ceph/src/boost/libs/config/test/boost_no_cxx11_pointer_traits.ipp

   1 /*
   2 Copyright 2017 Glen Joseph Fernandes
   3 (glenjofe@gmail.com)
   4
   5 Distributed under Boost Software License, Version 1.0.
   6 (See accompanying file LICENSE_1_0.txt or copy at
   7 http://www.boost.org/LICENSE_1_0.txt)
   8 */
   9
  10 // MACRO: BOOST_NO_CXX11_POINTER_TRAITS
  11 // TITLE: C++11 <memory> lacks a correct std::pointer_traits
  12 // DESCRIPTION: The standard library lacks a working std::pointer_traits.
  13
  14 #include <memory>
  15
  16 namespace boost_no_cxx11_pointer_traits {
  17
  18 template<class T>
  19 struct pointer {
  20     template<class U>
  21     using rebind = pointer<bool>;
  22 };
  23
  24 template<class T>
  25 struct result { };
  26
  27 template<>
  28 struct result<pointer<bool> > {
  29     static const int value = 0;
  30 };
  31
  32 int test()
  33 {
  34     return result<std::pointer_traits<pointer<int> >::rebind<char> >::value;
  35 }
  36
  37 } /* boost_no_cxx11_pointer_traits */