Re: [Boost-users] how to Sort boost collection class using multi sorting options/criteria

Subject: Re: [Boost-users] how to Sort boost collection class using multi sorting options/criteria
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-08-10 11:27:08

AMDG

ch.asad_at_[hidden] wrote:
> Hi I am using boost collection class. 
>
> I did sorting e.g apply a quick/bubble sort algo  , but i want to do sorting
> using multiple criteria. how we can implement using boost. 
> Do boost have any  classes or functions through which I can easily sort the
> data using multiple options?
>   

What do you mean by multiple options?

If you want to sort by f first and then by g, use
this formula to get a compound predicate:
h(x,y) = f(x,y) || (!f(y,x) && g(x,y))

In Christ,
Steven Watanabe