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One typo:  is to use ADL to perform an
unqualified *called* to

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<div dir="ltr">One typo: &nbsp;is to use ADL to perform an&nbsp;<div>unqualified *called* to</div></div>

<p></p>

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On 8 October 2014 06:19, Olaf van der Spek <olafvdspek@gmail.com> wrote:

> One typo:  is to use ADL to perform an
> unqualified *called* to
>

Good catch.  Thanks!
 Nevin :-)
--
 Nevin ":-)" Liber  <mailto:nevin@eviloverlord.com>  (847) 691-1404

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<div dir=3D"ltr">On 8 October 2014 06:19, Olaf van der Spek <span dir=3D"lt=
r">&lt;<a href=3D"mailto:olafvdspek@gmail.com" target=3D"_blank">olafvdspek=
@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"><div dir=3D"ltr">One typo: =
=C2=A0is to use ADL to perform an=C2=A0<div>unqualified *called* to</div></=
div></blockquote><div><br></div><div>Good catch.=C2=A0 Thanks!</div><div>=
=C2=A0Nevin :-)</div></div>-- <br>=C2=A0Nevin &quot;:-)&quot; Liber=C2=A0 &=
lt;mailto:<a href=3D"mailto:nevin@eviloverlord.com" target=3D"_blank">nevin=
@eviloverlord.com</a>&gt;=C2=A0 <a href=3D"tel:%28847%29%20691-1404" value=
=3D"+18476911404" target=3D"_blank">(847) 691-1404</a>
</div></div>

<p></p>

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Boost has a get_pointer function for raw pointers and boost/std managed
pointers already. Perhaps it should be mentioned.

is_contiguous_iterator being defined in terms of to_pointer compiling thus
doesn't seem like such a good idea.

Op donderdag 9 oktober 2014 10:35:33 UTC+2 schreef Nevin ":-)" Liber:
>
> On 8 October 2014 06:19, Olaf van der Spek <olafv...@gmail.com
> <javascript:>> wrote:
>
>> One typo:  is to use ADL to perform an
>> unqualified *called* to
>>
>
> Good catch.  Thanks!
>  Nevin :-)
> --
>  Nevin ":-)" Liber  <mailto:ne...@eviloverlord.com <javascript:>>  (847)
> 691-1404
>

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<div dir=3D"ltr">Boost has a get_pointer function for raw pointers and boos=
t/std managed pointers already. Perhaps it should be mentioned.&nbsp;<div><=
br></div><div>is_contiguous_iterator being defined in terms of to_pointer c=
ompiling thus doesn't seem like such a good idea.<br><br>Op donderdag 9 okt=
ober 2014 10:35:33 UTC+2 schreef Nevin ":-)" Liber:<blockquote class=3D"gma=
il_quote" style=3D"margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid=
;padding-left: 1ex;"><div dir=3D"ltr">On 8 October 2014 06:19, Olaf van der=
 Spek <span dir=3D"ltr">&lt;<a href=3D"javascript:" target=3D"_blank" gdf-o=
bfuscated-mailto=3D"rM_yMn2tOaAJ" onmousedown=3D"this.href=3D'javascript:';=
return true;" onclick=3D"this.href=3D'javascript:';return true;">olafv...@g=
mail.com</a>&gt;</span> wrote:<br><div><div class=3D"gmail_quote"><blockquo=
te class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc so=
lid;padding-left:1ex"><div dir=3D"ltr">One typo: &nbsp;is to use ADL to per=
form an&nbsp;<div>unqualified *called* to</div></div></blockquote><div><br>=
</div><div>Good catch.&nbsp; Thanks!</div><div>&nbsp;Nevin :-)</div></div>-=
- <br>&nbsp;Nevin ":-)" Liber&nbsp; &lt;mailto:<a href=3D"javascript:" targ=
et=3D"_blank" gdf-obfuscated-mailto=3D"rM_yMn2tOaAJ" onmousedown=3D"this.hr=
ef=3D'javascript:';return true;" onclick=3D"this.href=3D'javascript:';retur=
n true;">ne...@eviloverlord.com</a><wbr>&gt;&nbsp; <a value=3D"+18476911404=
">(847) 691-1404</a>
</div></div>
</blockquote></div></div>

