Makefile.am: Add new ptr_traits.h header.

2011-05-28  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/Makefile.am: Add new ptr_traits.h header.
	* include/Makefile.in: Regenerate.
	* include/bits/ptr_traits.h (pointer_traits): New.
	* include/bits/allocator.h (allocator_traits): Add.
	* include/ext/array_allocator.h (construct, destroy): Update C++0x
	versions.
	* include/ext/bitmap_allocator.h (construct, destroy): Likewise.
	* include/ext/extptr_allocator.h (construct, destroy): Likewise.
	* include/ext/malloc_allocator.h (construct, destroy): Likewise.
	* include/ext/mt_allocator.h (construct, destroy): Likewise.
	* include/ext/new_allocator.h (construct, destroy): Likewise.
	* include/ext/pool_allocator.h (construct, destroy): Likewise.
	* include/ext/throw_allocator.h (construct, destroy): Likewise.
	* testsuite/20_util/allocator_traits/requirements/typedefs.cc: New.
	* testsuite/20_util/allocator_traits/requirements/
	explicit_instantiation.cc: New.
	* testsuite/20_util/allocator_traits/members/max_size.cc: New.
	* testsuite/20_util/allocator_traits/members/select.cc: New.
	* testsuite/20_util/allocator_traits/members/construct.cc: New.
	* testsuite/20_util/allocator_traits/members/allocate_hint.cc: New.
	* testsuite/20_util/allocator_traits/members/destroy.cc: New.
	* testsuite/20_util/pointer_traits/requirements/typedefs.cc: New.
	* testsuite/20_util/pointer_traits/requirements/
	explicit_instantiation.cc: New.

From-SVN: r174380

libstdc++-v3/ChangeLog

 2011-05-28  Jonathan Wakely  <jwakely.gcc@gmail.com>
 
+	* include/Makefile.am: Add new ptr_traits.h header.
+	* include/Makefile.in: Regenerate.
+	* include/bits/ptr_traits.h (pointer_traits): New.
+	* include/bits/allocator.h (allocator_traits): Add.
+	* include/ext/array_allocator.h (construct, destroy): Update C++0x
+	versions.
+	* include/ext/bitmap_allocator.h (construct, destroy): Likewise.
+	* include/ext/extptr_allocator.h (construct, destroy): Likewise.
+	* include/ext/malloc_allocator.h (construct, destroy): Likewise.
+	* include/ext/mt_allocator.h (construct, destroy): Likewise.
+	* include/ext/new_allocator.h (construct, destroy): Likewise.
+	* include/ext/pool_allocator.h (construct, destroy): Likewise.
+	* include/ext/throw_allocator.h (construct, destroy): Likewise.
+	* testsuite/20_util/allocator_traits/requirements/typedefs.cc: New.
+	* testsuite/20_util/allocator_traits/requirements/
+	explicit_instantiation.cc: New.
+	* testsuite/20_util/allocator_traits/members/max_size.cc: New.
+	* testsuite/20_util/allocator_traits/members/select.cc: New.
+	* testsuite/20_util/allocator_traits/members/construct.cc: New.
+	* testsuite/20_util/allocator_traits/members/allocate_hint.cc: New.
+	* testsuite/20_util/allocator_traits/members/destroy.cc: New.
+	* testsuite/20_util/pointer_traits/requirements/typedefs.cc: New.
+	* testsuite/20_util/pointer_traits/requirements/
+	explicit_instantiation.cc: New.
+
+2011-05-28  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
 	* include/std/future (launch): Update enumerators and define
 	operators required for bitmask type. Remove trailing whitespace.
 	* src/future.cc: Remove trailing whitespace.

