RE: [sv-bc] RE: Mantis 1523

It's not my proposal.

> -----Original Message-----
> From: Gordon Vreugdenhil [mailto:gordonv@model.com]
> Sent: Thursday, August 25, 2011 4:48 PM
> To: Bresticker, Shalom
> Cc: Arturo Salz; Steven Sharp; SV-BC
> Subject: Re: [sv-bc] RE: Mantis 1523
>
> That is fine with me. If you'd like to fold that into your proposal,
> I'd have no objection.
>
> Gord.
>
> On 8/24/2011 10:45 PM, Bresticker, Shalom wrote:
> > I prefer "If the elements have the same value" to the current "If the
> elements match".
> >
> > Shalom
> >
> >> -----Original Message-----
> >> From: Gordon Vreugdenhil [mailto:gordonv@model.com]
> >> Sent: Thursday, August 25, 2011 2:09 AM
> >> To: Arturo Salz
> >> Cc: Steven Sharp; Bresticker, Shalom; SV-BC
> >> Subject: Re: [sv-bc] RE: Mantis 1523
> >>
> >>
> >> But the element types might need case equality to get
> >> the right behavior -- a struct containing logics needs to
> >> do case equality on the logic elements. There really
> >> is no well defined term for "the element wise values
> >> are all exactly the same" but that is definitely the intent.
> >>
> >> Gord
> >>
> >> On 8/24/2011 3:22 PM, Arturo Salz wrote:
> >>> Good point. I don't believe case equality is warranted since that
> sentence
> >> defines the semantics precisely for the types that cannot be resolved -
> and
> >> do not support case equality.
> >>> Arturo
> >>>
> >>> -----Original Message-----
> >>> From: Steven Sharp [mailto:sharp@cadence.com]
> >>> Sent: Wednesday, August 24, 2011 3:17 PM
> >>> To: Arturo Salz; Bresticker, Shalom; SV-BC
> >>> Subject: RE: Mantis 1523
> >>>
> >>> Agreed.
> >>>
> >>> One possible problem with talking about the elements being equal is that
> >> there are multiple equality operators in SV. Does "equal" mean logical
> >> equality or case equality? This may not be a real problem if case
> equality
> >> doesn't apply to any of the operand types being described here.
> >>>
> >>> -----Original Message-----
> >>> From: owner-sv-bc@eda.org [mailto:owner-sv-bc@eda.org] On Behalf Of
> Arturo
> >> Salz
> >>> Sent: Wednesday, August 24, 2011 5:50 PM
> >>> To: Bresticker, Shalom; SV-BC
> >>> Subject: [sv-bc] RE: Mantis 1523
> >>>
> >>> Shalom,
> >>>
> >>> That particular sentence defined the semantics of the ternary operator
> >> when it needs to merge two objects of non-integral data-type, such as
> real
> >> or string. Since in those cases performing a bit-wise resolution is not
> >> possible (or well defined), the LRM calls for comparing the two elements
> >> (using equality) and return the default-uninitialized value if they do
> not
> >> "match". Possibly a better language would be "if the elements are not
> >> equal".
> >>> Arturo
> >>>
> >>> -----Original Message-----
> >>> From: owner-sv-bc@eda.org [mailto:owner-sv-bc@eda.org] On Behalf Of
> >> Bresticker, Shalom
> >>> Sent: Wednesday, August 24, 2011 1:58 PM
> >>> To: SV-BC
> >>> Subject: [sv-bc] Mantis 1523
> >>>
> >>> Hi,
> >>>
> >>> Does anyone have an answer to my question below?
> >>>
> >>> Thanks,
> >>> Shalom
> >>>
> >>>> -----Original Message-----
> >>>> From: owner-sv-bc@eda.org [mailto:owner-sv-bc@eda.org] On Behalf Of
> >>>> Bresticker, Shalom
> >>>> Sent: Sunday, August 21, 2011 11:59 AM
> >>>> To: Maidment, Matthew R; SV-BC
> >>>> Subject: [sv-bc] RE: email vote: respond by Monday Aug 29
> >>>>
> >>>> Re 1523,
> >>>>
> >>>> the last paragraph, which is not being changed by this proposal, says,
> >>>>
> >>>> "For nonintegral and aggregate expressions, if cond_predicate evaluates
> >> to
> >>>> an ambiguous value, then:
> >>>> ..
> >>>> - Otherwise, both the first expression and second expression shall be
> >>>> evaluated, and their results shall be combined element by element. If
> the
> >>>> elements match, the element is returned. If they do not match, then the
> >>>> default-uninitialized value for that element's type shall be returned."
> >>>>
> >>>> The meaning of this is not clear to me.
> >>>> Can someone clarify it?
> >>>> In particular, what does "match" mean here?
> > ---------------------------------------------------------------------
> > Intel Israel (74) Limited
> >
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>
> --
> --------------------------------------------------------------------
> Gordon Vreugdenhil 503-685-0808
> Model Technology (Mentor Graphics) gordonv@model.com

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