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 #if !defined(BOOST_NO_CXX11_ALLOCATOR)
  24 template<class T>
  25 struct A2 {
  26     typedef T value_type;
  27 };
  28 #endif
  29
  30 int main()
  31 {
  32     BOOST_TEST_TRAIT_TRUE((boost::core::is_same<int*,
  33         boost::allocator_const_void_pointer<A1<char> >::type>));
  34 #if !defined(BOOST_NO_CXX11_ALLOCATOR)
  35     BOOST_TEST_TRAIT_TRUE((boost::core::is_same<const void*,
  36         boost::allocator_const_void_pointer<A2<int> >::type>));
  37 #endif
  38     return boost::report_errors();
  39 }