cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / c++ / 4.7 / ext / numeric

diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/numeric b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/numeric
new file mode 100644 (file)
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@@ -0,0 +1,152 @@
+// Numeric extensions -*- C++ -*-
+
+// Copyright (C) 2002, 2004, 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
+ * 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/numeric
+ *  This file is a GNU extension to the Standard C++ Library (possibly
+ *  containing extensions from the HP/SGI STL subset). 
+ */
+
+#ifndef _EXT_NUMERIC
+#define _EXT_NUMERIC 1
+
+#pragma GCC system_header
+
+#include <bits/concept_check.h>
+#include <numeric>
+
+#include <ext/functional> // For identity_element
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  // Returns __x ** __n, where __n >= 0.  _Note that "multiplication"
+  // is required to be associative, but not necessarily commutative.
+  template<typename _Tp, typename _Integer, typename _MonoidOperation>
+    _Tp
+    __power(_Tp __x, _Integer __n, _MonoidOperation __monoid_op)
+    {
+      if (__n == 0)
+       return identity_element(__monoid_op);
+      else
+       {
+         while ((__n & 1) == 0)
+           {
+             __n >>= 1;
+             __x = __monoid_op(__x, __x);
+           }
+
+         _Tp __result = __x;
+         __n >>= 1;
+         while (__n != 0)
+           {
+             __x = __monoid_op(__x, __x);
+             if ((__n & 1) != 0)
+               __result = __monoid_op(__result, __x);
+             __n >>= 1;
+           }
+         return __result;
+       }
+    }
+
+  template<typename _Tp, typename _Integer>
+    inline _Tp
+    __power(_Tp __x, _Integer __n)
+    { return __power(__x, __n, std::multiplies<_Tp>()); }
+
+  /**
+   *  This is an SGI extension.
+   *  @ingroup SGIextensions
+   *  @doctodo
+  */
+  // Alias for the internal name __power.  Note that power is an extension,
+  // not part of the C++ standard.
+  template<typename _Tp, typename _Integer, typename _MonoidOperation>
+    inline _Tp
+    power(_Tp __x, _Integer __n, _MonoidOperation __monoid_op)
+    { return __power(__x, __n, __monoid_op); }
+
+  /**
+   *  This is an SGI extension.
+   *  @ingroup SGIextensions
+   *  @doctodo
+  */
+  template<typename _Tp, typename _Integer>
+    inline _Tp
+    power(_Tp __x, _Integer __n)
+    { return __power(__x, __n); }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+  using std::iota;
+#else
+  /**
+   *  This is an SGI extension.
+   *  @ingroup SGIextensions
+   *  @doctodo
+  */
+  // iota is not part of the C++ standard.  It is an extension.
+  template<typename _ForwardIter, typename _Tp>
+    void
+    iota(_ForwardIter __first, _ForwardIter __last, _Tp __value)
+    {
+      // concept requirements
+      __glibcxx_function_requires(_Mutable_ForwardIteratorConcept<_ForwardIter>)
+      __glibcxx_function_requires(_ConvertibleConcept<_Tp,
+           typename std::iterator_traits<_ForwardIter>::value_type>)
+
+      while (__first != __last)
+       *__first++ = __value++;
+    }
+#endif  // __GXX_EXPERIMENTAL_CXX0X__
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif