From: mario.blunk.gplus@gmail.com
Subject: Re: type definition for an integer with discrete range
Date: Fri, 29 Mar 2019 09:46:46 -0700 (PDT)
Date: 2019-03-29T09:46:46-07:00 [thread overview]
Message-ID: <70d9f913-d9e1-4849-b730-0ee4ebaaec23@googlegroups.com> (raw)
In-Reply-To: <36c2ff61-8cca-4435-995f-dfc34fa44b69@googlegroups.com>
On Friday, March 29, 2019 at 5:34:24 PM UTC+1, tranng...@gmail.com wrote:
> On Friday, March 29, 2019 at 11:10:42 PM UTC+7, mario.b...@gmail.com wrote:
> > Hello,
> > I'm looking for a way to define a type that runs from let say -100 to +100 with gaps of 5 width. Important is to make sure that a value like 7 can not be assigned to the type.
> >
> > something like:
> >
> > type number is new integer range -100 .. 100;
> > -- or
> > subtype number is integer range -100 .. 100;
> >
> > -- with this special thing or something like that:
> > for number'small use 5; -- can not applied here. works with fixed point types only
> >
> > Thanks !
>
> That's a fixed point type.
It is about angles to be correct. The problem is that fixed types are rounded. I tried
type type_angle is delta 90.0 range -359.9 .. 359.9; -- unit is degrees
for type_angle'small use 90.0;
-- but it is possible to assign a value that is not a multiple of 90 degree and even outside the domain of type_angle:
angle : type_angle := 370.0;
I want a constraint error being raised.
next prev parent reply other threads:[~2019-03-29 16:46 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-29 16:10 type definition for an integer with discrete range mario.blunk.gplus
2019-03-29 16:34 ` tranngocduong
2019-03-29 16:46 ` mario.blunk.gplus [this message]
2019-03-30 4:17 ` tranngocduong
2019-03-30 4:19 ` tranngocduong
2019-03-29 20:24 ` Simon Wright
2019-03-29 20:51 ` mario.blunk.gplus
2019-03-29 21:24 ` Simon Wright
2019-03-30 20:44 ` mario.blunk.gplus
2019-03-30 22:13 ` Jere
2019-04-01 6:59 ` mario.blunk.gplus
2019-04-01 15:52 ` AdaMagica
2019-04-01 16:27 ` Simon Wright
2019-04-01 16:41 ` AdaMagica
2019-03-29 21:57 ` Dmitry A. Kazakov
2019-03-30 21:45 ` John Perry
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