Hi, perhaps instead of static the default keyword would be more
appropriate as it will suggest that object will get initialized to its
default values?

On 6/23/13, Johannes Schaub <schaub.johannes@googlemail.com> wrote:
>
>
> On Sunday, June 23, 2013 2:01:35 PM UTC+2, Johannes Schaub wrote:
>>
>>
>>
>> (Thanks to Xeo for proposing "static" to abuse for this).
>>
>
>  Oops. Looks like I confused those nick names. FredOverflow proposed the
> abuse: http://chat.stackoverflow.com/transcript/message/10161711#10161711
>
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.

2013/6/24 Arthur Tchaikovsky <atch.cpp@gmail.com>:
> Hi, perhaps instead of static the default keyword would be more
> appropriate as it will suggest that object will get initialized to its
> default values?
>

Not necessarily

    struct HelperStruct {
      A(Manager *m)
        :static A{m->factory(), m->layouter()} {
        m->prepare();
      }

      shared_ptr<Factory> factory;
      shared_ptr<Factory> layouter;
    };

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.

But if you doing something like your last example then the whole point
of having mechanizm of let's call it here "nullifying" object is
pointless, because you can already achieve what you've just did in
your last example, with "regular" ctors, or am I missing something?

On 6/24/13, Johannes Schaub <schaub.johannes@googlemail.com> wrote:
> 2013/6/24 Arthur Tchaikovsky <atch.cpp@gmail.com>:
>> Hi, perhaps instead of static the default keyword would be more
>> appropriate as it will suggest that object will get initialized to its
>> default values?
>>
>
> Not necessarily
>
>     struct HelperStruct {
>       A(Manager *m)
>         :static A{m->factory(), m->layouter()} {
>         m->prepare();
>       }
>
>       shared_ptr<Factory> factory;
>       shared_ptr<Factory> layouter;
>     };
>
> --
>
> ---
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> "ISO C++ Standard - Future Proposals" group.
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>
>

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.

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Can't you do this by delegating to a private constructor ?

    struct HelperStruct {
      A(Manager *m)
        : A{m->factory(), m->layouter()} {
        m->prepare();
      }

      shared_ptr<Factory> factory;
      shared_ptr<Factory> layouter:
    private:
      A(const shared_ptr<Factory>& factory_,  const shared_ptr<Factory>&
layouter_)
        : factory{factory_}, layouter{layouter_} {
      }
    }



On Monday, June 24, 2013 10:19:44 AM UTC+2, Johannes Schaub wrote:
>
> 2013/6/24 Arthur Tchaikovsky <atch...@gmail.com <javascript:>>:
> > Hi, perhaps instead of static the default keyword would be more
> > appropriate as it will suggest that object will get initialized to its
> > default values?
> >
>
> Not necessarily
>
>     struct HelperStruct {
>       A(Manager *m)
>         :static A{m->factory(), m->layouter()} {
>         m->prepare();
>       }
>
>       shared_ptr<Factory> factory;
>       shared_ptr<Factory> layouter;
>     };
>