<p></p>

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On 9 October 2014 02:01, Olaf van der Spek <olafvdspek@gmail.com> wrote:

> is_contiguous_iterator being defined in terms of to_pointer compiling thus
> doesn't seem like such a good idea.
>

It's what LEWG was in favor of in Issaquah...
--
 Nevin ":-)" Liber  <mailto:nevin@eviloverlord.com>  (847) 691-1404

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<div dir=3D"ltr">On 9 October 2014 02:01, Olaf van der Spek <span dir=3D"lt=
r">&lt;<a href=3D"mailto:olafvdspek@gmail.com" target=3D"_blank">olafvdspek=
@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"><div dir=3D"ltr"><div>is_co=
ntiguous_iterator being defined in terms of to_pointer compiling thus doesn=
&#39;t seem like such a good idea.<br></div></div></blockquote><div><br></d=
iv><div>It&#39;s what LEWG was in favor of in Issaquah...</div></div>-- <br=
>=C2=A0Nevin &quot;:-)&quot; Liber=C2=A0 &lt;mailto:<a href=3D"mailto:nevin=
@eviloverlord.com" target=3D"_blank">nevin@eviloverlord.com</a>&gt;=C2=A0 <=
a href=3D"tel:%28847%29%20691-1404" value=3D"+18476911404" target=3D"_blank=
">(847) 691-1404</a>
</div></div>

<p></p>

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.

I know, but what were there arguments in relation to boost's get_pointer?

On Thu, Oct 9, 2014 at 6:25 PM, Nevin Liber <nevin@eviloverlord.com> wrote:
> On 9 October 2014 02:01, Olaf van der Spek <olafvdspek@gmail.com> wrote:
>>
>> is_contiguous_iterator being defined in terms of to_pointer compiling thus
>> doesn't seem like such a good idea.
>
>
> It's what LEWG was in favor of in Issaquah...
> --
>  Nevin ":-)" Liber  <mailto:nevin@eviloverlord.com>  (847) 691-1404
>
> --
>
> ---
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On 9 October 2014 09:28, Olaf van der Spek <olafvdspek@gmail.com> wrote:

> I know, but what were there arguments in relation to boost's get_pointer?
>

I wasn't in Issaquah (or I would have voted against that).  According to
the LEWG wiki, it was Eric Niebler's suggestion, but there are no other
notes on it, other than the vote (6 weakly in favor, 5 neutral).

Anyway, I'll add Boost's get_pointer to the document, and bring it up
during the discussion.
--
 Nevin ":-)" Liber  <mailto:nevin@eviloverlord.com>  (847) 691-1404

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<div dir=3D"ltr"><div class=3D"gmail_extra">On 9 October 2014 09:28, Olaf v=
an der Spek <span dir=3D"ltr">&lt;<a href=3D"mailto:olafvdspek@gmail.com" t=
arget=3D"_blank">olafvdspek@gmail.com</a>&gt;</span> wrote:<br><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"><div id=3D":5ve" class=3D"a=
3s" style=3D"overflow:hidden">I know, but what were there arguments in rela=
tion to boost&#39;s get_pointer?<br>
<div></div></div></blockquote></div><br>I wasn&#39;t in Issaquah (or I woul=
d have voted against that).=C2=A0 According to the LEWG wiki, it was Eric N=
iebler&#39;s suggestion, but there are no other notes on it, other than the=
 vote (6 weakly in favor, 5 neutral).<br><br clear=3D"all"><div>Anyway, I&#=
39;ll add Boost&#39;s get_pointer to the document, and bring it up during t=
he discussion.</div>-- <br>=C2=A0Nevin &quot;:-)&quot; Liber=C2=A0 &lt;mail=
to:<a href=3D"mailto:nevin@eviloverlord.com" target=3D"_blank">nevin@evilov=
erlord.com</a>&gt;=C2=A0 (847) 691-1404
</div></div>

<p></p>

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--f46d0444022ee036d2050500126b--

.