libstdc++-v3/include/Makefile.am

@@ -119,6 +119,7 @@ bits_headers = \
 	${bits_srcdir}/ostream.tcc \
 	${bits_srcdir}/ostream_insert.h \
 	${bits_srcdir}/postypes.h \
+	${bits_srcdir}/ptr_traits.h \
 	${bits_srcdir}/random.h \
 	${bits_srcdir}/random.tcc \
 	${bits_srcdir}/range_access.h \

libstdc++-v3/include/Makefile.in

@@ -370,6 +370,7 @@ bits_headers = \
 	${bits_srcdir}/ostream.tcc \
 	${bits_srcdir}/ostream_insert.h \
 	${bits_srcdir}/postypes.h \
+	${bits_srcdir}/ptr_traits.h \
 	${bits_srcdir}/random.h \
 	${bits_srcdir}/random.tcc \
 	${bits_srcdir}/range_access.h \

libstdc++-v3/include/bits/ptr_traits.h

+// Pointer Traits -*- C++ -*-
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/ptr_traits.h
+ *  This is an internal header file, included by other library headers.
+ *  Do not attempt to use it directly. @headername{memory}
+ */
+
+#ifndef _PTR_TRAITS_H
+#define _PTR_TRAITS_H 1
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+
+#include <type_traits> // For _GLIBCXX_HAS_NESTED_TYPE
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+_GLIBCXX_HAS_NESTED_TYPE(element_type)
+_GLIBCXX_HAS_NESTED_TYPE(difference_type)
+
+  template<typename _Tp, bool = __has_element_type<_Tp>::value>
+    struct __ptrtr_elt_type;
+
+  template<typename _Tp>
+    struct __ptrtr_elt_type<_Tp, true>
+    {
+      typedef typename _Tp::element_type __type;
+    };
+
+  template<template<typename, typename...> class _SomePtr, typename _Tp,
+            typename... _Args>
+    struct __ptrtr_elt_type<_SomePtr<_Tp, _Args...>, false>
+    {
+      typedef _Tp __type;
+    };
+
+  template<typename _Tp, bool = __has_difference_type<_Tp>::value>
+    struct __ptrtr_diff_type
+    {
+      typedef typename _Tp::difference_type __type;
+    };
+
+  template<typename _Tp>
+    struct __ptrtr_diff_type<_Tp, false>
+    {
+      typedef ptrdiff_t __type;
+    };
+
+  template<typename _Ptr, typename _Up>
+    class __ptrtr_rebind_helper
+    {
+      template<typename _Ptr2, typename _Up2>
+	static constexpr bool
+       	_S_chk(typename _Ptr2::template rebind<_Up2>*)
+       	{ return true; }
+
+      template<typename, typename>
+        static constexpr bool
+       	_S_chk(...)
+       	{ return false; }
+
+    public:
+      static const bool __value = _S_chk<_Ptr, _Up>(nullptr);
+    };
+
+  // hack to use _Tp::__rebind<_Up>::__type instead if that exists
+  template<typename _Ptr, typename _Up>
+    class __ptrtr_rebind_helper2
+    {
+      template<typename _Ptr2, typename _Up2>
+	static constexpr bool
+       	_S_chk(typename _Ptr2::template __rebind<_Up2>::__type*)
+	{ return true; }
+
+      template<typename, typename>
+        static constexpr bool
+       	_S_chk(...)
+       	{ return false; }
+
+    public:
+      static const bool __value = _S_chk<_Ptr, _Up>(nullptr);
+    };
+
+  /* TODO: remove second bool when alias templates are supported */
+  template<typename _Tp, typename _Up,
+           bool = __ptrtr_rebind_helper<_Tp, _Up>::value,
+           bool = __ptrtr_rebind_helper2<_Tp, _Up>::value>
+    struct __ptrtr_rebind;
+
+  template<typename _Tp, typename _Up, bool _B2>
+    struct __ptrtr_rebind<_Tp, _Up, true, _B2>
+    {
