[857] | 1 | // Copyright (C) 2002 Brad King (brad.king@kitware.com)
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| 2 | // Douglas Gregor (gregod@cs.rpi.edu)
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| 3 | // Peter Dimov
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| 4 | //
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| 5 | // Distributed under the Boost Software License, Version 1.0. (See
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| 6 | // accompanying file LICENSE_1_0.txt or copy at
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| 7 | // http://www.boost.org/LICENSE_1_0.txt)
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| 8 |
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| 9 | // For more information, see http://www.boost.org
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| 10 |
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| 11 | #ifndef BOOST_UTILITY_ADDRESSOF_HPP
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| 12 | # define BOOST_UTILITY_ADDRESSOF_HPP
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| 13 |
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| 14 | # include <boost/config.hpp>
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| 15 | # include <boost/detail/workaround.hpp>
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| 16 |
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| 17 | namespace boost {
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| 18 |
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| 19 | // Do not make addressof() inline. Breaks MSVC 7. (Peter Dimov)
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| 20 |
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| 21 | // VC7 strips const from nested classes unless we add indirection here
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| 22 | # if BOOST_WORKAROUND(BOOST_MSVC, == 1300)
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| 23 |
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| 24 | template<class T> struct _addp
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| 25 | {
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| 26 | typedef T * type;
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| 27 | };
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| 28 |
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| 29 | template <typename T> typename _addp<T>::type
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| 30 |
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| 31 | # else
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| 32 | template <typename T> T*
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| 33 | # endif
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| 34 | addressof(T& v)
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| 35 | {
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| 36 | return reinterpret_cast<T*>(
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| 37 | &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
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| 38 | }
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| 39 |
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| 40 | // Borland doesn't like casting an array reference to a char reference
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| 41 | // but these overloads work around the problem.
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| 42 | # if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
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| 43 | template<typename T,std::size_t N>
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| 44 | T (*addressof(T (&t)[N]))[N]
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| 45 | {
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| 46 | return reinterpret_cast<T(*)[N]>(&t);
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| 47 | }
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| 48 |
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| 49 | template<typename T,std::size_t N>
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| 50 | const T (*addressof(const T (&t)[N]))[N]
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| 51 | {
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| 52 | return reinterpret_cast<const T(*)[N]>(&t);
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| 53 | }
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| 54 | # endif
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| 55 |
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| 56 | }
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| 57 |
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| 58 | #endif // BOOST_UTILITY_ADDRESSOF_HPP
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