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extern/stdcxx/4.2.1/examples/manual/wostream.cpp

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+/***************************************************************************
+ *
+ * ostream2.cpp - ostream example
+ *
+ * $Id: wostream.cpp 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.
+ * 
+ **************************************************************************/
+ 
+#include <iostream>   // for wcout, wostream, endl
+#include <sstream>    // for wistringstream
+
+#include <examples.h>
+
+
+int main ()
+{
+    const double f = 3.1415926;
+
+    const wchar_t s[] = { 'K', 'e', 'n', 'a', 'v', 'o', ' ', '!', '\0' };
+
+    // create a read/write stringbuf object on wide char
+    // and attach it to an wistringstream object
+    std::wistringstream in (std::wios::in | std::wios::out);
+      
+    // tie the wostream object to the wistringstream object
+    std::wostream out (in.rdbuf ());
+
+    out << L"test beginning !" << std::endl;
+    out.setf (std::wios::fixed, std::wios::floatfield);
+
+    // output f in fixed format
+    out << f << std::endl; 
+
+    // store the current put-pointer position  
+    std::wostream::pos_type pos = out.tellp ();
+
+    // output s 
+    out << s << std::endl;
+
+    // output the all buffer to standard output
+    std::wcout << in.rdbuf () << std::endl;
+
+    // position the get-pointer
+    in.seekg (pos);
+
+    // output s
+    std::wcout << in.rdbuf () << std::endl;         
+
+    return 0;
+}