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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
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if you have obtained the source via the command 'git clone',
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1 files changed, 273 insertions, 0 deletions

diff --git a/libstdc++-v3/include/bits/stl_tempbuf.h b/libstdc++-v3/include/bits/stl_tempbuf.h
new file mode 100644
index 000000000..a99dac930
--- /dev/null
+++ b/libstdc++-v3/include/bits/stl_tempbuf.h
@@ -0,0 +1,273 @@
+// Temporary buffer implementation -*- C++ -*-
+
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 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.
+
+// 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.
+ */
+
+/** @file bits/stl_tempbuf.h
+ *  This is an internal header file, included by other library headers.
+ *  Do not attempt to use it directly. @headername{memory}
+ */
+
+#ifndef _STL_TEMPBUF_H
+#define _STL_TEMPBUF_H 1
+
+#include <bits/stl_algobase.h>
+#include <bits/stl_construct.h>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  /**
+   *  @brief Allocates a temporary buffer.
+   *  @param  len  The number of objects of type Tp.
+   *  @return See full description.
+   *
+   *  Reinventing the wheel, but this time with prettier spokes!
+   *
+   *  This function tries to obtain storage for @c len adjacent Tp
+   *  objects.  The objects themselves are not constructed, of course.
+   *  A pair<> is returned containing <em>the buffer s address and
+   *  capacity (in the units of sizeof(Tp)), or a pair of 0 values if
+   *  no storage can be obtained.</em>  Note that the capacity obtained
+   *  may be less than that requested if the memory is unavailable;
+   *  you should compare len with the .second return value.
+   *
+   * Provides the nothrow exception guarantee.
+   */
+  template<typename _Tp>
+    pair<_Tp*, ptrdiff_t>
+    get_temporary_buffer(ptrdiff_t __len)
+    {
+      const ptrdiff_t __max =
+	__gnu_cxx::__numeric_traits<ptrdiff_t>::__max / sizeof(_Tp);
+      if (__len > __max)
+	__len = __max;
+      
+      while (__len > 0) 
+	{
+	  _Tp* __tmp = static_cast<_Tp*>(::operator new(__len * sizeof(_Tp), 
+							std::nothrow));
+	  if (__tmp != 0)
+	    return std::pair<_Tp*, ptrdiff_t>(__tmp, __len);
+	  __len /= 2;
+	}
+      return std::pair<_Tp*, ptrdiff_t>(static_cast<_Tp*>(0), 0);
+    }
+
+  /**
+   *  @brief The companion to get_temporary_buffer().
+   *  @param  p  A buffer previously allocated by get_temporary_buffer.
+   *  @return   None.
+   *
+   *  Frees the memory pointed to by p.
+   */
+  template<typename _Tp>
+    inline void
+    return_temporary_buffer(_Tp* __p)
+    { ::operator delete(__p, std::nothrow); }
+
+
+  /**
+   *  This class is used in two places: stl_algo.h and ext/memory,
+   *  where it is wrapped as the temporary_buffer class.  See
+   *  temporary_buffer docs for more notes.
+   */
+  template<typename _ForwardIterator, typename _Tp>
+    class _Temporary_buffer
+    {
+      // concept requirements
+      __glibcxx_class_requires(_ForwardIterator, _ForwardIteratorConcept)
+
+    public:
+      typedef _Tp         value_type;
+      typedef value_type* pointer;
+      typedef pointer     iterator;
+      typedef ptrdiff_t   size_type;
+
+    protected:
+      size_type  _M_original_len;
+      size_type  _M_len;
+      pointer    _M_buffer;
+
+    public:
+      /// As per Table mumble.
+      size_type
+      size() const
+      { return _M_len; }
+
+      /// Returns the size requested by the constructor; may be >size().
+      size_type
+      requested_size() const
+      { return _M_original_len; }
+
+      /// As per Table mumble.
