82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
// checking for explicit member specialization
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/***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the License); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 1999-2007 Rogue Wave Software, Inc.
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*
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**************************************************************************/
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struct A
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{
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int i_;
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// no default ctor declared to exercise the compiler's ability
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// distinguish between a declaration of an explicir member
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// specialization and a definition of the same (see below)
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A (int i): i_ (i) { }
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};
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template <class T>
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struct B {
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int foo () { return a.i_; }
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int bar ();
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static A a;
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};
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// declare explicit specialization of template members
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template <> inline int B<int>::foo ();
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template <> int B<int>::bar ();
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// make sure this is taken as a declaration and not a definition
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// as, for example, with SunPro 5.5 (see bug #411)
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template <> A B<int>::a;
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// define explicit specialization of template members
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template <> inline int B<int>::foo () { return 1; }
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template <> int B<int>::bar () { return 1; }
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template <> A B<int>::a (1);
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// define members of the primary template
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template <class T> int B<T>::bar () { return foo (); }
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template <class T> A B<T>::a (0);
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int main ()
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{
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B<char> bc;
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bc.foo ();
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bc.bar ();
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B<int> bi;
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int status = 0;
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if (1 != bi.foo ())
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status |= 1;
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if (1 != bi.bar ())
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status |= 2;
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if (1 != bi.a.i_)
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status |= 4;
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return status;
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}
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