| /* |
| 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 >= 48000) && \ |
| !defined(BOOST_NO_CXX11_SMART_PTR) && \ |
| !defined(BOOST_NO_CXX11_ALLOCATOR) |
| #include <boost/smart_ptr/allocate_unique.hpp> |
| #include <boost/core/lightweight_test.hpp> |
| |
| struct allow { }; |
| |
| template<class T = void> |
| struct creator { |
| typedef T value_type; |
| |
| 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 U> |
| void construct(U* ptr) { |
| ::new(static_cast<void*>(ptr)) U(allow()); |
| } |
| |
| template<class U> |
| void destroy(U* ptr) { |
| ptr->~U(); |
| } |
| |
| }; |
| |
| 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; |
| |
| explicit type(allow) { |
| ++instances; |
| } |
| |
| ~type() { |
| --instances; |
| } |
| |
| private: |
| type(const type&); |
| type& operator=(const type&); |
| }; |
| |
| unsigned type::instances = 0; |
| |
| int main() |
| { |
| { |
| std::unique_ptr<type[], |
| boost::alloc_deleter<type[], creator<type> > > result = |
| boost::allocate_unique<type[]>(creator<type>(), 3); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 3); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| { |
| std::unique_ptr<type[], |
| boost::alloc_deleter<type[3], creator<type> > > result = |
| boost::allocate_unique<type[3]>(creator<type>()); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 3); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| { |
| std::unique_ptr<type[][2], |
| boost::alloc_deleter<type[][2], creator<> > > result = |
| boost::allocate_unique<type[][2]>(creator<>(), 2); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 4); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| { |
| std::unique_ptr<type[][2], |
| boost::alloc_deleter<type[2][2], creator<> > > result = |
| boost::allocate_unique<type[2][2]>(creator<>()); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 4); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| { |
| std::unique_ptr<const type[], |
| boost::alloc_deleter<const type[], creator<> > > result = |
| boost::allocate_unique<const type[]>(creator<>(), 3); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 3); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| { |
| std::unique_ptr<const type[], |
| boost::alloc_deleter<const type[3], creator<> > > result = |
| boost::allocate_unique<const type[3]>(creator<>()); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 3); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| { |
| std::unique_ptr<const type[][2], |
| boost::alloc_deleter<const type[][2], creator<> > > result = |
| boost::allocate_unique<const type[][2]>(creator<>(), 2); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 4); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| { |
| std::unique_ptr<const type[][2], |
| boost::alloc_deleter<const type[2][2], creator<> > > result = |
| boost::allocate_unique<const type[2][2]>(creator<>()); |
| BOOST_TEST(result.get() != 0); |
| BOOST_TEST(type::instances == 4); |
| result.reset(); |
| BOOST_TEST(type::instances == 0); |
| } |
| return boost::report_errors(); |
| } |
| #else |
| int main() |
| { |
| return 0; |
| } |
| #endif |