[Boost-users] [fusion] at_key + for_each

Subject: [Boost-users] [fusion] at_key + for_each
From: Denis Taniguchi (taniguchi_at_[hidden])
Date: 2010-05-04 09:59:13

Hi,

I was trying to implement something equivalent to the following piece of
code:

template <class Field1, class Field2, ... , class FieldN, class Range,
class Function>
Function for_each(Range &r, Function f)
{
  using namespace boost;
  using namespace boost::fusion;

  BOOST_FOREACH(typename range_value<Range>::type &v, r)
  {
    at_key<Field1>(v) = f(at_key<Field2>(v), at_key<Field3>(v), ... ,
at_key<FieldN>(v));
  }
  return f;
}

Is there a simple way to do this using fusion's current functionalities?

Regards,

Denis