--- /dev/null
+// Memory extensions -*- C++ -*-
+
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 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
+ * 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 ext/memory
+ * This file is a GNU extension to the Standard C++ Library (possibly
+ * containing extensions from the HP/SGI STL subset).
+ */
+
+#ifndef _EXT_MEMORY
+#define _EXT_MEMORY 1
+
+#pragma GCC system_header
+
+#include <memory>
+#include <bits/stl_tempbuf.h>
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ using std::ptrdiff_t;
+ using std::pair;
+ using std::__iterator_category;
+ using std::_Temporary_buffer;
+
+ template<typename _InputIter, typename _Size, typename _ForwardIter>
+ pair<_InputIter, _ForwardIter>
+ __uninitialized_copy_n(_InputIter __first, _Size __count,
+ _ForwardIter __result, std::input_iterator_tag)
+ {
+ _ForwardIter __cur = __result;
+ __try
+ {
+ for (; __count > 0 ; --__count, ++__first, ++__cur)
+ std::_Construct(&*__cur, *__first);
+ return pair<_InputIter, _ForwardIter>(__first, __cur);
+ }
+ __catch(...)
+ {
+ std::_Destroy(__result, __cur);
+ __throw_exception_again;
+ }
+ }
+
+ template<typename _RandomAccessIter, typename _Size, typename _ForwardIter>
+ inline pair<_RandomAccessIter, _ForwardIter>
+ __uninitialized_copy_n(_RandomAccessIter __first, _Size __count,
+ _ForwardIter __result,
+ std::random_access_iterator_tag)
+ {
+ _RandomAccessIter __last = __first + __count;
+ return (pair<_RandomAccessIter, _ForwardIter>
+ (__last, std::uninitialized_copy(__first, __last, __result)));
+ }
+
+ template<typename _InputIter, typename _Size, typename _ForwardIter>
+ inline pair<_InputIter, _ForwardIter>
+ __uninitialized_copy_n(_InputIter __first, _Size __count,
+ _ForwardIter __result)
+ { return __gnu_cxx::__uninitialized_copy_n(__first, __count, __result,
+ __iterator_category(__first)); }
+
+ /**
+ * @brief Copies the range [first,last) into result.
+ * @param __first An input iterator.
+ * @param __count Length
+ * @param __result An output iterator.
+ * @return __result + (__first + __count)
+ * @ingroup SGIextensions
+ *
+ * Like copy(), but does not require an initialized output range.
+ */
+ template<typename _InputIter, typename _Size, typename _ForwardIter>
+ inline pair<_InputIter, _ForwardIter>
+ uninitialized_copy_n(_InputIter __first, _Size __count,
+ _ForwardIter __result)
+ { return __gnu_cxx::__uninitialized_copy_n(__first, __count, __result,
+ __iterator_category(__first)); }
+
+
+ // An alternative version of uninitialized_copy_n that constructs
+ // and destroys objects with a user-provided allocator.
+ template<typename _InputIter, typename _Size, typename _ForwardIter,
+ typename _Allocator>
+ pair<_InputIter, _ForwardIter>
+ __uninitialized_copy_n_a(_InputIter __first, _Size __count,
+ _ForwardIter __result,
+ _Allocator __alloc)
+ {
+ _ForwardIter __cur = __result;
+ __try
+ {
+ for (; __count > 0 ; --__count, ++__first, ++__cur)
+ __alloc.construct(&*__cur, *__first);
+ return pair<_InputIter, _ForwardIter>(__first, __cur);
+ }
+ __catch(...)
+ {
+ std::_Destroy(__result, __cur, __alloc);
+ __throw_exception_again;
+ }
+ }
+
+ template<typename _InputIter, typename _Size, typename _ForwardIter,
+ typename _Tp>
+ inline pair<_InputIter, _ForwardIter>
+ __uninitialized_copy_n_a(_InputIter __first, _Size __count,
+ _ForwardIter __result,
+ std::allocator<_Tp>)
+ {
+ return __gnu_cxx::uninitialized_copy_n(__first, __count, __result);
+ }
+
+ /**
+ * This class provides similar behavior and semantics of the standard
+ * functions get_temporary_buffer() and return_temporary_buffer(), but
+ * encapsulated in a type vaguely resembling a standard container.
+ *
+ * By default, a temporary_buffer<Iter> stores space for objects of
+ * whatever type the Iter iterator points to. It is constructed from a
+ * typical [first,last) range, and provides the begin(), end(), size()
+ * functions, as well as requested_size(). For non-trivial types, copies
+ * of *first will be used to initialize the storage.
+ *
+ * @c malloc is used to obtain underlying storage.
+ *
+ * Like get_temporary_buffer(), not all the requested memory may be
+ * available. Ideally, the created buffer will be large enough to hold a
+ * copy of [first,last), but if size() is less than requested_size(),
+ * then this didn't happen.
+ *
+ * @ingroup SGIextensions
+ */
+ template <class _ForwardIterator, class _Tp
+ = typename std::iterator_traits<_ForwardIterator>::value_type >
+ struct temporary_buffer : public _Temporary_buffer<_ForwardIterator, _Tp>
+ {
+ /// Requests storage large enough to hold a copy of [first,last).
+ temporary_buffer(_ForwardIterator __first, _ForwardIterator __last)
+ : _Temporary_buffer<_ForwardIterator, _Tp>(__first, __last) { }
+
+ /// Destroys objects and frees storage.
+ ~temporary_buffer() { }
+ };
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif
+
projects / cross.git / blobdiff