+      typedef typename _Tp::template rebind<_Up> __type;
+    };
+
+  /* TODO: remove this when alias templates are supported */
+  template<typename _Tp, typename _Up>
+    struct __ptrtr_rebind<_Tp, _Up, false, true>
+    {
+      typedef typename _Tp::template __rebind<_Up>::__type __type;
+    };
+
+  template<template<typename, typename...> class _SomePtr, typename _Up,
+            typename _Tp, typename... _Args>
+    struct __ptrtr_rebind<_SomePtr<_Tp, _Args...>, _Up, false, false>
+    {
+      typedef _SomePtr<_Up, _Args...> __type;
+    };
+
+  template<typename _Tp, typename = typename remove_cv<_Tp>::type>
+    struct __ptrtr_not_void
+    {
+      typedef _Tp __type;
+    };
+
+  template<typename _Tp>
+    struct __ptrtr_not_void<_Tp, void>
+    {
+      struct __type { };
+    };
+
+  template<typename _Ptr>
+    class __ptrtr_pointer_to
+    {
+      typedef typename __ptrtr_elt_type<_Ptr>::__type   __orig_type;
+      typedef typename __ptrtr_not_void<__orig_type>::__type __element_type;
+
+    public:
+      static _Ptr pointer_to(__element_type& __e)
+      { return _Ptr::pointer_to(__e); }
+    };
+
+  /**
+   * @brief  Uniform interface to all pointer-like types
+   * @ingroup pointer_abstractions
+  */
+  template<typename _Ptr>
+    struct pointer_traits : __ptrtr_pointer_to<_Ptr>
+    {
+      /// The pointer type
+      typedef _Ptr                                      pointer;
+      /// The type pointed to
+      typedef typename __ptrtr_elt_type<_Ptr>::__type   element_type;
+      /// Type used to represent the difference between two pointers
+      typedef typename __ptrtr_diff_type<_Ptr>::__type  difference_type;
+
+    private:
+      /* TODO: replace __rebind<U> with alias template rebind<U> */
+      /*
+      template<typename _Up>
+        using rebind<_Up> = typename __ptrtr_rebind<_Ptr, _Up>::__type;
+      */
+      template<typename _Up>
+       	struct __rebind
+        { typedef typename __ptrtr_rebind<_Ptr, _Up>::__type __type; };
+
+      // allocator_traits needs to use __rebind
+      template<typename> struct allocator_traits;
+      template<typename, typename> class __ptrtr_rebind_helper2;
+    };
+
+  /**
+   * @brief  Partial specialization for built-in pointers.
+   * @ingroup pointer_abstractions
+  */
+  template<typename _Tp>
+    struct pointer_traits<_Tp*>
+    {
+      /// The pointer type
+      typedef _Tp* pointer;
+      /// The type pointed to
+      typedef _Tp  element_type;
+      /// Type used to represent the difference between two pointers
+      typedef ptrdiff_t difference_type;
+
+      /* TODO: replace __rebind<U> with alias template rebind<U> */
+      /*
+      template<typename _Up>
+        using rebind<_Up> = U*;
+      */
+      template<typename U>
+       	struct __rebind { typedef U* __type; };
+
+      /**
+       *  @brief  Obtain a pointer to an object
+       *  @param  r  A reference to an object of type @c element_type
+       *  @return @c addressof(r)
+      */
+      static pointer
+      pointer_to(typename __ptrtr_not_void<element_type>::__type& __r)
+      { return std::addressof(__r); }
+    };
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif
+
+#endif

