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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