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1 | |
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2 | #include <iostream> |
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3 | #include "boost/shared_ptr.hpp" |
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4 | #include "boost/weak_ptr.hpp" |
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5 | |
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6 | class A; |
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7 | class B; |
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8 | |
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9 | typedef boost::shared_ptr<A> AStrongPtr; |
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10 | //typedef boost::weak_ptr<A> AWeakPtr; |
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11 | typedef boost::shared_ptr<B> BStrongPtr; |
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12 | //typedef boost::weak_ptr<B> BWeakPtr; |
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13 | |
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14 | class ABlink; |
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15 | typedef boost::shared_ptr<ABlink> ABlinkStrongPtr; |
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16 | typedef boost::weak_ptr<ABlink> ABlinkWeakPtr; |
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17 | |
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18 | |
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19 | class A { |
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20 | public: |
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21 | A() { std::cout << "Ctor A<"<<this<<">" << std::endl;} |
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22 | virtual ~A() { std::cout << "Dtor A<"<<this<<">" << std::endl;} |
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23 | }; |
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24 | |
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25 | class B { |
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26 | public: |
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27 | B() { std::cout << "Ctor B<"<<this<<">" << std::endl;} |
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28 | virtual ~B() { std::cout << "Dtor B<"<<this<<">" << std::endl;} |
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29 | }; |
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30 | |
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31 | class ABlink { |
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32 | public: |
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33 | |
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34 | void setB(const BStrongPtr& aB) {a = aB;} |
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35 | BStrongPtr& getB() { |
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36 | std::cout << "Use non-const getB" << std::endl; |
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37 | return a; |
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38 | } |
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39 | const BStrongPtr& getB() const { |
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40 | std::cout << "Use const getB" << std::endl; |
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41 | return b; |
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42 | } |
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43 | |
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44 | void setA(const AStrongPtr& aA) {a = aA;} |
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45 | AStrongPtr& getA() { |
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46 | std::cout << "Use non-const getA" << std::endl; |
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47 | return a; |
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48 | } |
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49 | const AStrongPtr& getA() const { |
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50 | std::cout << "Use const getA" << std::endl; |
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51 | return a; |
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52 | } |
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53 | |
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54 | private: |
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55 | AStrongPtr a; |
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56 | BStrongPtr b; |
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57 | }; |
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58 | |
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59 | |
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60 | |
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61 | int main() { |
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62 | |
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63 | std::cout << "Create A & B" << std::endl; |
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64 | AStrongPtr aA(new A); |
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65 | BStrongPtr aB(new B); |
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66 | |
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67 | std::cout << "Make the association A <-> B" << std::endl; |
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68 | ABlinkStrongPtr abLink(new ABlink); |
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69 | abLink->setA(aA); |
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70 | abLink->setB(aB); |
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71 | |
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72 | std::cout << "return" << std::endl; |
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73 | |
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74 | return 0; |
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75 | |
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76 | } |
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