1 files changed, 50 insertions, 0 deletions
diff --git a/libstdc++/valarray.cc b/libstdc++/valarray.cc
new file mode 100644
index 00000000000..5e7fe0cf05f
--- /dev/null
+++ b/libstdc++/valarray.cc
@@ -0,0 +1,50 @@
+#include <std/std_valarray.h>
+
+// Some Explicit Instanciations.
+template class multiplies<size_t>;
+template size_t accumulate(size_t*, size_t*, size_t, multiplies<size_t>);
+
+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();
+template valarray<size_t>::valarray(const valarray<size_t>&);
+template size_t valarray<size_t>::size() const;
+template size_t& valarray<size_t>::operator[](size_t);
+template size_t valarray<size_t>::product() const;
+
+
+void __gslice_to_index(size_t __o, const valarray<size_t>& __l,
+                       const valarray<size_t>& __s,
+                       valarray<size_t>& __i)
+{
+    const size_t __n = __l.size();
+    size_t* const __t = static_cast<size_t*>(alloca(__n*sizeof(size_t)));
+    __valarray_fill(__t, __n, size_t(0));
+    const size_t __z = __i.size();
+    __valarray_fill(&__i[0], __z, __o);
+    for (size_t __j=0; __j<__z; ++__j) {
+        for (size_t __k=0; __k<__n; ++__k)
+            __i[__j] += __s[__k]*__t[__k];
+        ++__t[__n-1];
+        for (size_t __k=__n-1; __k; --__k) {
+            if (__t[__k] >= __l[__k]) {
+                __t[__k] = 0;
+                ++__t[__k-1];
+            }
+        }
+    }
+}
+
+_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() ? __l.product() : 0)
+{ __gslice_to_index(__o, __l, __s, _M_index); }
+
+
+