re PR libstdc++/53339 (unordered_map::iterator requires Value to be complete type)
2012-05-15 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/53339
* include/bits/hashtable_policy.h (__detail::_Identity,
__detail::_Select1st): Add.
(_Map_base, _Hashtable_base): Use the latter, adjust parameters.
* include/bits/hashtable.h (_Hashtable::__key_extract): Adjust.
* include/bits/unordered_set.h (__uset_hashtable, __umset_hashtable):
Likewise.
* include/bits/unordered_map.h (__umap_hashtable, __ummap_hashtable):
Likewise.
* include/bits/stl_function.h (_Identity, _Select1st, _Select2nd)
Unconditionally derive from unary_function.
* include/ext/functional (identity, select1st, select2nd): Remove
#ifdef __GXX_EXPERIMENTAL_CXX0X__ bits.
* testsuite/23_containers/unordered_map/requirements/53339.cc: New.
* testsuite/23_containers/unordered_multimap/requirements/
53339.cc: Likewise.
From-SVN: r187515
5ac4e73a1d