Re: Can lambda expressions have const-qualifiers?

From:

Frank Birbacher <bloodymir.crap@gmx.net>

Newsgroups:

comp.lang.c++.moderated

Date:

Sun, 20 Jan 2013 21:16:49 CST

Message-ID:

<am2tn0Flce9U1@mid.dfncis.de>

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Hi!

Am 19.01.13 16:22, schrieb Daniel Kr?gler:

Theoretically this would be possible. I'm not so sure that this is
really a sufficient reason to extend the rules in that way,
though.

Sometimes I wish I could move-initialize the captured values,
especially when working with std::function like in:

typedef std::function<void(std::string const&)> Callback;

Callback twice(Callback c)
{
    //will copy "c", but I want to move it into the lambda:
    return [c](std::string const& s){
        c(s); c(s); // call twice
    };
}

The std::function does not do reference counting, does it? QOI?

Frank
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