boost/variant/detail/cast_storage.hpp

   1 //-----------------------------------------------------------------------------
   2 // boost variant/detail/cast_storage.hpp header file
   3 // See http://www.boost.org for updates, documentation, and revision history.
   4 //-----------------------------------------------------------------------------
   5 //
   6 // Copyright (c) 2003
   7 // Eric Friedman
   8 //
   9 // Distributed under the Boost Software License, Version 1.0. (See
  10 // accompanying file LICENSE_1_0.txt or copy at
  11 // http://www.boost.org/LICENSE_1_0.txt)
  12
  13 #ifndef BOOST_VARIANT_DETAIL_CAST_STORAGE_HPP
  14 #define BOOST_VARIANT_DETAIL_CAST_STORAGE_HPP
  15
  16 #include "boost/config.hpp"
  17
  18 namespace boost {
  19 namespace detail { namespace variant {
  20
  21 ///////////////////////////////////////////////////////////////////////////////
  22 // (detail) function template cast_storage
  23 //
  24 // Casts the given storage to the specified type, but with qualification.
  25 //
  26
  27 template <typename T>
  28 inline T& cast_storage(
  29       void* storage
  30       BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)
  31     )
  32 {
  33     return *static_cast<T*>(storage);
  34 }
  35
  36 template <typename T>
  37 inline const T& cast_storage(
  38       const void* storage
  39       BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)
  40     )
  41 {
  42     return *static_cast<const T*>(storage);
  43 }
  44
  45 }} // namespace detail::variant
  46 } // namespace boost
  47
  48 #endif // BOOST_VARIANT_DETAIL_CAST_STORAGE_HPP