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From: Olaf van der Spek <olafvdspek@gmail.com>
Newsgroups: gmane.comp.lang.c++.isocpp.proposals
Subject: Re: optional<T>, one more value or two states
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Op vrijdag 25 januari 2013 21:20:36 UTC+1 schreef Nicol Bolas het volgende:

> And can be NULL.
>
> No, it can be *empty*, not NULL. `optional` is a container.
>

Is it?
The C++ container concept has a lot of requirements that optional doesn't 
meet.
 I think using operator* is natural.

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<span style=3D"font-size: 13px;">Op vrijdag 25 januari 2013 21:20:36 UTC+1 =
schreef Nicol Bolas het volgende:</span><br><blockquote class=3D"gmail_quot=
e" style=3D"margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;paddin=
g-left: 1ex;"><span style=3D"font-size: 13px;">And can be NULL.</span><br><=
div><br>No, it can be <i>empty</i>, not NULL. `optional` is a container.</d=
iv></blockquote><div><br></div><div>Is it?</div><div>The C++ container conc=
ept has a lot of requirements that optional doesn't meet.</div><div>&nbsp;I=
 think using operator* is natural.</div>

<p></p>

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