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71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
//***************************************************************************
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// apps/testing/cxx/cxxsize/weak_ptr.cxx
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//
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// SPDX-License-Identifier: Apache-2.0
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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 with
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// this work for additional information regarding copyright ownership. The
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// ASF licenses this file to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance with the
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// License. You may obtain a copy of 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, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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//
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//***************************************************************************
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//***************************************************************************
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// Included Files
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//***************************************************************************
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#include <memory>
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//***************************************************************************
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// Private Classes
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//***************************************************************************
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//***************************************************************************
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// Private Data
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//***************************************************************************
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//***************************************************************************
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// Public Functions
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//***************************************************************************
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//***************************************************************************
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// Name: weak_ptr_main
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//***************************************************************************/
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extern "C" int main(int argc, FAR char *argv[])
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{
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std::weak_ptr<int> weak_ptr;
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std::shared_ptr<int> shared_ptr(new int(10));
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weak_ptr = shared_ptr;
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if (weak_ptr.expired())
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{
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return 1;
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}
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if (weak_ptr.lock() != shared_ptr)
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{
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return 1;
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}
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shared_ptr.reset();
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if (weak_ptr.use_count())
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{
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return 1;
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}
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return 0;
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}
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