Proposed resolution:

1. In Table 109 — Seed sequence requirements, expression "r.param(ob)" change the
   Return type entry:

   voidOutputIterator
   

2. In [rand.util.seedseq], class seed_seq synopsis change

   template<class OutputIterator>
   voidOutputIterator param(OutputIterator dest) const;
   

[ 2010 Pittsburgh: ]

No technical counterarguments, but it is simply too late in the process to make this change at this point.

[ 2010-02-07 Howard adds: ]

At the time this issue was opened, the suggested changes are with respect to an anticipated draft which does not yet exist.

The Seed sequence requirements ([rand.req.seedseq]) require the existence of a member function

template<typename OutputIterator>
void param(OutputIterator ob);

The fact that this function returns void instead of the value of ob after accepting the sequence data leads to the same problem as in issue 865 - In case of pure output iterators there is no way to serialize further data into that data sink.