ceph/src/boost/libs/winapi/include/boost/detail/winapi/detail/cast_ptr.hpp

   1 //  cast_ptr.hpp  --------------------------------------------------------------//
   2
   3 //  Copyright 2015 Andrey Semashev
   4
   5 //  Distributed under the Boost Software License, Version 1.0.
   6 //  See http://www.boost.org/LICENSE_1_0.txt
   7
   8
   9 #ifndef BOOST_DETAIL_WINAPI_DETAIL_CAST_PTR_HPP
  10 #define BOOST_DETAIL_WINAPI_DETAIL_CAST_PTR_HPP
  11
  12 #include <boost/detail/winapi/config.hpp>
  13
  14 #ifdef BOOST_HAS_PRAGMA_ONCE
  15 #pragma once
  16 #endif
  17
  18 namespace boost {
  19 namespace detail {
  20 namespace winapi {
  21 namespace detail {
  22
  23 //! This class is used to automatically cast pointers to the type used in the current Windows SDK function declarations
  24 class cast_ptr
  25 {
  26 private:
  27     const void* m_p;
  28
  29 public:
  30     explicit BOOST_FORCEINLINE cast_ptr(const void* p) BOOST_NOEXCEPT : m_p(p) {}
  31     template< typename T >
  32     BOOST_FORCEINLINE operator T* () const BOOST_NOEXCEPT { return (T*)m_p; }
  33 };
  34
  35 }
  36 }
  37 }
  38 }
  39
  40 #endif // BOOST_DETAIL_WINAPI_DETAIL_CAST_PTR_HPP