[Boost-users] [multi_index] looking for "equal_to and less than"

Subject: [Boost-users] [multi_index] looking for "equal_to and less than"
From: isjk (isjk_at_[hidden])
Date: 2010-08-02 02:54:05

hi, 

I've got a structure like this,
struct peer
{
   int md5_; // unique key.
   int rank_;
   int degrees_;
};

now, I need a composite_key, it can find equal_to "md5" and less than
"rank_" and "degrees_" less than 8.
eg:
md5   rank   degrees
2       0       8
2       1       5
2       2       0
2       6       3
4       3       1
4       5       0

f(2, 2) return (2 1 5)
f(2, 1) return null
f(2, 6) return (2 2 0)(2 1 5)
f(4, 5) return (4 3 1)

Thanks.
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