Topic: type_traits: is_less_than_comparable and friends


Author: "dgutson ." <danielgutson@gmail.com>
Date: Tue, 26 Jan 2016 14:21:04 -0300
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Is the addition of types' comparing properties already planned?

I am aware that boost has something like this in its type traits
library (e.g. http://www.boost.org/doc/libs/master/libs/type_traits/doc/htm=
l/boost_typetraits/reference/has_less.html
)
but I could not find anything equivalent for WG21.

Thanks,

   Daniel.

--=20
Who=E2=80=99s got the sweetest disposition?
One guess, that=E2=80=99s who?
Who=E2=80=99d never, ever start an argument?
Who never shows a bit of temperament?
Who's never wrong but always right?
Who'd never dream of starting a fight?
Who get stuck with all the bad luck?

--=20

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Author: "dgutson ." <danielgutson@gmail.com>
Date: Fri, 29 Jan 2016 14:04:04 -0300
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(ping)

On Tue, Jan 26, 2016 at 2:21 PM, dgutson . <danielgutson@gmail.com> wrote:
> Is the addition of types' comparing properties already planned?
>
> I am aware that boost has something like this in its type traits
> library (e.g. http://www.boost.org/doc/libs/master/libs/type_traits/doc/h=
tml/boost_typetraits/reference/has_less.html
> )
> but I could not find anything equivalent for WG21.
>
> Thanks,
>
>    Daniel.
>
> --
> Who=E2=80=99s got the sweetest disposition?
> One guess, that=E2=80=99s who?
> Who=E2=80=99d never, ever start an argument?
> Who never shows a bit of temperament?
> Who's never wrong but always right?
> Who'd never dream of starting a fight?
> Who get stuck with all the bad luck?



--=20
Who=E2=80=99s got the sweetest disposition?
One guess, that=E2=80=99s who?
Who=E2=80=99d never, ever start an argument?
Who never shows a bit of temperament?
Who's never wrong but always right?
Who'd never dream of starting a fight?
Who get stuck with all the bad luck?

--=20

---=20
You received this message because you are subscribed to the Google Groups "=
ISO C++ Standard - Future Proposals" group.
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als/.

.


Author: Nevin Liber <nevin@cplusplusguy.com>
Date: Fri, 29 Jan 2016 12:17:20 -0600
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On 29 January 2016 at 11:04, dgutson . <danielgutson@gmail.com> wrote:

> (ping)
>
> On Tue, Jan 26, 2016 at 2:21 PM, dgutson . <danielgutson@gmail.com> wrote:
> > Is the addition of types' comparing properties already planned?
> >
> > I am aware that boost has something like this in its type traits
> > library (e.g.
> http://www.boost.org/doc/libs/master/libs/type_traits/doc/html/boost_typetraits/reference/has_less.html
> > )
> > but I could not find anything equivalent for WG21.
>

AFAIK, no one has proposed it.  I think it would be a great addition.

--
 Nevin ":-)" Liber  <mailto:nevin@cplusplusguy.com <nevin@eviloverlord.com>>
+1-847-691-1404

--

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--089e011768e720a546052a7d0e24
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">On 29 January 2016 at 11:04, dgutson . <span dir=3D"ltr">&=
lt;<a href=3D"mailto:danielgutson@gmail.com" target=3D"_blank">danielgutson=
@gmail.com</a>&gt;</span> wrote:<br><div class=3D"gmail_extra"><div class=
=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex">(ping)<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
On Tue, Jan 26, 2016 at 2:21 PM, dgutson . &lt;<a href=3D"mailto:danielguts=
on@gmail.com">danielgutson@gmail.com</a>&gt; wrote:<br>
&gt; Is the addition of types&#39; comparing properties already planned?<br=
>
&gt;<br>
&gt; I am aware that boost has something like this in its type traits<br>
&gt; library (e.g. <a href=3D"http://www.boost.org/doc/libs/master/libs/typ=
e_traits/doc/html/boost_typetraits/reference/has_less.html" rel=3D"noreferr=
er" target=3D"_blank">http://www.boost.org/doc/libs/master/libs/type_traits=
/doc/html/boost_typetraits/reference/has_less.html</a><br>
&gt; )<br>
&gt; but I could not find anything equivalent for WG21.<br></div></div></bl=
ockquote><div><br></div><div>AFAIK, no one has proposed it.=C2=A0 I think i=
t would be a great addition.<br clear=3D"all"><div><br></div>-- <br><div cl=
ass=3D"gmail_signature"><div dir=3D"ltr">=C2=A0Nevin &quot;:-)&quot; Liber=
=C2=A0 &lt;mailto:<a href=3D"mailto:nevin@eviloverlord.com" target=3D"_blan=
k">nevin@cplusplusguy.com</a>&gt;=C2=A0 +1-847-691-1404<br></div></div>
</div></div></div>
</div>

<p></p>

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.


Author: "dgutson ." <danielgutson@gmail.com>
Date: Mon, 8 Feb 2016 17:28:25 -0300
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On Fri, Jan 29, 2016 at 3:17 PM, Nevin Liber <nevin@cplusplusguy.com> wrote=
:
> On 29 January 2016 at 11:04, dgutson . <danielgutson@gmail.com> wrote:
>>
>> (ping)
>>
>> On Tue, Jan 26, 2016 at 2:21 PM, dgutson . <danielgutson@gmail.com> wrot=
e:
>> > Is the addition of types' comparing properties already planned?
>> >
>> > I am aware that boost has something like this in its type traits
>> > library (e.g.
>> > http://www.boost.org/doc/libs/master/libs/type_traits/doc/html/boost_t=
ypetraits/reference/has_less.html
>> > )
>> > but I could not find anything equivalent for WG21.
>
>
> AFAIK, no one has proposed it.  I think it would be a great addition.

BTW, sorry for re-using the thread: what about querying to tell
whether a type exists or not? (E.g. apply it to intptr_t).


>
> --
>  Nevin ":-)" Liber  <mailto:nevin@cplusplusguy.com>  +1-847-691-1404
>
> --
>
> ---
> You received this message because you are subscribed to the Google Groups
> "ISO C++ Standard - Future Proposals" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to std-proposals+unsubscribe@isocpp.org.
> To post to this group, send email to std-proposals@isocpp.org.
> Visit this group at
> https://groups.google.com/a/isocpp.org/group/std-proposals/.



--=20
Who=E2=80=99s got the sweetest disposition?
One guess, that=E2=80=99s who?
Who=E2=80=99d never, ever start an argument?
Who never shows a bit of temperament?
Who's never wrong but always right?
Who'd never dream of starting a fight?
Who get stuck with all the bad luck?

--=20

---=20
You received this message because you are subscribed to the Google Groups "=
ISO C++ Standard - Future Proposals" group.
To unsubscribe from this group and stop receiving emails from it, send an e=
mail to std-proposals+unsubscribe@isocpp.org.
To post to this group, send email to std-proposals@isocpp.org.
Visit this group at https://groups.google.com/a/isocpp.org/group/std-propos=
als/.

.