[v3] libstdc++/51142

Index: include/debug/unordered_map
===================================================================
--- include/debug/unordered_map	(revision 181385)
+++ include/debug/unordered_map	(working copy)
@@ -334,6 +334,10 @@ 
       }
 
       iterator
+      erase(iterator __it)
+      { return erase(const_iterator(__it)); }
+
+      iterator
       erase(const_iterator __first, const_iterator __last)
       {
 	__glibcxx_check_erase_range(__first, __last);
@@ -709,6 +713,10 @@ 
       }
 
       iterator
+      erase(iterator __it)
+      { return erase(const_iterator(__it)); }
+
+      iterator
       erase(const_iterator __first, const_iterator __last)
       {
 	__glibcxx_check_erase_range(__first, __last);
Index: include/debug/unordered_set
===================================================================
--- include/debug/unordered_set	(revision 181385)
+++ include/debug/unordered_set	(working copy)
@@ -330,6 +330,10 @@ 
       }
 
       iterator
+      erase(iterator __it)
+      { return erase(const_iterator(__it)); }
+
+      iterator
       erase(const_iterator __first, const_iterator __last)
       {
 	__glibcxx_check_erase_range(__first, __last);
@@ -696,6 +700,10 @@ 
       }
 
       iterator
+      erase(iterator __it)
+      { return erase(const_iterator(__it)); }
+
+      iterator
       erase(const_iterator __first, const_iterator __last)
       {
 	__glibcxx_check_erase_range(__first, __last);
Index: include/debug/map.h
===================================================================
--- include/debug/map.h	(revision 181385)
+++ include/debug/map.h	(working copy)
@@ -271,6 +271,10 @@ 
 	this->_M_invalidate_if(_Equal(__position.base()));
 	return iterator(_Base::erase(__position.base()), this);
       }
+
+      iterator
+      erase(iterator __position)
+      { return erase(const_iterator(__position)); }
 #else
       void
       erase(iterator __position)
Index: include/debug/multimap.h
===================================================================
--- include/debug/multimap.h	(revision 181385)
+++ include/debug/multimap.h	(working copy)
@@ -254,6 +254,10 @@ 
 	this->_M_invalidate_if(_Equal(__position.base()));
 	return iterator(_Base::erase(__position.base()), this);
       }
+
+      iterator
+      erase(iterator __position)
+      { return erase(const_iterator(__position)); }
 #else
       void
       erase(iterator __position)
Index: include/profile/map.h
===================================================================
--- include/profile/map.h	(revision 181385)
+++ include/profile/map.h	(working copy)
@@ -327,6 +327,10 @@ 
         __profcxx_map_to_unordered_map_erase(this, size(), 1);
         return __i;
       }
+
+      iterator
+      erase(iterator __position)
+      { return erase(const_iterator(__position)); }
 #else
       void
       erase(iterator __position)
Index: include/profile/multimap.h
===================================================================
--- include/profile/multimap.h	(revision 181385)
+++ include/profile/multimap.h	(working copy)
@@ -226,6 +226,10 @@ 
       iterator
       erase(const_iterator __position)
       { return iterator(_Base::erase(__position)); }
+
+      iterator
+      erase(iterator __position)
+      { return iterator(_Base::erase(__position)); }
 #else
       void
       erase(iterator __position)
Index: include/bits/hashtable.h
===================================================================
--- include/bits/hashtable.h	(revision 181359)
+++ include/bits/hashtable.h	(working copy)
@@ -432,6 +432,11 @@ 
       iterator
       erase(const_iterator);
 
+      // LWG 2059.
+      iterator
+      erase(iterator __it)
+      { return erase(const_iterator(__it)); }
+
       size_type
       erase(const key_type&);
 
