Re: [boost] [Review:Algorithms] is_ordered behaviour for singleton input, and name

Consider renaming *_of_val to *_equal. So: all_equal none_equal any_equal one_equal Saying _of_val doesn't actually say anything about relation used in the algorithm. Maybe *_equal_to so as not to imply that all_equal means "all values are the same". You might also consider renaming the header to "quantifier.hpp" since all of these algorithms quantify some property of a sequence. EoP also refers to these as quantifiers, IIRC. I left the book at work so I can't check. One a side note, I like the addition of one_of to this group. The implementation is appreciably concise.