Re: [Boost-users] Remove elements from a list

From: Pablo Aguilar (pablo.aguilar_at_[hidden])
Date: 2006-03-03 16:31:52

Meryl Silverburgh wrote:
> I have a vector<float> source vector and a vector<int> keys.
> 
> I would like to remove all element in the keys from the source vector.
> 
> i.e. if the keys array is <1, 3, 4, 5>
> I would like to remove 1st, 3rd , 4th, 5th element from the source vector.
> 
> how can I do that?
> 
> Thank you.

I think this is as simple as possible:

        sort(keys.begin(), keys.end(), greater<int>());
        // maybe use std::unique to remove duplicates
        BOOST_FOREACH(int key, keys)
        {
                assert(key >= 0);
                assert(key < data.size());
                data.erase(boost::next(data.begin(), key));
        }