dangling pointer

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Leaking Memory with Smart PointersTrue or false: If every occurrence of new in my program is in the constructor of aboost:shared_ptr, as inBoost::shared_ptr sp(new X);then my program cannot leak memory.There are two ways for memory leaks to occur.Big fat false
Non-Exception-Safe Function Callsvoid f(boost::shared_ptr, int);int g();// Good codeboost::shared_ptr sp(new X);f(sp, g());// Bad code//// Problem if new X is evaluated first, then g(), and g()// throws.f(boost::shared_ptr(new X), g());Moral: avoid using unnamed temporaries of type boost::shared_ptr.
Page 1 and 2: The Boost Smart PointerLibraryThoma
Page 3 and 4: Contents of the Boost Smart Pointer
Page 5 and 6: The ProblemTraditional “managemen
Page 7 and 8: Null PointersC/C++ raw pointers hav
Page 9 and 10: Reassigning a shared_ptrboost::shar
Page 11 and 12: Pragmatism First (cont.)boost::shar
Page 13: Handling HandlesCustom deleters can
Page 20 and 21: struct B;struct A {boost::shared_pt
Page 22 and 23: oost::shared_arrayIn C/C++, there a
Page 25 and 26: oost::scoped_arrayboost::scoped_arr
Page 27: Cyclic References and SymmetryIn pr
Page 30 and 31: oost::weak_ptr Creation and Resetti
Page 32 and 33: oost::weak_ptr Object Access (cont.
Page 34 and 35: Weak Pointers Relations Can Be Tric
Page 36 and 37: oost::intrusive_ptrboost::intrusive
Page 38 and 39: std::auto_ptr (cont.)Use std::auto_
Page 40 and 41: std::auto_ptr and Generic Codetempl
Page 42 and 43: Setting up Weak Pointer Relationscl
Page 44 and 45: How to enable shared from thisIf we

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