ceph/src/boost/libs/phoenix/include/boost/phoenix/config.hpp

   1 /*==============================================================================
   2     Copyright (c) 2001-2010 Joel de Guzman
   3     Copyright (c) 2010      Eric Niebler
   4     Copyright (c) 2014-2015 John Fletcher
   5     Copyright (c) 2016      Kohei Takahashi
   6
   7     Distributed under the Boost Software License, Version 1.0. (See accompanying
   8     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 ==============================================================================*/
  10 #ifndef BOOST_PHOENIX_CONFIG_HPP
  11 #define BOOST_PHOENIX_CONFIG_HPP
  12
  13 #include <boost/config.hpp>
  14 #include <boost/detail/workaround.hpp>
  15
  16 //////////////////////////////////////////////////////////////////////////
  17 // This section is to sort out whether hash types or unordered types
  18 // are available. This depends on whether stdlib or libc++ is being used
  19 // and also whether C++11 or C++03 is being used.
  20 //////////////////////////////////////////////////////////////////////////
  21 // The idea is to set up the configuration without including the actual
  22 // headers unless that is unavoidable.
  23 //
  24 // The client code should contain the following to include headers
  25 //
  26 // #ifdef BOOST_PHOENIX_HAS_HASH
  27 // #include BOOST_PHOENIX_HASH_SET_HEADER
  28 // #include BOOST_PHOENIX_HASH_MAP_HEADER
  29 // #endif
  30 //
  31 // #ifdef BOOST_PHOENIX_HAS_UNORDERED_SET_AND_MAP
  32 // #include BOOST_PHOENIX_UNORDERED_SET_HEADER
  33 // #include BOOST_PHOENIX_UNORDERED_MAP_HEADER
  34 // #endif
  35 //
  36 // The client code can then chose the implementation provided.
  37 // See the example in test/stl/querying_find2.cpp
  38
  39 // There is no specific thing in Boost Config for libc++
  40 #ifdef _LIBCPP_VERSION
  41 #define BOOST_PHOENIX_USING_LIBCPP
  42 #endif
  43
  44 // This may not be true for some very old version of libc++
  45 // Current libc++ supports unordered_set and unordered_map without C++11.
  46 #if defined(BOOST_PHOENIX_USING_LIBCPP) \
  47  && !(defined(BOOST_NO_CXX11_HDR_UNORDERED_MAP) || defined(BOOST_NO_CXX11_HDR_UNORDERED_SET))
  48 // This is either libc++ or C++11 or later
  49 #define BOOST_PHOENIX_HAS_UNORDERED_SET_AND_MAP
  50 #define BOOST_PHOENIX_UNORDERED_SET_HEADER <unordered_set>
  51 #define BOOST_PHOENIX_UNORDERED_MAP_HEADER <unordered_map>
  52 #define BOOST_PHOENIX_UNORDERED_NAMESPACE std
  53 #endif
  54
  55 #if defined(BOOST_HAS_HASH)
  56 // This is to sort out case of Clang when using stdlib from gcc
  57 // as Clang thinks it is gcc 4.2.1
  58 // This prevents the failure to include a header with a warning.
  59 #define _GLIBCXX_PERMIT_BACKWARD_HASH
  60 #define BOOST_PHOENIX_HASH_SET_HEADER BOOST_HASH_SET_HEADER
  61 #define BOOST_PHOENIX_HASH_MAP_HEADER BOOST_HASH_MAP_HEADER
  62 #define BOOST_PHOENIX_HAS_HASH
  63 #define BOOST_PHOENIX_HASH_NAMESPACE BOOST_STD_EXTENSION_NAMESPACE
  64 #elif defined(BOOST_DINKUMWARE_STDLIB) && (BOOST_DINKUMWARE_STDLIB < 610)
  65 #define BOOST_PHOENIX_HASH_SET_HEADER <hash_set>
  66 #define BOOST_PHOENIX_HASH_MAP_HEADER <hash_map>
  67 #define BOOST_PHOENIX_HAS_HASH
  68 #define BOOST_PHOENIX_HASH_NAMESPACE stdext
  69 #endif
  70
  71 #if BOOST_WORKAROUND(BOOST_GCC, < 40100)
  72 #define BOOST_PHOENIX_SFINAE_AND_OVERLOADS , void* = 0
  73 #else
  74 #define BOOST_PHOENIX_SFINAE_AND_OVERLOADS
  75 #endif
  76
  77 #endif