Subject: Re: [boost] [range] Best way to count the elements in a filtered range?
From: Nathan Crookston (nathan.crookston_at_[hidden])
Date: 2013-06-19 11:03:14
Gonzalo Brito Gadeschi wrote:
> Someone suggested to use boost::size in the other thread, but size does
> boost::end(rng) - boost::begin(rng)
> which is not the number of elements in the filtered range.
Try boost::distance(rng | filtered(pred)). Size shouldn't even compile,
since it requires random access, and a filtered range cannot be random
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