Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / src / list.cc

diff --git a/libstdc++-v3/src/list.cc b/libstdc++-v3/src/list.cc
new file mode 100644 (file)
index 0000000..e5523b9
--- /dev/null
+++ b/libstdc++-v3/src/list.cc
@@ -0,0 +1,138 @@
+// std::list utilities implementation -*- C++ -*-
+
+// Copyright (C) 2003, 2005, 2009 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/>.
+
+/*
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation.  Hewlett-Packard Company makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ *
+ * Copyright (c) 1996,1997
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation.  Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ */
+
+#include <list>
+
+_GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD_D)
+
+  void
+  _List_node_base::swap(_List_node_base& __x, _List_node_base& __y)
+  {
+    if ( __x._M_next != &__x )
+    {
+      if ( __y._M_next != &__y )
+      {
+        // Both __x and __y are not empty.
+        std::swap(__x._M_next,__y._M_next);
+        std::swap(__x._M_prev,__y._M_prev);
+        __x._M_next->_M_prev = __x._M_prev->_M_next = &__x;
+        __y._M_next->_M_prev = __y._M_prev->_M_next = &__y;
+      }
+      else
+      {
+        // __x is not empty, __y is empty.
+        __y._M_next = __x._M_next;
+        __y._M_prev = __x._M_prev;
+        __y._M_next->_M_prev = __y._M_prev->_M_next = &__y;        
+        __x._M_next = __x._M_prev = &__x;
+      }
+    }
+    else if ( __y._M_next != &__y )
+    {
+      // __x is empty, __y is not empty.
+      __x._M_next = __y._M_next;
+      __x._M_prev = __y._M_prev;
+      __x._M_next->_M_prev = __x._M_prev->_M_next = &__x;      
+      __y._M_next = __y._M_prev = &__y;
+    }
+  }
+
+  void
+  _List_node_base::transfer(_List_node_base * const __first,
+                            _List_node_base * const __last)
+  {
+    if (this != __last)
+    {
+      // Remove [first, last) from its old position.
+      __last->_M_prev->_M_next  = this;
+      __first->_M_prev->_M_next = __last;
+      this->_M_prev->_M_next    = __first;
+  
+      // Splice [first, last) into its new position.
+      _List_node_base* const __tmp = this->_M_prev;
+      this->_M_prev                = __last->_M_prev;
+      __last->_M_prev              = __first->_M_prev;
+      __first->_M_prev             = __tmp;
+    }
+  }
+
+  void
+  _List_node_base::reverse()
+  {
+    _List_node_base* __tmp = this;
+    do
+    {
+      std::swap(__tmp->_M_next, __tmp->_M_prev);
+
+      // Old next node is now prev.
+      __tmp = __tmp->_M_prev;     
+    } 
+    while (__tmp != this);
+  }
+
+  void
+  _List_node_base::hook(_List_node_base* const __position)
+  {
+    this->_M_next = __position;
+    this->_M_prev = __position->_M_prev;
+    __position->_M_prev->_M_next = this;
+    __position->_M_prev = this;
+  }
+
+  void
+  _List_node_base::unhook()
+  {
+    _List_node_base* const __next_node = this->_M_next;
+    _List_node_base* const __prev_node = this->_M_prev;
+    __prev_node->_M_next = __next_node;
+    __next_node->_M_prev = __prev_node;
+  }
+
+_GLIBCXX_END_NESTED_NAMESPACE