122 lines
4.8 KiB
Plaintext
122 lines
4.8 KiB
Plaintext
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// Copyright (C) 2004 Arkadiy Vertleyb
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_TYPEOF_MODIFIERS_HPP_INCLUDED
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#define BOOST_TYPEOF_MODIFIERS_HPP_INCLUDED
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#include <boost/typeof/encode_decode.hpp>
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#include <boost/preprocessor/facilities/identity.hpp>
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#include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
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// modifiers
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#define BOOST_TYPEOF_modifier_support(ID, Fun)\
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template<class V, class T> struct encode_type_impl<V, Fun(T)>\
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{\
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typedef\
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typename boost::type_of::encode_type<\
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typename boost::type_of::push_back<\
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V\
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, boost::mpl::size_t<ID> >::type\
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, T>::type\
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type;\
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};\
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template<class Iter> struct decode_type_impl<boost::mpl::size_t<ID>, Iter>\
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{\
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typedef boost::type_of::decode_type<Iter> d1;\
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typedef Fun(typename d1::type) type;\
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typedef typename d1::iter iter;\
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}
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#define BOOST_TYPEOF_const_fun(T) const T
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#define BOOST_TYPEOF_volatile_fun(T) volatile T
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#define BOOST_TYPEOF_volatile_const_fun(T) volatile const T
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#define BOOST_TYPEOF_pointer_fun(T) T*
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#define BOOST_TYPEOF_reference_fun(T) T&
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#if defined(__BORLANDC__) && (__BORLANDC__ < 0x600)
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//Borland incorrectly handles T const, T const volatile and T volatile.
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//It drops the decoration no matter what, so we need to try to handle T* const etc. without loosing the top modifier.
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#define BOOST_TYPEOF_const_pointer_fun(T) T const *
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#define BOOST_TYPEOF_const_reference_fun(T) T const &
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#define BOOST_TYPEOF_volatile_pointer_fun(T) T volatile*
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#define BOOST_TYPEOF_volatile_reference_fun(T) T volatile&
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#define BOOST_TYPEOF_volatile_const_pointer_fun(T) T volatile const *
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#define BOOST_TYPEOF_volatile_const_reference_fun(T) T volatile const &
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#endif
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BOOST_TYPEOF_BEGIN_ENCODE_NS
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_const_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_volatile_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_volatile_const_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_pointer_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_reference_fun);
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#if defined(__BORLANDC__) && (__BORLANDC__ < 0x600)
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_const_pointer_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_const_reference_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_volatile_pointer_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_volatile_reference_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_volatile_const_pointer_fun);
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BOOST_TYPEOF_modifier_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_TYPEOF_volatile_const_reference_fun);
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#endif
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BOOST_TYPEOF_END_ENCODE_NS
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#undef BOOST_TYPEOF_modifier_support
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#undef BOOST_TYPEOF_const_fun
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#undef BOOST_TYPEOF_volatile_fun
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#undef BOOST_TYPEOF_volatile_const_fun
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#undef BOOST_TYPEOF_pointer_fun
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#undef BOOST_TYPEOF_reference_fun
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#if defined(__BORLANDC__) && (__BORLANDC__ < 0x600)
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#undef BOOST_TYPEOF_const_pointer_fun
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#undef BOOST_TYPEOF_const_reference_fun
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#undef BOOST_TYPEOF_volatile_pointer_fun
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#undef BOOST_TYPEOF_volatile_reference_fun
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#undef BOOST_TYPEOF_volatile_const_pointer_fun
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#undef BOOST_TYPEOF_volatile_const_reference_fun
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#endif
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// arrays
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#define BOOST_TYPEOF_array_support(ID, Qualifier)\
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template<class V, class T, int N>\
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struct encode_type_impl<V, Qualifier() T[N]>\
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{\
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typedef\
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typename boost::type_of::encode_type<\
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typename boost::type_of::push_back<\
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typename boost::type_of::push_back<\
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V\
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, boost::mpl::size_t<ID> >::type\
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, boost::mpl::size_t<N> >::type\
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, T>::type\
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type;\
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};\
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template<class Iter>\
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struct decode_type_impl<boost::mpl::size_t<ID>, Iter>\
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{\
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enum{n = Iter::type::value};\
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typedef boost::type_of::decode_type<typename Iter::next> d;\
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typedef typename d::type Qualifier() type[n];\
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typedef typename d::iter iter;\
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}
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BOOST_TYPEOF_BEGIN_ENCODE_NS
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BOOST_TYPEOF_array_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_PP_EMPTY);
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BOOST_TYPEOF_array_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_PP_IDENTITY(const));
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BOOST_TYPEOF_array_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_PP_IDENTITY(volatile));
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BOOST_TYPEOF_array_support(BOOST_TYPEOF_UNIQUE_ID(), BOOST_PP_IDENTITY(volatile const));
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BOOST_TYPEOF_END_ENCODE_NS
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#undef BOOST_TYPEOF_array_support
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#endif//BOOST_TYPEOF_MODIFIERS_HPP_INCLUDED
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