alloc_traits.h (__allow_copy_cons): Remove.

	* include/bits/alloc_traits.h (__allow_copy_cons): Remove.
	(__check_copy_constructible): Likewise.
	* include/bits/unordered_map.h (unordered_map, unordered_multimap):
	Do not derive from __check_copy_constructible.
	* include/bits/unordered_set.h (unordered_set, unordered_multiset):
	Likewise.
	* testsuite/23_containers/unordered_map/55043.cc: It is no longer
	necessary for is_copy_constructible to be correct to use nested
	unordered containers.
	* testsuite/23_containers/unordered_multimap/55043.cc: Likewise.
	* testsuite/23_containers/unordered_set/55043.cc: Likewise.
	* testsuite/23_containers/unordered_multiset/55043.cc: Likewise.

From-SVN: r204790

8 files changed, 19 insertions, 125 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 5abe56e..384fb21 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,18 @@
+2013-11-14  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* include/bits/alloc_traits.h (__allow_copy_cons): Remove.
+	(__check_copy_constructible): Likewise.
+	* include/bits/unordered_map.h (unordered_map, unordered_multimap):
+	Do not derive from __check_copy_constructible.
+	* include/bits/unordered_set.h (unordered_set, unordered_multiset):
+	Likewise.
+	* testsuite/23_containers/unordered_map/55043.cc: It is no longer
+	necessary for is_copy_constructible to be correct to use nested
+	unordered containers.
+	* testsuite/23_containers/unordered_multimap/55043.cc: Likewise.
+	* testsuite/23_containers/unordered_set/55043.cc: Likewise.
+	* testsuite/23_containers/unordered_multiset/55043.cc: Likewise.
+
 2013-11-13  Marc Glisse  <marc.glisse@inria.fr>
 
 	PR libstdc++/59087
diff --git a/libstdc++-v3/include/bits/alloc_traits.h b/libstdc++-v3/include/bits/alloc_traits.h
index e68d317..815c4b8 100644
--- a/libstdc++-v3/include/bits/alloc_traits.h
+++ b/libstdc++-v3/include/bits/alloc_traits.h
@@ -541,24 +541,6 @@ _GLIBCXX_ALLOC_TR_NESTED_TYPE(propagate_on_container_swap,
     : is_copy_constructible<_Tp>
     { };
 
-  // Used to allow copy construction of unordered containers
-  template<bool> struct __allow_copy_cons { };
-
-  // Used to delete copy constructor of unordered containers
-  template<>
-    struct __allow_copy_cons<false>
-    {
-      __allow_copy_cons() = default;
-      __allow_copy_cons(const __allow_copy_cons&) = delete;
-      __allow_copy_cons(__allow_copy_cons&&) = default;
-      __allow_copy_cons& operator=(const __allow_copy_cons&) = default;
-      __allow_copy_cons& operator=(__allow_copy_cons&&) = default;
-    };
-
-  template<typename _Alloc>
-    using __check_copy_constructible
-      = __allow_copy_cons<__is_copy_insertable<_Alloc>::value>;
-
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace std
 
diff --git a/libstdc++-v3/include/bits/unordered_map.h b/libstdc++-v3/include/bits/unordered_map.h
index 6d5b29e..a1b99ac 100644
--- a/libstdc++-v3/include/bits/unordered_map.h
+++ b/libstdc++-v3/include/bits/unordered_map.h
@@ -95,7 +95,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
 	   class _Hash = hash<_Key>,
 	   class _Pred = std::equal_to<_Key>,
 	   class _Alloc = std::allocator<std::pair<const _Key, _Tp> > >
-    class unordered_map : __check_copy_constructible<_Alloc>
+    class unordered_map
     {
       typedef __umap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc>  _Hashtable;
       _Hashtable _M_h;
@@ -807,7 +807,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
 	   class _Hash = hash<_Key>,
 	   class _Pred = std::equal_to<_Key>,
 	   class _Alloc = std::allocator<std::pair<const _Key, _Tp> > >
-    class unordered_multimap : __check_copy_constructible<_Alloc>
+    class unordered_multimap
     {
       typedef __ummap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc>  _Hashtable;
       _Hashtable _M_h;
diff --git a/libstdc++-v3/include/bits/unordered_set.h b/libstdc++-v3/include/bits/unordered_set.h
index 89deb49..22bddec 100644
--- a/libstdc++-v3/include/bits/unordered_set.h
+++ b/libstdc++-v3/include/bits/unordered_set.h
@@ -90,7 +90,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
 	   class _Hash = hash<_Value>,
 	   class _Pred = std::equal_to<_Value>,
 	   class _Alloc = std::allocator<_Value> >
-    class unordered_set : __check_copy_constructible<_Alloc>
+    class unordered_set
     {
       typedef __uset_hashtable<_Value, _Hash, _Pred, _Alloc>  _Hashtable;
       _Hashtable _M_h;
@@ -725,7 +725,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
 	   class _Hash = hash<_Value>,
 	   class _Pred = std::equal_to<_Value>,
 	   class _Alloc = std::allocator<_Value> >
-    class unordered_multiset : __check_copy_constructible<_Alloc>
+    class unordered_multiset
     {
       typedef __umset_hashtable<_Value, _Hash, _Pred, _Alloc>  _Hashtable;
       _Hashtable _M_h;
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/55043.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/55043.cc
index 50e5437..baef785 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/55043.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/55043.cc
@@ -42,28 +42,3 @@ void test01()
   v.emplace_back(uim());
 }
 