On 10/09/2014 06:38 PM, Nevin Liber wrote:
> On 9 October 2014 09:28, Olaf van der Spek <olafvdspek@gmail.com <mailto:olafvdspek@gmail.com>> wrote:
>
>     I know, but what were there arguments in relation to boost's get_pointer?
>
>
> I wasn't in Issaquah (or I would have voted against that).  According to the LEWG wiki, it was Eric Niebler's suggestion, but there are no other notes on it, other than the vote (6 weakly in favor, 5 neutral).
>
> Anyway, I'll add Boost's get_pointer to the document, and bring it up during the discussion.

My suggestion would be not to refer to a global get_pointer() or to_pointer(),
but add a member to std::iterator_traits<>.  For the specialization for C-style
pointers, this is essentially a no-op.  For the generic template, which defers
to members of the iterator class itself, it seems natural to include
the to_pointer() as a static member of the iterator class and let
std::iterator_traits<> redirect there.

I don't think there's a third choice for an iterator beyond C-style pointer
and a class.

Jens

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On 9 October 2014 14:07, Jens Maurer <Jens.Maurer@gmx.net> wrote:

> On 10/09/2014 06:38 PM, Nevin Liber wrote:
> > On 9 October 2014 09:28, Olaf van der Spek <olafvdspek@gmail.com
> <mailto:olafvdspek@gmail.com>> wrote:
> >
> >     I know, but what were there arguments in relation to boost's
> get_pointer?
> >
> >
> > I wasn't in Issaquah (or I would have voted against that).  According to
> the LEWG wiki, it was Eric Niebler's suggestion, but there are no other
> notes on it, other than the vote (6 weakly in favor, 5 neutral).
> >
> > Anyway, I'll add Boost's get_pointer to the document, and bring it up
> during the discussion.
>
> My suggestion would be not to refer to a global get_pointer() or
> to_pointer(),
> but add a member to std::iterator_traits<>.  For the specialization for
> C-style
> pointers, this is essentially a no-op.  For the generic template, which
> defers
> to members of the iterator class itself, it seems natural to include
> the to_pointer() as a static member of the iterator class and let
> std::iterator_traits<> redirect there.
>
> I don't think there's a third choice for an iterator beyond C-style pointer
> and a class.
>

Like I said, I'm (so far) fine with that mechanism.

However, if I'm reading the Issaquah wiki correctly, the guidance from LEWG
is to tie the trait asserting an iterator is contiguous with the existence
of pointer_from.  While I don't agree with the position, the guidance is
clear, as no one voted against it.
--
 Nevin ":-)" Liber  <mailto:nevin@eviloverlord.com>  (847) 691-1404

