dangling pointer

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oost::shared_arrayIn C/C++, there are two versions of new/delete: one for objects, one for arrays.The pointers returned by ordinary new and array new have the same type.Therefore, there is a separate version of boost::shared_ptr for arraynew/delete.boost::shared_array is boost::shared_ptr for array new/delete.boost::shared_array should be used very rarely, because:C-style array should be used very rarely! Use std::vector instead. In rarecases, you may want to use a boost::shared_ptr to an std::vector.
oost::scoped_ptr{boost::scoped_ptr scp(new X);// Use scp. You cannot make copies of scp, nor can you// pass the ownership of the X object to any other smart// pointer.}// When scp goes out of scope, the destructor calls// delete on the raw pointer.boost::shared_ptr is very simple. Pretty much the only non-trivial thing in itsinterface is the reset method.
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 18 and 19: Leaking Memory with Smart PointersT
Page 20 and 21: struct B;struct A {boost::shared_pt
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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