+      iterator
+      begin()
+      { return _M_buffer; }
+
+      /// As per Table mumble.
+      iterator
+      end()
+      { return _M_buffer + _M_len; }
+
+      /**
+       * Constructs a temporary buffer of a size somewhere between
+       * zero and the size of the given range.
+       */
+      _Temporary_buffer(_ForwardIterator __first, _ForwardIterator __last);
+
+      ~_Temporary_buffer()
+      {
+	std::_Destroy(_M_buffer, _M_buffer + _M_len);
+	std::return_temporary_buffer(_M_buffer);
+      }
+
+    private:
+      // Disable copy constructor and assignment operator.
+      _Temporary_buffer(const _Temporary_buffer&);
+
+      void
+      operator=(const _Temporary_buffer&);
+    };
+
+
+  template<bool>
+    struct __uninitialized_construct_buf_dispatch
+    {
+      template<typename _ForwardIterator, typename _Tp>
+        static void
+        __ucr(_ForwardIterator __first, _ForwardIterator __last,
+	      _Tp& __value)
+        {
+	  if(__first == __last)
+	    return;
+
+	  _ForwardIterator __cur = __first;
+	  __try
+	    {
+	      std::_Construct(std::__addressof(*__first),
+			      _GLIBCXX_MOVE(__value));
+	      _ForwardIterator __prev = __cur;
+	      ++__cur;
+	      for(; __cur != __last; ++__cur, ++__prev)
+		std::_Construct(std::__addressof(*__cur),
+				_GLIBCXX_MOVE(*__prev));
+	      __value = _GLIBCXX_MOVE(*__prev);
+	    }
+	  __catch(...)
+	    {
+	      std::_Destroy(__first, __cur);
+	      __throw_exception_again;
+	    }
+	}
+    };
+
+  template<>
+    struct __uninitialized_construct_buf_dispatch<true>
+    {
+      template<typename _ForwardIterator, typename _Tp>
+        static void
+        __ucr(_ForwardIterator, _ForwardIterator, _Tp&) { }
+    };
+
+  // Constructs objects in the range [first, last).
+  // Note that while these new objects will take valid values,
+  // their exact value is not defined. In particular they may
+  // be 'moved from'.
+  //
+  // While __value may altered during this algorithm, it will have
+  // the same value when the algorithm finishes, unless one of the
+  // constructions throws.
+  //
+  // Requirements: _ForwardIterator::value_type(_Tp&&) is valid.
+  template<typename _ForwardIterator, typename _Tp>
+    inline void
+    __uninitialized_construct_buf(_ForwardIterator __first,
+				  _ForwardIterator __last,
+				  _Tp& __value)
+    {
+      typedef typename std::iterator_traits<_ForwardIterator>::value_type
+	_ValueType;
+
+      std::__uninitialized_construct_buf_dispatch<
+        __has_trivial_constructor(_ValueType)>::
+	  __ucr(__first, __last, __value);
+    }
+
+  template<typename _ForwardIterator, typename _Tp>
+    _Temporary_buffer<_ForwardIterator, _Tp>::
+    _Temporary_buffer(_ForwardIterator __first, _ForwardIterator __last)
+    : _M_original_len(std::distance(__first, __last)),
+      _M_len(0), _M_buffer(0)
+    {
+      __try
+	{
+	  std::pair<pointer, size_type> __p(std::get_temporary_buffer<
+					    value_type>(_M_original_len));
+	  _M_buffer = __p.first;
+	  _M_len = __p.second;
+	  if(_M_buffer)
+	    std::__uninitialized_construct_buf(_M_buffer, _M_buffer + _M_len,
+					       *__first);
+	}
+      __catch(...)
+	{
+	  std::return_temporary_buffer(_M_buffer);
+	  _M_buffer = 0;
+	  _M_len = 0;
+	  __throw_exception_again;
+	}
+    }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif /* _STL_TEMPBUF_H */
+