ceph/src/boost/libs/smart_ptr/test/allocate_unique_array_value_test.cpp

   1 /*
   2 Copyright 2019 Glen Joseph Fernandes
   3 (glenjofe@gmail.com)
   4
   5 Distributed under the Boost Software License, Version 1.0.
   6 (http://www.boost.org/LICENSE_1_0.txt)
   7 */
   8 #include <boost/config.hpp>
   9 #if (!defined(BOOST_LIBSTDCXX_VERSION) || \
  10     BOOST_LIBSTDCXX_VERSION >= 48000) && \
  11     !defined(BOOST_NO_CXX11_SMART_PTR)
  12 #include <boost/smart_ptr/allocate_unique.hpp>
  13 #include <boost/core/lightweight_test.hpp>
  14
  15 template<class T = void>
  16 struct creator {
  17     typedef T value_type;
  18     typedef T* pointer;
  19
  20     template<class U>
  21     struct rebind {
  22         typedef creator<U> other;
  23     };
  24
  25     creator() { }
  26
  27     template<class U>
  28     creator(const creator<U>&) { }
  29
  30     T* allocate(std::size_t size) {
  31         return static_cast<T*>(::operator new(sizeof(T) * size));
  32     }
  33
  34     void deallocate(T* ptr, std::size_t) {
  35         ::operator delete(ptr);
  36     }
  37 };
  38
  39 template<class T, class U>
  40 inline bool
  41 operator==(const creator<T>&, const creator<U>&)
  42 {
  43     return true;
  44 }
  45
  46 template<class T, class U>
  47 inline bool
  48 operator!=(const creator<T>&, const creator<U>&)
  49 {
  50     return false;
  51 }
  52
  53 int main()
  54 {
  55     {
  56         std::unique_ptr<int[],
  57             boost::alloc_deleter<int[], creator<int> > > result =
  58             boost::allocate_unique<int[]>(creator<int>(), 4, 1);
  59         BOOST_TEST(result[0] == 1);
  60         BOOST_TEST(result[1] == 1);
  61         BOOST_TEST(result[2] == 1);
  62         BOOST_TEST(result[3] == 1);
  63     }
  64     {
  65         std::unique_ptr<int[],
  66             boost::alloc_deleter<int[4], creator<int> > > result =
  67             boost::allocate_unique<int[4]>(creator<int>(), 1);
  68         BOOST_TEST(result[0] == 1);
  69         BOOST_TEST(result[1] == 1);
  70         BOOST_TEST(result[2] == 1);
  71         BOOST_TEST(result[3] == 1);
  72     }
  73     {
  74         std::unique_ptr<const int[],
  75             boost::alloc_deleter<const int[], creator<> > > result =
  76             boost::allocate_unique<const int[]>(creator<>(), 4, 1);
  77         BOOST_TEST(result[0] == 1);
  78         BOOST_TEST(result[1] == 1);
  79         BOOST_TEST(result[2] == 1);
  80         BOOST_TEST(result[3] == 1);
  81     }
  82     {
  83         std::unique_ptr<const int[],
  84             boost::alloc_deleter<const int[4], creator<> > > result =
  85             boost::allocate_unique<const int[4]>(creator<>(), 1);
  86         BOOST_TEST(result[0] == 1);
  87         BOOST_TEST(result[1] == 1);
  88         BOOST_TEST(result[2] == 1);
  89         BOOST_TEST(result[3] == 1);
  90     }
  91     return boost::report_errors();
  92 }
  93 #else
  94 int main()
  95 {
  96     return 0;
  97 }
  98 #endif