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extern/stdcxx/4.2.1/examples/include/valarray.h

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+/**************************************************************************
+ *
+ * valarray.h -- Header for valarray examples.
+ *               Provides a valarray stream inserter.
+ *
+ * $Id: valarray.h 550991 2007-06-26 23:58:07Z sebor $
+ *
+ ***************************************************************************
+ *
+ * Licensed to the Apache Software  Foundation (ASF) under one or more
+ * contributor  license agreements.  See  the NOTICE  file distributed
+ * with  this  work  for  additional information  regarding  copyright
+ * ownership.   The ASF  licenses this  file to  you under  the Apache
+ * License, Version  2.0 (the  "License"); you may  not use  this file
+ * except in  compliance with the License.   You may obtain  a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the  License is distributed on an  "AS IS" BASIS,
+ * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
+ * implied.   See  the License  for  the  specific language  governing
+ * permissions and limitations under the License.
+ *
+ * Copyright 1994-2006 Rogue Wave Software.
+ * 
+ **************************************************************************/
+
+#ifndef VALARRAY_H_INCLUDED
+#define VALARRAY_H_INCLUDED
+
+
+#include <valarray>
+#include <ostream>
+
+#include <examples.h>
+
+template<class T> 
+inline std::ostream&
+insert_valarray (std::ostream &out, const std::valarray<T> &v)
+{
+    out << "[";
+    for (std::size_t i = 0; i < v.size (); i++) {
+        out << v [i];
+        if (i < v.size () - 1)
+            out << ",";
+    }
+    return out << "]";
+}
+
+// Non-templatized insertion operators necessary for implicit
+// conversion from slice_array<T> (etc.) to valarray<T>. (the
+// conversion won't work in template argument deduction).
+inline std::ostream& operator<< (std::ostream &out, const std::valarray<int> &v)
+{
+    return insert_valarray (out, v);
+}
+
+std::ostream& operator<< (std::ostream &out, const std::valarray<bool> &v)
+{
+    return insert_valarray (out, v);
+}
+
+#endif   // VALARRAY_H_INCLUDED