78 lines
2.1 KiB
Plaintext
78 lines
2.1 KiB
Plaintext
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// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt).
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//
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// See http://www.boost.org/libs/type_traits for most recent version including documentation.
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#ifndef BOOST_TT_REMOVE_POINTER_HPP_INCLUDED
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#define BOOST_TT_REMOVE_POINTER_HPP_INCLUDED
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#include <boost/config.hpp>
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#if defined(BOOST_MSVC)
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#include <boost/type_traits/remove_cv.hpp>
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#include <boost/type_traits/is_pointer.hpp>
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#endif
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namespace boost {
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#if BOOST_WORKAROUND(BOOST_MSVC, < 1900)
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namespace detail{
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//
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// We need all this crazy indirection because a type such as:
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//
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// T (*const)(U)
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//
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// Does not bind to a <T*> or <T*const> partial specialization with VC10 and earlier
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//
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template <class T>
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struct remove_pointer_imp
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{
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typedef T type;
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};
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template <class T>
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struct remove_pointer_imp<T*>
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{
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typedef T type;
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};
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template <class T, bool b>
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struct remove_pointer_imp3
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{
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typedef typename remove_pointer_imp<typename boost::remove_cv<T>::type>::type type;
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};
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template <class T>
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struct remove_pointer_imp3<T, false>
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{
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typedef T type;
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};
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template <class T>
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struct remove_pointer_imp2
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{
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typedef typename remove_pointer_imp3<T, ::boost::is_pointer<T>::value>::type type;
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};
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}
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template <class T> struct remove_pointer{ typedef typename boost::detail::remove_pointer_imp2<T>::type type; };
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#else
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template <class T> struct remove_pointer{ typedef T type; };
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template <class T> struct remove_pointer<T*>{ typedef T type; };
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template <class T> struct remove_pointer<T*const>{ typedef T type; };
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template <class T> struct remove_pointer<T*volatile>{ typedef T type; };
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template <class T> struct remove_pointer<T*const volatile>{ typedef T type; };
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#endif
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} // namespace boost
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#endif // BOOST_TT_REMOVE_POINTER_HPP_INCLUDED
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