mirror of
https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2976 91177308-0d34-0410-b5e6-96231b3b80d8
200 lines
5.0 KiB
C++
200 lines
5.0 KiB
C++
// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
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// Permission to copy, use, modify, sell and
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// distribute this software is granted provided this copyright notice appears
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// in all copies. This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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// See http://www.boost.org for most recent version including documentation.
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//
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// defines traits classes for transforming one type to another:
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// remove_reference, add_reference, remove_bounds, remove_pointer.
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//
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// Revision History:
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// 21st March 2001
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// Added void specialisations to add_reference.
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#ifndef BOOST_TRANSFORM_TRAITS_HPP
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#define BOOST_TRANSFORM_TRAITS_HPP
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#ifndef BOOST_ICE_TYPE_TRAITS_HPP
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#include <boost/type_traits/ice.hpp>
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#endif
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#ifndef BOOST_FWD_TYPE_TRAITS_HPP
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#include <boost/type_traits/fwd.hpp>
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#endif
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#if !defined(BOOST_COMPOSITE_TYPE_TRAITS_HPP) && defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
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#include <boost/type_traits/composite_traits.hpp>
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#endif
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namespace boost{
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/**********************************************
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*
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* remove_reference
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*
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**********************************************/
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template <typename T>
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struct remove_reference
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{ typedef T type; };
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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template <typename T>
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struct remove_reference<T&>
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{ typedef T type; };
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#endif
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#if defined(__BORLANDC__) && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
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// these are illegal specialisations; cv-qualifies applied to
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// references have no effect according to [8.3.2p1],
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// C++ Builder requires them though as it treats cv-qualified
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// references as distinct types...
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template <typename T>
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struct remove_reference<T&const>
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{ typedef T type; };
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template <typename T>
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struct remove_reference<T&volatile>
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{ typedef T type; };
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template <typename T>
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struct remove_reference<T&const volatile>
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{ typedef T type; };
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#endif
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/**********************************************
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*
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* add_reference
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*
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**********************************************/
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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template <typename T>
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struct add_reference
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{ typedef T& type; };
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template <typename T>
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struct add_reference<T&>
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{ typedef T& type; };
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#elif defined(BOOST_MSVC6_MEMBER_TEMPLATES)
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namespace detail{
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template <bool x>
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struct reference_adder
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{
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template <class T>
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struct rebind
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{
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typedef T& type;
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};
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};
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template <>
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struct reference_adder<true>
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{
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template <class T>
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struct rebind
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{
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typedef T type;
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};
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};
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} // namespace detail
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template <typename T>
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struct add_reference
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{
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private:
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typedef typename detail::reference_adder< ::boost::is_reference<T>::value>::template rebind<T> binder;
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public:
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typedef typename binder::type type;
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};
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#else
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template <typename T>
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struct add_reference
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{ typedef T& type; };
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#endif
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//
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// these full specialisations are always required:
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template <> struct add_reference<void>{ typedef void type; };
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#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
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template <> struct add_reference<const volatile void>{ typedef const volatile void type; };
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template <> struct add_reference<const void>{ typedef const void type; };
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template <> struct add_reference<volatile void>{ typedef volatile void type; };
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#endif
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/**********************************************
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*
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* remove_bounds
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*
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**********************************************/
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template <typename T>
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struct remove_bounds
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{ typedef T type; };
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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template <typename T, std::size_t N>
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struct remove_bounds<T[N]>
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{ typedef T type; };
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template <typename T, std::size_t N>
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struct remove_bounds<const T[N]>
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{ typedef const T type; };
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template <typename T, std::size_t N>
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struct remove_bounds<volatile T[N]>
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{ typedef volatile T type; };
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template <typename T, std::size_t N>
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struct remove_bounds<const volatile T[N]>
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{ typedef const volatile T type; };
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#endif
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/**********************************************
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*
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* remove_pointer
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*
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**********************************************/
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template <typename T>
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struct remove_pointer
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{ typedef T type; };
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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template <typename T>
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struct remove_pointer<T*>
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{ typedef T type; };
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template <typename T>
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struct remove_pointer<T*const>
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{ typedef T type; };
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template <typename T>
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struct remove_pointer<T*volatile>
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{ typedef T type; };
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template <typename T>
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struct remove_pointer<T*const volatile>
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{ typedef T type; };
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#endif
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/**********************************************
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*
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* add_pointer
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*
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**********************************************/
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template <typename T>
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struct add_pointer
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{
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private:
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typedef typename remove_reference<T>::type no_ref_type;
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public:
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typedef no_ref_type* type;
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};
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} // namespace boost
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#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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//
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// if there is no partial specialisation support
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// include a bunch of full specialisations as a workaround:
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//
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#include <boost/type_traits/transform_traits_spec.hpp>
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#else
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#define BOOST_BROKEN_COMPILER_TYPE_TRAITS_SPECIALIZATION(x)
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#endif
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#endif // BOOST_TRANSFORM_TRAITS_HPP
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