-// Unordered containers don't use allocator_traits yet so need full
-// Allocator interface, derive from std::allocator to get it.
-template<typename T, bool R>
-struct Alloc : std::allocator<T>
-{
-  template<typename U>
-    struct rebind { typedef Alloc<U, R> other; };
-
-  Alloc() = default;
-
-  template<typename U>
-    Alloc(const Alloc<U, R>&) { }
-
-  typedef typename std::conditional<R, T&&, const T&>::type arg_type;
-
-  void construct(T* p, arg_type) const
-  { new((void*)p) T(); }
-};
-
-// verify is_copy_constructible depends on allocator
-typedef test_type<Alloc<MoveOnly, true>> uim_rval;
-static_assert(!std::is_copy_constructible<uim_rval>::value, "is not copyable");
-
-typedef test_type<Alloc<MoveOnly, false>> uim_lval;
-static_assert(std::is_copy_constructible<uim_lval>::value, "is copyable");
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multimap/55043.cc b/libstdc++-v3/testsuite/23_containers/unordered_multimap/55043.cc
index afeecaa..224e660 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multimap/55043.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multimap/55043.cc
@@ -41,29 +41,3 @@ void test01()
   std::vector<uim> v;
   v.emplace_back(uim());
 }
-
-// Unordered containers don't use allocator_traits yet so need full
-// Allocator interface, derive from std::allocator to get it.
-template<typename T, bool R>
-struct Alloc : std::allocator<T>
-{
-  template<typename U>
-    struct rebind { typedef Alloc<U, R> other; };
-
-  Alloc() = default;
-
-  template<typename U>
-    Alloc(const Alloc<U, R>&) { }
-
-  typedef typename std::conditional<R, T&&, const T&>::type arg_type;
-
-  void construct(T* p, arg_type) const
-  { new((void*)p) T(); }
-};
-
-// verify is_copy_constructible depends on allocator
-typedef test_type<Alloc<MoveOnly, true>> uim_rval;
-static_assert(!std::is_copy_constructible<uim_rval>::value, "is not copyable");
-
-typedef test_type<Alloc<MoveOnly, false>> uim_lval;
-static_assert(std::is_copy_constructible<uim_lval>::value, "is copyable");
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/55043.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/55043.cc
index c80ce55..ed9da39 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multiset/55043.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/55043.cc
@@ -45,29 +45,3 @@ void test01()
   std::vector<uim> v;
   v.emplace_back(uim());
 }
-
-// Unordered containers don't use allocator_traits yet so need full
-// Allocator interface, derive from std::allocator to get it.
-template<typename T, bool R>
-struct Alloc : std::allocator<T>
-{
-  template<typename U>
-    struct rebind { typedef Alloc<U, R> other; };
-
-  Alloc() = default;
-
-  template<typename U>
-    Alloc(const Alloc<U, R>&) { }
-
-  typedef typename std::conditional<R, T&&, const T&>::type arg_type;
-
-  void construct(T* p, arg_type) const
-  { new((void*)p) T(); }
-};
-
-// verify is_copy_constructible depends on allocator
-typedef test_type<Alloc<MoveOnly, true>> uim_rval;
-static_assert(!std::is_copy_constructible<uim_rval>::value, "is not copyable");
-
-typedef test_type<Alloc<MoveOnly, false>> uim_lval;
-static_assert(std::is_copy_constructible<uim_lval>::value, "is copyable");
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/55043.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/55043.cc
index 1524890..3a02226 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_set/55043.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/55043.cc
@@ -45,29 +45,3 @@ void test01()
   std::vector<uim> v;
   v.emplace_back(uim());
 }
-
-// Unordered containers don't use allocator_traits yet so need full
-// Allocator interface, derive from std::allocator to get it.
-template<typename T, bool R>
-struct Alloc : std::allocator<T>
-{
-  template<typename U>
-    struct rebind { typedef Alloc<U, R> other; };
-
-  Alloc() = default;
-
-  template<typename U>
-    Alloc(const Alloc<U, R>&) { }
-
-  typedef typename std::conditional<R, T&&, const T&>::type arg_type;
-
-  void construct(T* p, arg_type) const
-  { new((void*)p) T(); }
-};
-
-// verify is_copy_constructible depends on allocator
-typedef test_type<Alloc<MoveOnly, true>> uim_rval;
-static_assert(!std::is_copy_constructible<uim_rval>::value, "is not copyable");
-
-typedef test_type<Alloc<MoveOnly, false>> uim_lval;
-static_assert(std::is_copy_constructible<uim_lval>::value, "is copyable");