ceph/src/boost/libs/core/test/allocator_const_void_pointer_test.cpp

   1 /*
   2 Copyright 2020 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/core/allocator_access.hpp>
   9 #include <boost/core/is_same.hpp>
  10 #include <boost/core/lightweight_test_trait.hpp>
  11
  12 template<class T>
  13 struct A1 {
  14     typedef T value_type;
  15     typedef int* const_pointer;
  16     typedef int* const_void_pointer;
  17     template<class U>
  18     struct rebind {
  19         typedef A1<U> other;
  20     };
  21 };
  22
  23 template<class T>
  24 struct A2 {
  25     typedef T value_type;
  26 };
  27
  28 int main()
  29 {
  30     BOOST_TEST_TRAIT_TRUE((boost::core::is_same<int*,
  31         boost::allocator_const_void_pointer<A1<char> >::type>));
  32     BOOST_TEST_TRAIT_TRUE((boost::core::is_same<const void*,
  33         boost::allocator_const_void_pointer<A2<int> >::type>));
  34     return boost::report_errors();
  35 }