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1 // (C) Copyright John Maddock 2005. |
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2 // Use, modification and distribution are subject to the |
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3 // Boost Software License, Version 1.0. (See accompanying file |
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4 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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5 |
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6 #ifndef BOOST_TR1_MEMORY_HPP_INCLUDED |
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7 # define BOOST_TR1_MEMORY_HPP_INCLUDED |
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8 # include <boost/tr1/detail/config.hpp> |
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9 # include <boost/detail/workaround.hpp> |
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10 # include <memory> |
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11 |
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12 #ifndef BOOST_HAS_TR1_SHARED_PTR |
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13 |
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14 // |
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15 // This header can get included by boost/shared_ptr.hpp which leads |
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16 // to cyclic dependencies, the workaround is to forward declare all |
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17 // the boost components, and then include the actual headers afterwards. |
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18 // This is fragile, but seems to work, and doesn't require modification |
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19 // of boost/shared_ptr.hpp. |
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20 // |
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21 namespace boost{ |
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22 |
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23 class bad_weak_ptr; |
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24 template<class T> class weak_ptr; |
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25 template<class T> class shared_ptr; |
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26 template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b); |
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27 template<class T> void swap(shared_ptr<T> & a, shared_ptr<T> & b); |
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28 template<class T, class U> shared_ptr<T> static_pointer_cast(shared_ptr<U> const & r); |
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29 template<class T, class U> shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const & r); |
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30 template<class T, class U> shared_ptr<T> const_pointer_cast(shared_ptr<U> const & r); |
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31 template<class D, class T> D * get_deleter(shared_ptr<T> const & p); |
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32 template<class T> class enable_shared_from_this; |
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33 |
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34 namespace detail{ |
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35 class shared_count; |
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36 class weak_count; |
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37 } |
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38 |
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39 } |
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40 |
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41 namespace std{ namespace tr1{ |
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42 |
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43 using ::boost::bad_weak_ptr; |
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44 using ::boost::shared_ptr; |
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45 #if !BOOST_WORKAROUND(__BORLANDC__, < 0x0582) |
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46 using ::boost::swap; |
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47 #endif |
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48 using ::boost::static_pointer_cast; |
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49 using ::boost::dynamic_pointer_cast; |
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50 using ::boost::const_pointer_cast; |
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51 using ::boost::get_deleter; |
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52 using ::boost::weak_ptr; |
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53 using ::boost::enable_shared_from_this; |
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54 |
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55 } } |
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56 #include <boost/shared_ptr.hpp> |
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57 #include <boost/weak_ptr.hpp> |
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58 #include <boost/enable_shared_from_this.hpp> |
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59 |
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60 #else |
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61 |
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62 # ifdef BOOST_HAS_INCLUDE_NEXT |
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63 # include_next BOOST_TR1_HEADER(memory) |
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64 # else |
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65 # include <boost/tr1/detail/config_all.hpp> |
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66 # include BOOST_TR1_STD_HEADER(BOOST_TR1_PATH(memory)) |
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67 # endif |
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68 |
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69 #endif |
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70 |
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71 #endif |
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72 |