first commit

extern/stdcxx/4.2.1/etc/config/src/EXPLICIT_MEMBER_SPECIALIZATION.cpp

@@ -0,0 +1,81 @@
+// checking for explicit member specialization
+
+/***************************************************************************
+ *
+ * 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 1999-2007 Rogue Wave Software, Inc.
+ * 
+ **************************************************************************/
+
+struct A
+{
+    int i_;
+
+    // no default ctor declared to exercise the compiler's ability
+    // distinguish between a declaration of an explicir member
+    // specialization and a definition of the same (see below)
+    A (int i): i_ (i) { }
+};
+
+template <class T>
+struct B {
+
+    int foo () { return a.i_; }
+    int bar ();
+
+    static A a;
+};
+
+// declare explicit specialization of template members
+template <> inline int B<int>::foo ();
+template <> int B<int>::bar ();
+
+// make sure this is taken as a declaration and not a definition
+// as, for example, with SunPro 5.5 (see bug #411)
+template <> A B<int>::a;
+
+// define explicit specialization of template members
+template <> inline int B<int>::foo () { return 1; }
+template <> int B<int>::bar () { return 1; }
+template <> A B<int>::a (1);
+
+// define members of the primary template
+template <class T> int B<T>::bar () { return foo (); }
+template <class T> A B<T>::a (0);
+
+int main ()
+{
+    B<char> bc;
+    bc.foo ();
+    bc.bar ();
+
+    B<int> bi;
+
+    int status = 0;
+
+    if (1 != bi.foo ())
+        status |= 1;
+
+    if (1 != bi.bar ())
+        status |= 2;
+
+    if (1 != bi.a.i_)
+        status |= 4;
+
+    return status;
+}