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Remove the constness of the underlying array used by a
std::initializer_list so that elements can be moved from it.

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<div dir=3D"ltr"><span>Remove the constness of the underlying array used by=
 a std::initializer_list so that elements can be moved from it.</span></div=
>

<p></p>

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It's not that easy unfortunately. This has been already proposed, so you
might want to look up any previous discussion.

The biggest against: It breaks ABI.

On Wed, Feb 27, 2019, 5:12 PM gogu <valeriu.smerica@my.fmi.unibuc.ro> wrote:

> Remove the constness of the underlying array used by a
> std::initializer_list so that elements can be moved from it.
>
> --
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> .
>

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<div dir=3D"auto">It&#39;s not that easy unfortunately. This has been alrea=
dy proposed, so you might want to look up any previous discussion.<div dir=
=3D"auto"><br></div><div dir=3D"auto">The biggest against: It breaks ABI.</=
div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_at=
tr">On Wed, Feb 27, 2019, 5:12 PM gogu &lt;<a href=3D"mailto:valeriu.smeric=
a@my.fmi.unibuc.ro">valeriu.smerica@my.fmi.unibuc.ro</a>&gt; wrote:<br></di=
v><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:=
1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><span>Remove the constnes=
s of the underlying array used by a std::initializer_list so that elements =
can be moved from it.</span></div>

<p></p>

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sals/70a5d46b-8046-4588-a6aa-7dc4308d13bf%40isocpp.org</a>.<br>
</blockquote></div>

<p></p>

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P0065 <http://wg21.link/P0065> seems to be the most currently relevant
"movable initializer list" proposal. Its author says that the reason why we
still don't have movable initializer lists it that "the committee denies
that the problem is significant." (source
<https://www.reddit.com/r/cpp/comments/7a1o7f/why_does_stdinitializer_list_prevents_using/dp6jvlw>).
This doesn't mean we should give up, but it does suggest that we might want
to focus effort on showing why this would be useful rather than just coming
up with more proposals.



On Wed, Feb 27, 2019 at 11:20 AM Nicolas Lesser <blitzrakete@gmail.com>
wrote:

> It's not that easy unfortunately. This has been already proposed, so you
> might want to look up any previous discussion.
>
> The biggest against: It breaks ABI.
>
> On Wed, Feb 27, 2019, 5:12 PM gogu <valeriu.smerica@my.fmi.unibuc.ro>
> wrote:
>
>> Remove the constness of the underlying array used by a
>> std::initializer_list so that elements can be moved from it.
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "ISO C++ Standard - Future Proposals" group.
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>> email to std-proposals+unsubscribe@isocpp.org.
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>> https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/70a5d46b-8046-4588-a6aa-7dc4308d13bf%40isocpp.org
>> <https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/70a5d46b-8046-4588-a6aa-7dc4308d13bf%40isocpp.org?utm_medium=email&utm_source=footer>
>> .
>>
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> <https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/CALmDwq0mOcQdYdhXX-TiL-ZZV3J8JMDC73r1fYVQ13oUKtVmcQ%40mail.gmail.com?utm_medium=email&utm_source=footer>
> .
>


--
*Brian Bi*

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<div dir=3D"ltr"><div><font face=3D"arial, helvetica, sans-serif"><a href=
=3D"http://wg21.link/P0065">P0065</a>=C2=A0seems to be the most currently r=
elevant &quot;movable initializer list&quot; proposal. Its author says that=
 the reason why we still don&#39;t have movable initializer lists it that &=
quot;<span style=3D"color:rgb(26,26,27)">the committee denies that the prob=
lem is significant.&quot; (<a href=3D"https://www.reddit.com/r/cpp/comments=
/7a1o7f/why_does_stdinitializer_list_prevents_using/dp6jvlw" style=3D"">sou=
rce</a>). This doesn&#39;t mean we should give up, but it does suggest that=
 we might want to focus effort on showing why this would be useful rather t=
han just coming up with more proposals.</span></font></div><div dir=3D"ltr"=
><br></div><div dir=3D"ltr"><br></div></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Wed, Feb 27, 2019 at 11:20 AM Nico=
las Lesser &lt;<a href=3D"mailto:blitzrakete@gmail.com">blitzrakete@gmail.c=
om</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margi=
n:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex=
"><div dir=3D"auto">It&#39;s not that easy unfortunately. This has been alr=
eady proposed, so you might want to look up any previous discussion.<div di=
r=3D"auto"><br></div><div dir=3D"auto">The biggest against: It breaks ABI.<=
/div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_a=
ttr">On Wed, Feb 27, 2019, 5:12 PM gogu &lt;<a href=3D"mailto:valeriu.smeri=
ca@my.fmi.unibuc.ro" target=3D"_blank">valeriu.smerica@my.fmi.unibuc.ro</a>=
&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px =
0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div=
 dir=3D"ltr"><span>Remove the constness of the underlying array used by a s=
td::initializer_list so that elements can be moved from it.</span></div>

<p></p>

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 target=3D"_blank">https://groups.google.com/a/isocpp.org/d/msgid/std-propo=
sals/70a5d46b-8046-4588-a6aa-7dc4308d13bf%40isocpp.org</a>.<br>
</blockquote></div>

<p></p>

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 target=3D"_blank">https://groups.google.com/a/isocpp.org/d/msgid/std-propo=
sals/CALmDwq0mOcQdYdhXX-TiL-ZZV3J8JMDC73r1fYVQ13oUKtVmcQ%40mail.gmail.com</=
a>.<br>
</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"=
 class=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><font col=
or=3D"#c0c0c0"><i>Brian Bi</i></font><br><div></div><div></div><div></div><=
/div></div></div></div>

<p></p>

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DTg5Eq0yWPRFkcnv5MSf-DVgW0zJMBaU%3DUmg%40mail.gmail.com</a>.<br />

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