problem sorting a set - c++

On Oct 16, 7:00 pm, Anonymous <no.re...@here.com> wrote:

> I have problems compiling the ff line:
>
> std::sort(sequence_set.begin(), sequence_set.end());
>
> Error 2 error C2784: 'reverse_iterator<_RanIt>::difference_type
> std:perator -(const std::reverse_iterator<_RanIt> &,const
> std::reverse_iterator<_RanIt2> &)' : could not deduce template argument
> for 'const std::reverse_iterator<_RanIt> &' from
> 'std::_Tree<_Traits>::iterator' c:\program files\microsoft visual
> studio 8\vc\include\algorithm 2754
>
> The variable sequence_set is of type std::set, and contains classes
> which have the ff comparison operators defined:
>
> '==', '>', and '<' (equality, greater than and less than)

A std::set is already sorted, and you cannot rearrange the ordering of
the elements within it. For that matter, std::sort requires random
access iterators, which a std::set does not have. Hence, you cannot
call std::sort on it.

Perhaps you should explain what it is you are trying to accomplish.

Best regards,

Tom