libstdc++-v3/include/ext/array_allocator.h

@@ -72,21 +72,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       max_size() const throw() 
       { return size_t(-1) / sizeof(_Tp); }
 
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      template<typename _Up, typename... _Args>
+        void
+        construct(_Up* __p, _Args&&... __args)
+	{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
+
+      template<typename _Up>
+        void 
+        destroy(_Up* __p) { __p->~_Up(); }
+#else
       // _GLIBCXX_RESOLVE_LIB_DEFECTS
       // 402. wrong new expression in [some_] allocator::construct
       void 
       construct(pointer __p, const _Tp& __val) 
       { ::new((void *)__p) value_type(__val); }
 
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      template<typename... _Args>
-        void
-        construct(pointer __p, _Args&&... __args)
-	{ ::new((void *)__p) _Tp(std::forward<_Args>(__args)...); }
-#endif
-
       void 
       destroy(pointer __p) { __p->~_Tp(); }
+#endif
     };  
 
   /**

libstdc++-v3/include/ext/bitmap_allocator.h

@@ -1053,20 +1053,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       max_size() const throw()
       { return size_type(-1) / sizeof(value_type); }
 
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      template<typename _Up, typename... _Args>
+        void
+        construct(_Up* __p, _Args&&... __args)
+	{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
+
+      template<typename _Up>
+        void 
+        destroy(_Up* __p)
+        { __p->~_Up(); }
+#else
       void 
       construct(pointer __p, const_reference __data)
       { ::new((void *)__p) value_type(__data); }
 
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      template<typename... _Args>
-        void
-        construct(pointer __p, _Args&&... __args)
-	{ ::new((void *)__p) _Tp(std::forward<_Args>(__args)...); }
-#endif
-
       void 
       destroy(pointer __p)
       { __p->~value_type(); }
+#endif
     };
 
   template<typename _Tp1, typename _Tp2>

libstdc++-v3/include/ext/extptr_allocator.h

@@ -100,18 +100,23 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       size_type max_size() const throw()
       { return std::numeric_limits<size_type>::max() / sizeof(_Tp); }
 
-      void construct(pointer __p, const _Tp& __val)
-      { ::new(__p.get()) _Tp(__val); }
-
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
-      template<typename... _Args>
+      template<typename _Up, typename... _Args>
         void
-        construct(pointer __p, _Args&&... __args)
-        { ::new(__p.get()) _Tp(std::forward<_Args>(__args)...); }
-#endif
+        construct(_Up* __p, _Args&&... __args)
+	{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
+
+      template<typename _Up>
+        void 
+        destroy(_Up* __p)
+        { __p->~_Up(); }
+#else
+      void construct(pointer __p, const _Tp& __val)
+      { ::new(__p.get()) _Tp(__val); }
 
       void destroy(pointer __p)
       { __p->~_Tp(); }
+#endif
 
       template<typename _Up>
         inline bool

libstdc++-v3/include/ext/malloc_allocator.h

@@ -104,21 +104,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       max_size() const throw() 
       { return size_t(-1) / sizeof(_Tp); }
 
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      template<typename _Up, typename... _Args>
+        void
+        construct(_Up* __p, _Args&&... __args)
+	{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
+
+      template<typename _Up>
+        void 
+        destroy(_Up* __p) { __p->~_Up(); }
+#else
       // _GLIBCXX_RESOLVE_LIB_DEFECTS
       // 402. wrong new expression in [some_] allocator::construct
       void 
       construct(pointer __p, const _Tp& __val) 
       { ::new((void *)__p) value_type(__val); }
 
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      template<typename... _Args>
-        void
-        construct(pointer __p, _Args&&... __args) 
-	{ ::new((void *)__p) _Tp(std::forward<_Args>(__args)...); }
-#endif
-
       void 
       destroy(pointer __p) { __p->~_Tp(); }
+#endif
     };
 
   template<typename _Tp>

libstdc++-v3/include/ext/mt_allocator.h

@@ -588,21 +588,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       max_size() const throw() 
       { return size_t(-1) / sizeof(_Tp); }
 
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      template<typename _Up, typename... _Args>
+        void
+        construct(_Up* __p, _Args&&... __args)
+	{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
+
+      template<typename _Up>
+        void 
+        destroy(_Up* __p) { __p->~_Up(); }
+#else
       // _GLIBCXX_RESOLVE_LIB_DEFECTS
       // 402. wrong new expression in [some_] allocator::construct
       void 
       construct(pointer __p, const _Tp& __val) 
       { ::new((void *)__p) _Tp(__val); }
 
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      template<typename... _Args>
-        void
-        construct(pointer __p, _Args&&... __args)
-	{ ::new((void *)__p) _Tp(std::forward<_Args>(__args)...); }
-#endif
-
       void 
       destroy(pointer __p) { __p->~_Tp(); }
+#endif
     };
 
 #ifdef __GTHREADS

libstdc++-v3/include/ext/new_allocator.h

@@ -101,21 +101,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       max_size() const throw() 
       { return size_t(-1) / sizeof(_Tp); }
 
