09-15 8:35 ` Dmitry A. Kazakov
2010-09-15 17:24 ` Vinzent Hoefler
2010-09-15 20:11 ` Dmitry A. Kazakov
2010-09-14 19:44 ` Keith Thompson
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