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extern/stdcxx/4.2.1/tests/regress/27.streambuf.imbue.stdcxx-307.cpp

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+/************************************************************************
+ *
+ * 27.streambuf.imbue.stdcxx-307.cpp - test case from STDCXX-307 issue
+ *
+ * $Id: 27.streambuf.imbue.stdcxx-307.cpp 597670 2007-11-23 14:11:16Z faridz $
+ *
+ ***************************************************************************
+ *
+ * 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.
+ * 
+ **************************************************************************/
+
+#include <cassert>
+#include <locale>
+#include <streambuf>
+
+struct MyFacet: std::locale::facet
+{
+    static std::locale::id id;
+};
+
+std::locale::id MyFacet::id;
+
+int main ()
+{
+    struct MyBuf: std::streambuf {
+        void imbue (const std::locale &loc) {
+            std::streambuf::imbue (loc);
+        }
+    } buf;
+
+    const std::locale loc (buf.getloc (), new MyFacet);
+
+    assert (_STD_HAS_FACET (MyFacet, loc));
+    assert (!_STD_HAS_FACET (MyFacet, buf.getloc ()));
+
+    buf.imbue (loc);
+
+    assert (!_STD_HAS_FACET (MyFacet, buf.getloc ()));
+
+    buf.pubimbue (loc);
+
+    assert (_STD_HAS_FACET (MyFacet, buf.getloc ()));
+
+    return 0;
+}