Re: [Boost-users] boost any questions and praise

Subject: Re: [Boost-users] boost any questions and praise
From: Peter Foelsche (foelsche_at_[hidden])
Date: 2010-02-02 11:13:49

>
> "Alan Tennant" <alan2here_at_[hidden]> wrote in message
> news:a557f5fb1002011639i142be9a0j29205e3ae643a6a9_at_mail.gmail.com...
> Thanks :¼)
>
> I can't test it until tomorrow but it looks great. This appears to take
> boost::any closer to boost::variant.
>
> << support is most useful. I presume they still cast back to the
> original object in the same way that boost::any does and any non
> standard object they contain that will work in a stream will now work
> inside the boost::any.
>
> Is this going to be an official update or just a branch for me.

I'm still unclear how to work with the people from boost.
Usually I'm posting something here and hope for an answer.

> Can I get a mention for inspiring the idea?
>
> Whats the empty struct for in main?

just for testing what happens if some class does not provide the << 
operator.

Peter

> Thanks for the info about Variant being faster. Especially with this
> new change it looks as if boost::any and boost::variant can be
> interchanged quite easily.
>
>
>
> On 1 February 2010 21:10, Peter Foelsche <foelsche_at_[hidden]> wrote:
>
> see attached
>
> Peter
> "Alan Tennant" <alan2here_at_[hidden]> wrote in message
> news:a557f5fb1001301059h1dfc32davd917a47d8c598a05_at_mail.gmail.com...
> Firstly. Thank you very much team Boost, it looks like it will be very
> useful and solve many of my coding problems.
>
> I can create an any
> boost::any a1;
>
> I can assign something to it
> a1 = string1;
>
> I can get it back out later
> std::cout<<any_cast<std::string>(a1);
>
> A boost any has a "type()" method.
>
> However this produced an error.
>
> std::cout<<any_cast<a1.type()>(a1);
>
>
>
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