Re: [Boost-users] result_of tutorial

From: Peter Dimov (pdimov_at_[hidden])
Date: 2005-03-15 08:41:45

Ian McCulloch wrote:
> I'm sure this has been asked before, but searching the archives I
> cannot find anything.  Is there some tutorial material on result_of
> anywhere?  The boost documentation simply points to n1454, which
> doesn't contain much in the way of examples, and the TR1 document
> (n1647) which has no examples at all.

Mini-result_of-tutorial:

Q: What do I write in the space marked ??? below:

template<class F, class A1, ..., class An> ??? apply( F f, A1 & a1, ..., An 
& an )
{
    return f( a1, ..., an );
}

A:

typename result_of<F(A1&, ..., An&)>::type.