73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/************************************************************************
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*
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* 21.string.stdcxx-162.cpp - regression test for STDCXX-162
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*
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* https://issues.apache.org/jira/browse/STDCXX-162
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*
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* $Id: 21.string.stdcxx-162.cpp 648752 2008-04-16 17:01:56Z faridz $
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*
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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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**************************************************************************/
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#include <cassert>
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#include <string>
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#ifdef _RWSTD_POSIX_THREADS
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# include <pthread.h>
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# define MUTEX pthread_mutex_t
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#elif _RWSTD_SOLARIS_THREADS
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# include <thread.h>
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# define MUTEX mutex_t
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#endif // _RWSTD_POSIX_THREADS
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int main ()
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{
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typedef std::char_traits<char> Traits;
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typedef std::allocator<char> Allocator;
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typedef __rw::__string_ref<char, Traits, Allocator> strref;
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struct SmallRef {
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int ref_count;
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std::string::size_type capacity;
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std::string::size_type size;
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};
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// verify that the reference-counted string body isn't bigger
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// than the struct above
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assert (sizeof (strref) <= sizeof (SmallRef));
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#ifdef MUTEX
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struct LargeRef {
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MUTEX mutex;
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int ref_count;
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std::string::size_type capacity;
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std::string::size_type size;
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};
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// verify that the reference-counted string body is smaller
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// than the struct containing a full-blown mutex object above
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assert (sizeof (strref) < sizeof (LargeRef));
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#endif // MUTEX
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return 0;
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}
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