[Moved to DR at the April, 2013 meeting.]

Proposed resolution (October, 2012):

Change 8.6.5 [stmt.ranged] bullet 1.3 as follows:

• otherwise, begin-expr and end-expr are begin(__range) and end(__range), respectively, where begin and end are looked up with argument-dependent lookup in the associated namespaces (6.5.4 [basic.lookup.argdep]). For the purposes of this name lookup, namespace std is an associated namespace. [Note: Ordinary unqualified lookup (6.5.3 [basic.lookup.unqual]) is not performed. —end note]

It is not clear whether the reference to argument-dependent lookup in 8.6.5 [stmt.ranged] bullet 1.3 should be “pure” argument-dependent lookup (with no unqualified name lookup component) or the usual lookup that is invoked when argument-dependent lookup is done, i.e., unqualified lookup, potentially augmented by the associated namespaces.