1 files changed, 74 insertions, 0 deletions
diff --git a/gcc-4.9/libstdc++-v3/include/debug/safe_local_iterator.tcc b/gcc-4.9/libstdc++-v3/include/debug/safe_local_iterator.tcc
new file mode 100644
index 000000000..3f65f695b
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+++ b/gcc-4.9/libstdc++-v3/include/debug/safe_local_iterator.tcc
@@ -0,0 +1,74 @@
+// Debugging iterator implementation (out of line) -*- C++ -*-
+
+// Copyright (C) 2011-2014 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/>.
+
+/** @file debug/safe_local_iterator.tcc
+ *  This file is a GNU debug extension to the Standard C++ Library.
+ */
+
+#ifndef _GLIBCXX_DEBUG_SAFE_LOCAL_ITERATOR_TCC
+#define _GLIBCXX_DEBUG_SAFE_LOCAL_ITERATOR_TCC 1
+
+namespace __gnu_debug
+{
+  template<typename _Iterator, typename _Sequence>
+    bool
+    _Safe_local_iterator<_Iterator, _Sequence>::
+    _M_valid_range(const _Safe_local_iterator& __rhs) const
+    {
+      if (!_M_can_compare(__rhs))
+	return false;
+      if (bucket() != __rhs.bucket())
+	return false;
+
+      /* Determine if we can order the iterators without the help of
+	 the container */
+      std::pair<difference_type, _Distance_precision> __dist =
+	__get_distance(base(), __rhs.base());
+      switch (__dist.second)
+	{
+	case __dp_equality:
+	  if (__dist.first == 0)
+	    return true;
+	  break;
+
+	case __dp_sign:
+	case __dp_exact:
+	  return __dist.first >= 0;
+	}
+
+      /* We can only test for equality, but check if one of the
+	 iterators is at an extreme. */
+      /* Optim for classic [begin, it) or [it, end) ranges, limit checks
+       * when code is valid. */
+      if (_M_is_begin() || __rhs._M_is_end())
+	return true;
+      if (_M_is_end() || __rhs._M_is_begin())
+	return false;
+
+      // Assume that this is a valid range; we can't check anything else
+      return true;
+    }
+} // namespace __gnu_debug
+
+#endif