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      template<typename _Up, typename... _Args>
+        void
+        construct(_Up* __p, _Args&&... __args)
+	{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
+
+      template<typename _Up>
+        void 
+        destroy(_Up* __p) { __p->~_Up(); }
+#else
       // _GLIBCXX_RESOLVE_LIB_DEFECTS
       // 402. wrong new expression in [some_] allocator::construct
       void 
       construct(pointer __p, const _Tp& __val) 
       { ::new((void *)__p) _Tp(__val); }
 
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      template<typename... _Args>
-        void
-        construct(pointer __p, _Args&&... __args)
-	{ ::new((void *)__p) _Tp(std::forward<_Args>(__args)...); }
-#endif
-
       void 
       destroy(pointer __p) { __p->~_Tp(); }
+#endif
     };
 
   template<typename _Tp>

libstdc++-v3/include/ext/pool_allocator.h

@@ -158,21 +158,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       max_size() const throw() 
       { return size_t(-1) / sizeof(_Tp); }
 
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      template<typename _Up, typename... _Args>
+        void
+        construct(_Up* __p, _Args&&... __args)
+	{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
+
+      template<typename _Up>
+        void 
+        destroy(_Up* __p) { __p->~_Up(); }
+#else
       // _GLIBCXX_RESOLVE_LIB_DEFECTS
       // 402. wrong new expression in [some_] allocator::construct
       void 
       construct(pointer __p, const _Tp& __val) 
       { ::new((void *)__p) _Tp(__val); }
 
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      template<typename... _Args>
-        void
-        construct(pointer __p, _Args&&... __args)
-	{ ::new((void *)__p) _Tp(std::forward<_Args>(__args)...); }
-#endif
-
       void 
       destroy(pointer __p) { __p->~_Tp(); }
+#endif
 
       pointer
       allocate(size_type __n, const void* = 0);

libstdc++-v3/include/ext/throw_allocator.h

@@ -639,20 +639,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	return a;
       }
 
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+      template<typename _Up, typename... _Args>
+        void
+        construct(_Up* __p, _Args&&... __args)
+	{ return _M_allocator.construct(__p, std::forward<_Args>(__args)...); }
+
+      template<typename _Up>
+        void 
+        destroy(_Up* __p)
+        { _M_allocator.destroy(__p); }
+#else
       void
       construct(pointer __p, const value_type& val)
       { return _M_allocator.construct(__p, val); }
 
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      template<typename... _Args>
-	void
-	construct(pointer __p, _Args&&... __args)
-	{ return _M_allocator.construct(__p, std::forward<_Args>(__args)...); }
-#endif
-
       void
       destroy(pointer __p)
       { _M_allocator.destroy(__p); }
+#endif
 
       void
       deallocate(pointer __p, size_type __n)

libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint.cc

+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <memory>
+#include <cstddef>
+#include <testsuite_hooks.h>
+
+struct X { };
+
+template<typename T>
+struct hintable_allocator
+{
+  typedef T value_type;
+  struct const_void_pointer { };
+  typedef unsigned size_type;
+
+  hintable_allocator() : called(false) { }
+
+  bool called;
+
+  // this is the overload that should get called:
+  T* allocate(size_type n, const_void_pointer) { called = true; return 0; }
+
+  // none of these should get called:
+  T* allocate(size_type n);
+  T* allocate(size_type n, void*);
+  T* allocate(size_type n, const void*);
+  T* allocate(size_type n, const_void_pointer) const;
+};
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::allocator_traits<hintable_allocator<X>> traits_type;
+  traits_type::allocator_type a;
+  traits_type::const_void_pointer v;
+  X* p = traits_type::allocate(a, 1, v);
+  VERIFY( a.called );
+}
+
+template<typename T>
+struct unhintable_allocator
+{
+  typedef T value_type;
+  typedef unsigned size_type;
+
+  unhintable_allocator() : called(false) { }
+
+  bool called;
+
+  // this is the overload that should get called:
+  T* allocate(size_type n) { called = true; return 0; }
+
+  // this should not get called:
+  T* allocate(size_type n, void*);
+};
+
+void test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::allocator_traits<unhintable_allocator<X>> traits_type;
+  traits_type::allocator_type a;
+  traits_type::const_void_pointer v;
+  X* p = traits_type::allocate(a, 1, v);
+  VERIFY( a.called );
+}
+
+int main()
+{
+  test01();
+  test02();
+}

