From a2be5f0c15218b0177d73b17d9bcb7589965d685 Mon Sep 17 00:00:00 2001
From: peter <peter@FreeBSD.org>
Date: Sun, 1 Jun 2008 00:03:21 +0000
Subject: Reorganize the gcc vendor import work area.  This flattens out a
 bunch of unnecessary path components that are relics of cvs2svn.

(These are directory moves)
---
 libstdc++/src/valarray-inst.cc | 116 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 libstdc++/src/valarray-inst.cc

(limited to 'libstdc++/src/valarray-inst.cc')

diff --git a/libstdc++/src/valarray-inst.cc b/libstdc++/src/valarray-inst.cc
new file mode 100644
index 0000000..c13e1a2
--- /dev/null
+++ b/libstdc++/src/valarray-inst.cc
@@ -0,0 +1,116 @@
+// Explicit instantiation file.
+
+// Copyright (C) 2001, 2004, 2005 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 2, 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.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+//
+// ISO C++ 14882:
+//
+
+#include <valarray>
+
+_GLIBCXX_BEGIN_NAMESPACE(std)
+
+  // Some explicit instantiations.
+  template void
+     __valarray_fill(size_t* __restrict__, size_t, const size_t&);
+  
+  template void
+     __valarray_copy(const size_t* __restrict__, size_t, size_t* __restrict__);
+  
+  template valarray<size_t>::valarray(size_t);
+  template valarray<size_t>::valarray(const valarray<size_t>&);
+  template valarray<size_t>::~valarray();
+  template size_t valarray<size_t>::size() const;
+  template size_t& valarray<size_t>::operator[](size_t);
+
+  inline size_t
+  __valarray_product(const valarray<size_t>& __a)
+  {
+    typedef const size_t* __restrict__ _Tp;
+    const size_t __n = __a.size();
+    // XXX: This ugly cast is necessary because
+    //      valarray::operator[]() const return a VALUE!
+    //      Try to get the committee to correct that gross error.
+    valarray<size_t>& __t = const_cast<valarray<size_t>&>(__a);
+    return __valarray_product(&__t[0], &__t[0] + __n);
+  }
+  
+  // Map a gslice, described by its multidimensional LENGTHS
+  // and corresponding STRIDES, to a linear array of INDEXES
+  // for the purpose of indexing a flat, one-dimensional array
+  // representation of a gslice_array.
+  void
+  __gslice_to_index(size_t __o, const valarray<size_t>& __l,
+                    const valarray<size_t>& __s, valarray<size_t>& __i)
+  {
+    // There are as much as dimensions as there are strides.
+    size_t __n = __l.size();
+
+    // Get a buffer to hold current multi-index as we go through
+    // the gslice for the purpose of computing its linear-image.
+    size_t* const __t = static_cast<size_t*>
+      (__builtin_alloca(__n * sizeof (size_t)));
+    __valarray_fill(__t, __n, size_t(0));
+
+    // Note that this should match the product of all numbers appearing
+    // in __l which describes the multidimensional sizes of the
+    // the generalized slice.
+    const size_t __z = __i.size();
+    
+    for (size_t __j = 0; __j < __z; ++__j)
+      {
+        // Compute the linear-index image of (t_0, ... t_{n-1}).
+        // Normaly, we should use inner_product<>(), but we do it the
+        // the hard way here to avoid link-time can of worms.
+        size_t __a = __o;
+        for (size_t __k = 0; __k < __n; ++__k)
+          __a += __s[__k] * __t[__k];
+
+        __i[__j] = __a;
+
+        // Process the next multi-index.  The loop ought to be
+        // backward since we're making a lexicagraphical visit.
+        ++__t[__n - 1];
+        for (size_t __k2 = __n - 1; __k2; --__k2)
+          {
+            if (__t[__k2] >= __l[__k2])
+              {
+                __t[__k2] = 0;
+                ++__t[__k2 - 1];
+              }
+          }
+      }
+  }
+  
+  gslice::_Indexer::_Indexer(size_t __o, const valarray<size_t>& __l,
+                             const valarray<size_t>& __s)
+  : _M_count(1), _M_start(__o), _M_size(__l), _M_stride(__s),
+    _M_index(__l.size() == 0 ? 0 : __valarray_product(__l))
+  { __gslice_to_index(__o, __l, __s, _M_index); }  
+
+_GLIBCXX_END_NAMESPACE
-- 
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