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Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Can't you do this by delegating to a private constructor ?=
<br><br><div class=3D"prettyprint" style=3D"background-color: rgb(250, 250,=
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>factory</span><span style=3D"color: #660;" class=3D"styled-by-prettify">()=
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"color: #000;" class=3D"styled-by-prettify"> </span><span style=3D"color: #=
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yle=3D"color: #660;" class=3D"styled-by-prettify">-&gt;</span><span style=
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 style=3D"color: #660;" class=3D"styled-by-prettify">}</span><span style=3D=
"color: #000;" class=3D"styled-by-prettify"> <br>&nbsp;<br>&nbsp; &nbsp; &n=
bsp; shared_ptr</span><span style=3D"color: #660;" class=3D"styled-by-prett=
ify">&lt;</span><span style=3D"color: #606;" class=3D"styled-by-prettify">F=
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bsp; shared_ptr</span><span style=3D"color: #660;" class=3D"styled-by-prett=
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an style=3D"color: #000;" class=3D"styled-by-prettify"><br>&nbsp; &nbsp; </=
span><span style=3D"color: #008;" class=3D"styled-by-prettify">private</spa=
n><span style=3D"color: #660;" class=3D"styled-by-prettify">:</span><span s=
tyle=3D"color: #000;" class=3D"styled-by-prettify"><br>&nbsp; &nbsp; &nbsp;=
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/span><code class=3D"prettyprint"><span style=3D"color: #000;" class=3D"sty=
led-by-prettify">shared_ptr</span><span style=3D"color: #660;" class=3D"sty=
led-by-prettify">&lt;</span><span style=3D"color: #606;" class=3D"styled-by=
-prettify">Factory</span><span style=3D"color: #660;" class=3D"styled-by-pr=
ettify">&gt;</span><span style=3D"color: #000;" class=3D"styled-by-prettify=
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span style=3D"color: #606;" class=3D"styled-by-prettify">Factory</span><spa=
n style=3D"color: #660;" class=3D"styled-by-prettify">&gt;</span><span styl=
e=3D"color: #000;" class=3D"styled-by-prettify">&amp; layouter</span></code=
><span style=3D"color: #000;" class=3D"styled-by-prettify"></span></code><s=
pan style=3D"color: #000;" class=3D"styled-by-prettify"></span><span style=
=3D"color: #660;" class=3D"styled-by-prettify">_)</span><span style=3D"colo=
r: #000;" class=3D"styled-by-prettify"> <br>&nbsp; &nbsp; &nbsp; &nbsp; </s=
pan><span style=3D"color: #660;" class=3D"styled-by-prettify">:</span><span=
 style=3D"color: #000;" class=3D"styled-by-prettify"> factory{factory_}, la=
youter{layouter_}</span><span style=3D"color: #000;" class=3D"styled-by-pre=
ttify"> </span><span style=3D"color: #660;" class=3D"styled-by-prettify">{<=
/span><span style=3D"color: #000;" class=3D"styled-by-prettify"><br>&nbsp; =
&nbsp; &nbsp; </span><span style=3D"color: #660;" class=3D"styled-by-pretti=
fy">}</span><span style=3D"color: #000;" class=3D"styled-by-prettify"> <br>=
&nbsp; &nbsp; </span><span style=3D"color: #660;" class=3D"styled-by-pretti=
fy">}</span><span style=3D"color: #000;" class=3D"styled-by-prettify"><br><=
/span></div></code></div><br><br><br>On Monday, June 24, 2013 10:19:44 AM U=
TC+2, Johannes Schaub wrote:<blockquote class=3D"gmail_quote" style=3D"marg=
in: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">20=
13/6/24 Arthur Tchaikovsky &lt;<a href=3D"javascript:" target=3D"_blank" gd=
f-obfuscated-mailto=3D"qm8lqDpcMxwJ">atch...@gmail.com</a>&gt;:
<br>&gt; Hi, perhaps instead of static the default keyword would be more
<br>&gt; appropriate as it will suggest that object will get initialized to=
 its
<br>&gt; default values?
<br>&gt;
<br>
<br>Not necessarily
<br>
<br>&nbsp; &nbsp; struct HelperStruct {
<br>&nbsp; &nbsp; &nbsp; A(Manager *m)
<br>&nbsp; &nbsp; &nbsp; &nbsp; :static A{m-&gt;factory(), m-&gt;layouter()=
} {
<br>&nbsp; &nbsp; &nbsp; &nbsp; m-&gt;prepare();
<br>&nbsp; &nbsp; &nbsp; }
<br>
<br>&nbsp; &nbsp; &nbsp; shared_ptr&lt;Factory&gt; factory;
<br>&nbsp; &nbsp; &nbsp; shared_ptr&lt;Factory&gt; layouter;
<br>&nbsp; &nbsp; };
<br></blockquote></div>

<p></p>

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------=_Part_2423_18151591.1378032771277--

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