mirror of
https://github.com/boostorg/smart_ptr.git
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88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
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/*
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* Copyright (c) 2012 Glen Joseph Fernandes
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* glenfe at live dot com
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*
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* Distributed under the Boost Software License,
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* Version 1.0. (See accompanying file LICENSE_1_0.txt
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* or copy at http://boost.org/LICENSE_1_0.txt)
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*/
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/smart_ptr/allocate_shared_array.hpp>
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#include <boost/smart_ptr/weak_ptr.hpp>
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#include <boost/type_traits/alignment_of.hpp>
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class type {
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public:
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static unsigned int instances;
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explicit type(int = 0, int = 0)
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: member() {
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instances++;
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}
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~type() {
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instances--;
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}
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private:
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type(const type&);
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type& operator=(const type&);
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double member;
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};
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unsigned int type::instances = 0;
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int main() {
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{
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boost::shared_ptr<int[]> a1 = boost::allocate_shared<int[]>(std::allocator<int>(), 3);
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int* a2 = a1.get();
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BOOST_TEST(a1.use_count() == 1);
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BOOST_TEST(a2 != 0);
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BOOST_TEST(size_t(a2) % boost::alignment_of<int>::value == 0);
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BOOST_TEST(a1[0] == 0);
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BOOST_TEST(a1[1] == 0);
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BOOST_TEST(a1[2] == 0);
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}
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{
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boost::shared_ptr<const int[]> a1 = boost::allocate_shared<const int[]>(std::allocator<int>(), 3);
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const int* a2 = a1.get();
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BOOST_TEST(a1.use_count() == 1);
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BOOST_TEST(a2 != 0);
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BOOST_TEST(size_t(a2) % boost::alignment_of<int>::value == 0);
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BOOST_TEST(a1[0] == 0);
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BOOST_TEST(a1[1] == 0);
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BOOST_TEST(a1[2] == 0);
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}
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BOOST_TEST(type::instances == 0);
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{
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boost::shared_ptr<type[]> a1 = boost::allocate_shared<type[]>(std::allocator<type>(), 3);
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type* a2 = a1.get();
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BOOST_TEST(a1.use_count() == 1);
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BOOST_TEST(a2 != 0);
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BOOST_TEST(size_t(a2) % boost::alignment_of<type>::value == 0);
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BOOST_TEST(type::instances == 3);
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boost::weak_ptr<type[]> w1 = a1;
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a1.reset();
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BOOST_TEST(type::instances == 0);
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}
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BOOST_TEST(type::instances == 0);
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{
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boost::shared_ptr<const type[]> a1 = boost::allocate_shared<const type[]>(std::allocator<type>(), 3);
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const type* a2 = a1.get();
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BOOST_TEST(a1.use_count() == 1);
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BOOST_TEST(a2 != 0);
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BOOST_TEST(size_t(a2) % boost::alignment_of<type>::value == 0);
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BOOST_TEST(type::instances == 3);
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}
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#if defined(BOOST_HAS_VARIADIC_TMPL) && defined(BOOST_HAS_RVALUE_REFS)
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BOOST_TEST(type::instances == 0);
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{
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boost::shared_ptr<type[]> a1 = boost::allocate_shared<type[]>(std::allocator<type>(), 3, 1, 5);
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type* a2 = a1.get();
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BOOST_TEST(type::instances == 3);
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BOOST_TEST(a2 != 0);
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BOOST_TEST(size_t(a2) % boost::alignment_of<type>::value == 0);
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a1.reset();
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BOOST_TEST(type::instances == 0);
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}
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#endif
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return boost::report_errors();
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}
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