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<div dir=3D"ltr">On 9 October 2014 14:07, Jens Maurer <span dir=3D"ltr">&lt=
;<a href=3D"mailto:Jens.Maurer@gmx.net" target=3D"_blank">Jens.Maurer@gmx.n=
et</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 .8ex;border-=
left:1px #ccc solid;padding-left:1ex">On 10/09/2014 06:38 PM, Nevin Liber w=
rote:<br>
<span class=3D"">&gt; On 9 October 2014 09:28, Olaf van der Spek &lt;<a hre=
f=3D"mailto:olafvdspek@gmail.com">olafvdspek@gmail.com</a> &lt;mailto:<a hr=
ef=3D"mailto:olafvdspek@gmail.com">olafvdspek@gmail.com</a>&gt;&gt; wrote:<=
br>
&gt;<br>
&gt;=C2=A0 =C2=A0 =C2=A0I know, but what were there arguments in relation t=
o boost&#39;s get_pointer?<br>
&gt;<br>
&gt;<br>
&gt; I wasn&#39;t in Issaquah (or I would have voted against that).=C2=A0 A=
ccording to the LEWG wiki, it was Eric Niebler&#39;s suggestion, but there =
are no other notes on it, other than the vote (6 weakly in favor, 5 neutral=
).<br>
&gt;<br>
&gt; Anyway, I&#39;ll add Boost&#39;s get_pointer to the document, and brin=
g it up during the discussion.<br>
<br>
</span>My suggestion would be not to refer to a global get_pointer() or to_=
pointer(),<br>
but add a member to std::iterator_traits&lt;&gt;.=C2=A0 For the specializat=
ion for C-style<br>
pointers, this is essentially a no-op.=C2=A0 For the generic template, whic=
h defers<br>
to members of the iterator class itself, it seems natural to include<br>
the to_pointer() as a static member of the iterator class and let<br>
std::iterator_traits&lt;&gt; redirect there.<br>
<br>
I don&#39;t think there&#39;s a third choice for an iterator beyond C-style=
 pointer<br>
and a class.<br></blockquote><div><br></div><div>Like I said, I&#39;m (so f=
ar) fine with that mechanism.</div><div><br></div><div>However, if I&#39;m =
reading the Issaquah wiki correctly, the guidance from LEWG is to tie the t=
rait asserting an iterator is contiguous with the existence of pointer_from=
..=C2=A0 While I don&#39;t agree with the position, the guidance is clear, a=
s no one voted against it.</div></div>-- <br>=C2=A0Nevin &quot;:-)&quot; Li=
ber=C2=A0 &lt;mailto:<a href=3D"mailto:nevin@eviloverlord.com" target=3D"_b=
lank">nevin@eviloverlord.com</a>&gt;=C2=A0 (847) 691-1404
</div></div>

<p></p>

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.

On 10/10/2014 08:27 AM, Nevin Liber wrote:
> However, if I'm reading the Issaquah wiki correctly, the guidance from LE=
WG is to tie the trait asserting an iterator is contiguous with the existen=
ce of pointer_from.  While I don't agree with the position, the guidance is=
 clear, as no one voted against it.

Please make sure I'm in the room when this gets discussed again in LEWG.

Jens

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On 10 October 2014 22:21, Jens Maurer <Jens.Maurer@gmx.net> wrote:

> On 10/10/2014 08:27 AM, Nevin Liber wrote:
> > However, if I'm reading the Issaquah wiki correctly, the guidance from
> LEWG is to tie the trait asserting an iterator is contiguous with the
> existence of pointer_from.  While I don't agree with the position, the
> guidance is clear, as no one voted against it.
>
> Please make sure I'm in the room when this gets discussed again in LEWG.
>

Will do.
 Nevin :-)
--
 Nevin ":-)" Liber  <mailto:nevin@eviloverlord.com>  (847) 691-1404

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<div dir=3D"ltr">On 10 October 2014 22:21, Jens Maurer <span dir=3D"ltr">&l=
t;<a href=3D"mailto:Jens.Maurer@gmx.net" target=3D"_blank">Jens.Maurer@gmx.=
net</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 .8ex;border=
-left:1px #ccc solid;padding-left:1ex"><span class=3D"">On 10/10/2014 08:27=
 AM, Nevin Liber wrote:<br>
&gt; However, if I&#39;m reading the Issaquah wiki correctly, the guidance =
from LEWG is to tie the trait asserting an iterator is contiguous with the =
existence of pointer_from.=C2=A0 While I don&#39;t agree with the position,=
 the guidance is clear, as no one voted against it.<br>
<br>
</span>Please make sure I&#39;m in the room when this gets discussed again =
in LEWG.<br></blockquote><div><br></div><div>Will do.</div><div>=C2=A0Nevin=
 :-)</div></div>-- <br>=C2=A0Nevin &quot;:-)&quot; Liber=C2=A0 &lt;mailto:<=
a href=3D"mailto:nevin@eviloverlord.com" target=3D"_blank">nevin@eviloverlo=
rd.com</a>&gt;=C2=A0 (847) 691-1404
</div></div>

<p></p>

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