ceph/src/boost/boost/json/null_resource.hpp

   1 //
   2 // Copyright (c) 2020 Vinnie Falco (vinnie.falco@gmail.com)
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // Official repository: https://github.com/boostorg/json
   8 //
   9
  10 #ifndef BOOST_JSON_NULL_RESOURCE_HPP
  11 #define BOOST_JSON_NULL_RESOURCE_HPP
  12
  13 #include <boost/json/detail/config.hpp>
  14 #include <boost/json/memory_resource.hpp>
  15
  16 BOOST_JSON_NS_BEGIN
  17
  18 /** Return a pointer to the null resource.
  19
  20     This memory resource always throws the exception
  21     `std::bad_alloc` in calls to `allocate`.
  22
  23     @par Complexity
  24     Constant.
  25
  26     @par Exception Safety
  27     No-throw guarantee.
  28 */
  29 BOOST_JSON_DECL
  30 memory_resource*
  31 get_null_resource() noexcept;
  32
  33 BOOST_JSON_NS_END
  34
  35 #endif