[v2] Mark noexcept some destructors, add tests

[v2] Mark noexcept some destructors, add tests

[Paolo Carlini]

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Hi,

tested x86_64-linux, committed to mainline.

Paolo.

////////////////////////

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2011-06-14  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/valarray (~valarray): Use noexcept.
	* include/bits/unique_ptr.h (~unique_ptr): Likewise.
	* testsuite/26_numerics/valarray/noexcept_move_construct.cc: New.
	* testsuite/20_util/shared_ptr/cons/noexcept_move_construct.cc:
	Likewise.
	* testsuite/20_util/unique_ptr/cons/noexcept_move_construct.cc:
	Likewise.
	* testsuite/20_util/weak_ptr/cons/noexcept_move_construct.cc:
	Likewise.

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Index: include/std/valarray
===================================================================
--- include/std/valarray	(revision 175025)
+++ include/std/valarray	(working copy)
@@ -165,7 +165,7 @@
       template<class _Dom>
 	valarray(const _Expr<_Dom, _Tp>& __e);
 
-      ~valarray();
+      ~valarray() _GLIBCXX_NOEXCEPT;
 
       // _lib.valarray.assign_ assignment:
       /**
@@ -697,7 +697,7 @@
 
   template<typename _Tp>
     inline
-    valarray<_Tp>::~valarray()
+    valarray<_Tp>::~valarray() _GLIBCXX_NOEXCEPT
     {
       std::__valarray_destroy_elements(_M_data, _M_data + _M_size);
       std::__valarray_release_memory(_M_data);
Index: include/bits/unique_ptr.h
===================================================================
--- include/bits/unique_ptr.h	(revision 175025)
+++ include/bits/unique_ptr.h	(working copy)
@@ -166,7 +166,7 @@
 #endif
 
       // Destructor.
-      ~unique_ptr() { reset(); }
+      ~unique_ptr() noexcept { reset(); }
 
       // Assignment.
       unique_ptr&
Index: testsuite/26_numerics/valarray/noexcept_move_construct.cc
===================================================================
--- testsuite/26_numerics/valarray/noexcept_move_construct.cc	(revision 0)
+++ testsuite/26_numerics/valarray/noexcept_move_construct.cc	(revision 0)
@@ -0,0 +1,27 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2011-06-14  Paolo Carlini  <paolo.carlini@oracle.com>
+//
+// 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 <valarray>
+
+typedef std::valarray<int> vtype;
+
+static_assert(std::is_nothrow_move_constructible<vtype>::value, "Error");
Index: testsuite/20_util/shared_ptr/cons/noexcept_move_construct.cc
===================================================================
--- testsuite/20_util/shared_ptr/cons/noexcept_move_construct.cc	(revision 0)
+++ testsuite/20_util/shared_ptr/cons/noexcept_move_construct.cc	(revision 0)
@@ -0,0 +1,27 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2011-06-14  Paolo Carlini  <paolo.carlini@oracle.com>
+//
+// 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>
+
+typedef std::shared_ptr<int> sptype;
+
+static_assert(std::is_nothrow_move_constructible<sptype>::value, "Error");
Index: testsuite/20_util/unique_ptr/cons/noexcept_move_construct.cc
===================================================================
--- testsuite/20_util/unique_ptr/cons/noexcept_move_construct.cc	(revision 0)
+++ testsuite/20_util/unique_ptr/cons/noexcept_move_construct.cc	(revision 0)
@@ -0,0 +1,27 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2011-06-14  Paolo Carlini  <paolo.carlini@oracle.com>
+//
+// 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>
+
+typedef std::unique_ptr<int> uptype;
+
+static_assert(std::is_nothrow_move_constructible<uptype>::value, "Error");
Index: testsuite/20_util/weak_ptr/cons/noexcept_move_construct.cc
===================================================================
--- testsuite/20_util/weak_ptr/cons/noexcept_move_construct.cc	(revision 0)
+++ testsuite/20_util/weak_ptr/cons/noexcept_move_construct.cc	(revision 0)
@@ -0,0 +1,27 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2011-06-14  Paolo Carlini  <paolo.carlini@oracle.com>
+//
+// 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>
+
+typedef std::weak_ptr<int> wptype;
+
+static_assert(std::is_nothrow_move_constructible<wptype>::value, "Error");