| /* |
| Copyright 2019 Glen Joseph Fernandes |
| (glenjofe@gmail.com) |
| |
| Distributed under the Boost Software License, Version 1.0. |
| (http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| #include <boost/config.hpp> |
| #if (!defined(BOOST_LIBSTDCXX_VERSION) || \ |
| BOOST_LIBSTDCXX_VERSION >= 46000) && \ |
| !defined(BOOST_NO_CXX11_SMART_PTR) && \ |
| !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) |
| #include <boost/smart_ptr/allocate_unique.hpp> |
| #include <boost/core/lightweight_test.hpp> |
| |
| template<class T = void> |
| struct creator { |
| typedef T value_type; |
| typedef T* pointer; |
| |
| template<class U> |
| struct rebind { |
| typedef creator<U> other; |
| }; |
| |
| creator() { } |
| |
| template<class U> |
| creator(const creator<U>&) { } |
| |
| T* allocate(std::size_t size) { |
| return static_cast<T*>(::operator new(sizeof(T) * size)); |
| } |
| |
| void deallocate(T* ptr, std::size_t) { |
| ::operator delete(ptr); |
| } |
| }; |
| |
| template<class T, class U> |
| inline bool |
| operator==(const creator<T>&, const creator<U>&) |
| { |
| return true; |
| } |
| |
| template<class T, class U> |
| inline bool |
| operator!=(const creator<T>&, const creator<U>&) |
| { |
| return false; |
| } |
| |
| class type { |
| public: |
| static unsigned instances; |
| |
| type(int v1, int v2, int v3, int v4, int v5) |
| : sum_(v1 + v2 + v3 + v4 + v5) { |
| ++instances; |
| } |
| |
| ~type() { |
| --instances; |
| } |
| |
| int sum() const { |
| return sum_; |
| } |
| |
| private: |
| int sum_; |
| |
| type(const type&); |
| type& operator=(const type&); |
| }; |
| |
| unsigned type::instances = 0; |
| |
| int main() |
| { |
| BOOST_TEST(type::instances == 0); |
| { |
| std::unique_ptr<type, |
| boost::alloc_deleter<type, creator<type> > > result = |
| boost::allocate_unique<type>(creator<type>(), 1, 2, 3, 4, 5); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 1); |
| BOOST_TEST(result->sum() == 15); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| BOOST_TEST(type::instances == 0); |
| { |
| std::unique_ptr<const type, |
| boost::alloc_deleter<const type, creator<> > > result = |
| boost::allocate_unique<const type>(creator<>(), 1, 2, 3, 4, 5); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 1); |
| BOOST_TEST(result->sum() == 15); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| return boost::report_errors(); |
| } |
| #else |
| int main() |
| { |
| return 0; |
| } |
| #endif |