From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 .../23_containers/forward_list/debug/swap.cc       | 79 ++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc

(limited to 'libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc')

diff --git a/libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc b/libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc
new file mode 100644
index 000000000..85884c0af
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc
@@ -0,0 +1,79 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010 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/>.
+
+// Check that iterators ownership is correctly manage on swap.
+#include <vector>
+#include <forward_list>
+#include <iostream>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+  std::forward_list<int> fl1{1, 3, 5};
+  std::forward_list<int> fl2{2, 4, 6};
+
+  std::vector<std::forward_list<int>::iterator> fl1_its;
+  fl1_its.push_back(fl1.before_begin());
+  for (std::forward_list<int>::iterator it = fl1.begin();
+       it != fl1.end(); ++it)
+    {
+      fl1_its.push_back(it);
+    }
+  fl1_its.push_back(fl1.end());
+
+  std::vector<std::forward_list<int>::iterator> fl2_its;
+  fl2_its.push_back(fl2.before_begin());
+  for (std::forward_list<int>::iterator it = fl2.begin();
+       it != fl2.end(); ++it)
+    {
+      fl2_its.push_back(it);
+    }
+  fl2_its.push_back(fl2.end());
+
+  fl1.swap(fl2);
+
+  auto fit = fl1.before_begin();
+  // before-begin iterator is not transfered:
+  // TODO: Validate with LWG group how before begin should be
+  // treated.
+  VERIFY( fit == fl1_its[0] );
+  // All other iterators are, even paste-the-end ones:
+  for (size_t i = 1; i != fl2_its.size(); ++i)
+  {
+    VERIFY( ++fit == fl2_its[i] );
+  }
+
+  fit = fl2.before_begin();
+  // TODO: Validate with LWG group how before begin should be
+  // treated.
+  VERIFY( fit == fl2_its[0] );
+  for (size_t i = 1; i != fl1_its.size(); ++i)
+  {
+    VERIFY( ++fit == fl1_its[i] );
+  }
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}
-- 
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