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[373] | 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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