libstdc++-v3/testsuite/20_util/allocator_traits/members/construct.cc

+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <memory>
+#include <cstddef>
+#include <testsuite_hooks.h>
+
+struct X
+{
+  static int counter;
+  X() { }
+  X(const X&) { ++counter; }
+  explicit X(int) { ++counter; }
+  X(int, int) { ++counter; }
+  X(int, int, int) { ++counter; }
+};
+
+int X::counter = 0;
+
+template<typename T>
+struct fake_allocator
+{
+  typedef T value_type;
+
+  fake_allocator() : counter() {}
+
+  int counter;
+
+  T* allocate(std::size_t n) { return (T*)new char[n*sizeof(T)]; }
+  void deallocate(T* p, std::size_t) { delete[] (char*)p; }
+
+  // don't actually construct anything when these are called
+  void construct(T* p) { ++counter; }
+  void construct(T* p, int, int) { ++counter; }
+};
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::allocator_traits<fake_allocator<X>> traits_type;
+  traits_type::allocator_type a;
+  X* p = traits_type::allocate(a, 1);
+  traits_type::construct(a, p);
+  VERIFY( a.counter == 1 );
+  traits_type::construct(a, p, 1);
+  VERIFY( a.counter == 1 );
+  VERIFY( X::counter == 1 );
+  traits_type::destroy(a, p);
+  traits_type::construct(a, p, 1, 1);
+  VERIFY( a.counter == 2 );
+  VERIFY( X::counter == 1 );
+  traits_type::construct(a, p, 1, 1, 1);
+  VERIFY( a.counter == 2 );
+  VERIFY( X::counter == 2 );
+  traits_type::destroy(a, p);
+  traits_type::deallocate(a, p, 1);
+}
+
+int main()
+{
+  test01();
+}

libstdc++-v3/testsuite/20_util/allocator_traits/members/destroy.cc

+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <memory>
+#include <new>
+#include <testsuite_hooks.h>
+
+struct X
+{
+  static int counter;
+  ~X() { ++counter; }
+};
+
+int X::counter = 0;
+
+template<typename T>
+struct allocator_with_destroy
+{
+  typedef T value_type;
+
+  allocator_with_destroy() : called() { }
+
+  void destroy(T* p) { called = true; }
+
+  int called;
+};
+
+template<typename T>
+struct allocator_without_destroy
+{
+  typedef T value_type;
+
+  allocator_without_destroy() : called() { }
+
+  int called;
+};
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::allocator_traits<allocator_with_destroy<X>> traits_type;
+  traits_type::allocator_type a;
+  X* p = 0;
+  traits_type::destroy(a, p);
+  VERIFY( a.called );
+  VERIFY( X::counter == 0 );
+}
+
+void test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::allocator_traits<allocator_without_destroy<X>> traits_type;
+  traits_type::allocator_type a;
+  char buf[sizeof(X)];
+  X* p = ::new (static_cast<void*>(buf)) X();
+  traits_type::destroy(a, p);
+  VERIFY( !a.called );
+  VERIFY( X::counter == 1 );
+}
+
+int main()
+{
+  test01();
+  test02();
+}

libstdc++-v3/testsuite/20_util/allocator_traits/members/max_size.cc

+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <memory>
+#include <limits>
+#include <type_traits>
+#include <testsuite_hooks.h>
+
+struct X { };
+
+template<typename T>
+struct maxsize_allocator
+{
+  typedef T value_type;
+  typedef unsigned size_type;
+
+  size_type max_size() const { return 100; }
+};
+
+template<typename T>
+struct unsized_allocator
+{
+  typedef T value_type;
+};
+
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::allocator_traits<maxsize_allocator<X>> traits_type;
+  traits_type::allocator_type a;
+  auto size = a.max_size();
+  VERIFY( traits_type::max_size(a) == size );
+}
+
+void test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::allocator_traits<unsized_allocator<X>> traits_type;
+  traits_type::allocator_type a;
+  auto size = std::numeric_limits<traits_type::size_type>::max();
+  VERIFY( traits_type::max_size(a) == size );
+}
+
+int main()
+{
+  test01();
+  test02();
+}

