Re: [boost] Boost.RangeEx: contains?

Eric Niebler wrote:

And that's my point exactly. I feel that this:

boost::find( rng | filtered(pred) )

is more obscure than this:

boost::find_if( rng, pred );

Not only that, but I presume their return types are different, too. The first would return filtered iterators, the second the original iterators. Isn't that right?

Indeed. Which is why I suggested that boost::find return a [it, end[ range, rather than just the `it' iterator. That way you can do boost::empty(boost::find(rng | filtered(pred))); instead of auto rng2 = rng | filtered(pred); boost::find(rng2) != boost::end(rng2);