Index: include/bits/stl_map.h
===================================================================
--- include/bits/stl_map.h	(revision 181359)
+++ include/bits/stl_map.h	(working copy)
@@ -617,6 +617,11 @@ 
       iterator
       erase(const_iterator __position)
       { return _M_t.erase(__position); }
+
+      // LWG 2059.
+      iterator
+      erase(iterator __position)
+      { return _M_t.erase(__position); }
 #else
       /**
        *  @brief Erases an element from a %map.
Index: include/bits/stl_multimap.h
===================================================================
--- include/bits/stl_multimap.h	(revision 181359)
+++ include/bits/stl_multimap.h	(working copy)
@@ -536,6 +536,11 @@ 
       iterator
       erase(const_iterator __position)
       { return _M_t.erase(__position); }
+
+      // LWG 2059.
+      iterator
+      erase(iterator __position)
+      { return _M_t.erase(__position); }
 #else
       /**
        *  @brief Erases an element from a %multimap.
Index: include/bits/stl_tree.h
===================================================================
--- include/bits/stl_tree.h	(revision 181359)
+++ include/bits/stl_tree.h	(working copy)
@@ -767,6 +767,16 @@ 
 	_M_erase_aux(__position);
 	return __result._M_const_cast();
       }
+
+      // LWG 2059.
+      iterator
+      erase(iterator __position)
+      {
+	iterator __result = __position;
+	++__result;
+	_M_erase_aux(__position);
+	return __result;
+      }
 #else
       void
       erase(iterator __position)
Index: testsuite/23_containers/unordered_map/erase/51142.cc
===================================================================
--- testsuite/23_containers/unordered_map/erase/51142.cc	(revision 0)
+++ testsuite/23_containers/unordered_map/erase/51142.cc	(revision 0)
@@ -0,0 +1,38 @@ 
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <unordered_map>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator==(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::unordered_map<X, int>& s, X x)
+{
+  std::unordered_map<X, int>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}
Index: testsuite/23_containers/multimap/modifiers/erase/51142.cc
===================================================================
--- testsuite/23_containers/multimap/modifiers/erase/51142.cc	(revision 0)
+++ testsuite/23_containers/multimap/modifiers/erase/51142.cc	(revision 0)
@@ -0,0 +1,38 @@ 
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <map>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator<(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::multimap<X, int>& s, X x)
+{
+  std::multimap<X, int>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}
Index: testsuite/23_containers/set/modifiers/erase/51142.cc
===================================================================
--- testsuite/23_containers/set/modifiers/erase/51142.cc	(revision 0)
+++ testsuite/23_containers/set/modifiers/erase/51142.cc	(revision 0)
@@ -0,0 +1,38 @@ 
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <set>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator<(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::set<X>& s, X x)
+{
+  std::set<X>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}
Index: testsuite/23_containers/unordered_multimap/erase/51142.cc
===================================================================
--- testsuite/23_containers/unordered_multimap/erase/51142.cc	(revision 0)
+++ testsuite/23_containers/unordered_multimap/erase/51142.cc	(revision 0)
@@ -0,0 +1,38 @@ 
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <unordered_map>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator==(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::unordered_multimap<X, int>& s, X x)
+{
+  std::unordered_multimap<X, int>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}
Index: testsuite/23_containers/unordered_set/erase/51142.cc
===================================================================
--- testsuite/23_containers/unordered_set/erase/51142.cc	(revision 0)
+++ testsuite/23_containers/unordered_set/erase/51142.cc	(revision 0)
@@ -0,0 +1,38 @@ 
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <unordered_set>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator==(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::unordered_set<X>& s, X x)
+{
+  std::unordered_set<X>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}
Index: testsuite/23_containers/multiset/modifiers/erase/51142.cc
===================================================================
--- testsuite/23_containers/multiset/modifiers/erase/51142.cc	(revision 0)
+++ testsuite/23_containers/multiset/modifiers/erase/51142.cc	(revision 0)
@@ -0,0 +1,38 @@ 
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <set>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator<(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::multiset<X>& s, X x)
+{
+  std::multiset<X>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}
Index: testsuite/23_containers/unordered_multiset/erase/51142.cc
===================================================================
--- testsuite/23_containers/unordered_multiset/erase/51142.cc	(revision 0)
+++ testsuite/23_containers/unordered_multiset/erase/51142.cc	(revision 0)
@@ -0,0 +1,38 @@ 
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <unordered_set>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator==(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::unordered_multiset<X>& s, X x)
+{
+  std::unordered_multiset<X>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}
Index: testsuite/23_containers/map/modifiers/erase/51142.cc
===================================================================
--- testsuite/23_containers/map/modifiers/erase/51142.cc	(revision 0)
+++ testsuite/23_containers/map/modifiers/erase/51142.cc	(revision 0)
@@ -0,0 +1,38 @@ 
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <map>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator<(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::map<X, int>& s, X x)
+{
+  std::map<X, int>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}