[boost] [Range] contains() for unsorted ranges?

Subject: [boost] [Range] contains() for unsorted ranges?
From: Albert Yiamakis (vkicefire_at_[hidden])
Date: 2014-04-06 08:49:45

Hello,

Wouldn't the library be well served by providing a contains() algorithm
- with the same overloads/versions as find - for unsorted ranges?
Surely, having to test against the range's end ruins the otherwise
expressive syntax offered; especially when adaptors are involved and one
has to test against the adapted range's end.
Perhaps I am missing an obvious reason why not?

Albert

-- 
kojirion.github.io