libstdc++-v3/testsuite/20_util/allocator_traits/members/select.cc

+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct X { };
+
+template<typename T>
+struct alloc1
+{
+  typedef T value_type;
+
+  int id;
+};
+
+template<typename T>
+struct alloc2
+{
+  typedef T value_type;
+
+  int id;
+
+  alloc2 select_on_container_copy_construction() const
+  { return alloc2{id+1}; }
+};
+
+
+void test01()
+{
+  typedef std::allocator_traits<alloc1<X>> traits_type;
+  traits_type::allocator_type a{1};
+  const traits_type::allocator_type& a2
+    = traits_type::select_on_container_copy_construction(a);
+  VERIFY( a2.id == a.id );
+}
+
+void test02()
+{
+  typedef std::allocator_traits<alloc1<X>> traits_type;
+  traits_type::allocator_type a{1};
+  const traits_type::allocator_type& a2
+    = traits_type::select_on_container_copy_construction(a);
+  VERIFY( a2.id != a.id );
+}
+
+int main()
+{
+  test01();
+  test02();
+}

libstdc++-v3/testsuite/20_util/allocator_traits/requirements/explicit_instantiation.cc

+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// NB: This file is for testing memory with NO OTHER INCLUDES.
+
+#include <memory>
+
+namespace std
+{
+  typedef short test_type;
+  template struct allocator_traits<std::allocator<test_type>>;
+}

libstdc++-v3/testsuite/20_util/allocator_traits/requirements/typedefs.cc

+// { dg-options "-std=gnu++0x" }
+//
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 
+// NB: This file is for testing memory with NO OTHER INCLUDES.
+
+#include <memory>
+
+// { dg-do compile }
+
+template<typename T>
+void test01()
+{
+  // Check for required typedefs
+  typedef std::allocator_traits<T>                  test_type;
+  typedef typename test_type::pointer               pointer;
+  typedef typename test_type::const_pointer         const_pointer;
+  typedef typename test_type::void_pointer          void_pointer;
+  typedef typename test_type::const_void_pointer    const_void_pointer;
+  typedef typename test_type::difference_type       difference_type;
+  typedef typename test_type::size_type             size_type;
+  typedef typename test_type::propagate_on_container_copy_assignment
+    propagate_on_container_copy_assignment;
+  typedef typename test_type::propagate_on_container_move_assignment
+    propagate_on_container_move_assignment;
+  typedef typename test_type::propagate_on_container_swap
+    propagate_on_container_swap;
+}
+
+struct S { };
+
+int main()
+{
+  test01<std::allocator<int>>();
+  test01<std::allocator<S>>();
+}

libstdc++-v3/testsuite/20_util/pointer_traits/requirements/explicit_instantiation.cc

+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// NB: This file is for testing memory with NO OTHER INCLUDES.
+
+#include <memory>
+
+namespace std
+{
+  typedef short test_type;
+  template struct pointer_traits<test_type*>;
+  template struct pointer_traits<shared_ptr<test_type>>;
+  template struct pointer_traits<unique_ptr<test_type>>;
+}

libstdc++-v3/testsuite/20_util/pointer_traits/requirements/typedefs.cc

+// { dg-options "-std=gnu++0x" }
+//
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 
+// NB: This file is for testing memory with NO OTHER INCLUDES.
+
+#include <memory>
+
+// { dg-do compile }
+
+template<typename Ptr>
+void test01()
+{
+  // Check for required typedefs
+  typedef std::pointer_traits<Ptr>              test_type;
+  typedef typename test_type::pointer           pointer;
+  typedef typename test_type::element_type      element_type;
+  typedef typename test_type::difference_type   difference_type;
+}
+
+int main()
+{
+  test01<int*>();
+  test01<void*>();
+  test01<std::shared_ptr<int>>();
+  test01<std::shared_ptr<void>>();
+  test01<std::unique_ptr<int>>();
+  test01<std::unique_ptr<void>>();
+}