re PR libstdc++/65279 (std::scoped_allocator_adaptor is not assignable)

	PR libstdc++/65279
	* include/std/scoped_allocator (__inner_type_impl,
	scoped_allocator_adaptor): Add defaulted copy assignment and move
	assignment operators.
	* testsuite/20_util/scoped_allocator/65279.cc: New.

From-SVN: r221119

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 45a0f8c0b697b21bd1f72877dcd28228801f354f..33a90dc5127794264f90c77c27d256b29343f13a 100644 (file)
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,11 @@
+2015-03-02  Jonathan Wakely  <jwakely@redhat.com>
+
+       PR libstdc++/65279
+       * include/std/scoped_allocator (__inner_type_impl,
+       scoped_allocator_adaptor): Add defaulted copy assignment and move
+       assignment operators.
+       * testsuite/20_util/scoped_allocator/65279.cc: New.
+
 2015-03-02  Jonathan Wakely  <jwakely@redhat.com>
 
        PR libstdc++/64367

diff --git a/libstdc++-v3/include/std/scoped_allocator b/libstdc++-v3/include/std/scoped_allocator
index 1be10b294cddf52575428d565e483d7e42a1c26e..d163edd109a9d020dd6105e3921e91ba266df39c 100644 (file)
--- a/libstdc++-v3/include/std/scoped_allocator
+++ b/libstdc++-v3/include/std/scoped_allocator
@@ -105,6 +105,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       __inner_type_impl() = default;
       __inner_type_impl(const __inner_type_impl&) = default;
       __inner_type_impl(__inner_type_impl&&) = default;
+      __inner_type_impl& operator=(const __inner_type_impl&) = default;
+      __inner_type_impl& operator=(__inner_type_impl&&) = default;
       
       template<typename _Alloc>
       __inner_type_impl(const __inner_type_impl<_Alloc>& __other)
@@ -136,6 +138,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       __inner_type_impl() = default;
       __inner_type_impl(const __inner_type_impl&) = default;
       __inner_type_impl(__inner_type_impl&&) = default;
+      __inner_type_impl& operator=(const __inner_type_impl&) = default;
+      __inner_type_impl& operator=(__inner_type_impl&&) = default;
       
       template<typename... _Allocs>
       __inner_type_impl(const __inner_type_impl<_Allocs...>& __other)
@@ -310,6 +314,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
           _M_inner(std::move(__other._M_inner))
         { }
 
+      scoped_allocator_adaptor&
+      operator=(const scoped_allocator_adaptor&) = default;
+
+      scoped_allocator_adaptor&
+      operator=(scoped_allocator_adaptor&&) = default;
+
       inner_allocator_type& inner_allocator() noexcept
       { return _M_inner._M_get(this); }
 

diff --git a/libstdc++-v3/testsuite/20_util/scoped_allocator/65279.cc b/libstdc++-v3/testsuite/20_util/scoped_allocator/65279.cc
new file mode 100644 (file)
index 0000000..786d403
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/scoped_allocator/65279.cc
@@ -0,0 +1,54 @@
+// Copyright (C) 2015 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/>.
+
+// { dg-options "-std=gnu++11" }
+// { dg-do compile }
+
+#include <memory>
+#include <type_traits>
+#include <scoped_allocator>
+
+template<typename T>
+  struct Allocator : std::allocator<T>
+  {
+    template<typename U>
+      struct rebind { using other = Allocator<U>; };
+
+    using propagate_on_container_copy_assignment = std::true_type;
+    using propagate_on_container_move_assignment = std::true_type;
+  };
+
+template<typename... T>
+  using alloc = std::scoped_allocator_adaptor<Allocator<T>...>;
+
+void
+test01()
+{
+  // Test partial specialization for sizeof...(InnerAlloc) == 0
+  alloc<int> a;
+  a = a;
+  a = std::move(a);
+}
+
+void
+test02()
+{
+  // Test partial specialization for sizeof...(InnerAlloc) >= 1
+  alloc<int, char> a;
+  a = a;
+  a = std::move(a);
+}