dangling pointer

More documents

Recommendations

Info

Pragmatism FirstThere are two member functions in boost:shared_ptr that are somewhatcontroversial: pragmatists like them, purists don’t.boost::shared_ptr sp(new X);// use sp, pass it around to other parts of the program// How many copies are out there?long num_copies = sp.use_count();// Am I the only one?if(sp.unique()){// …}Use boost::shared_ptr::use_count() only for debugging purposes.Understand that boost::shared_ptr::use_count() gets tricky to use in thepresence of concurrency.
Pragmatism First (cont.)boost::shared_ptr sp(new X);// Get the raw pointerX* p = sp.get();Use boost::shared_ptr::get() only to pass the raw pointer tolibrary/system functions that expect a pointer and do not take ownership of thepointer.
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: Reassigning a shared_ptrboost::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 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

dangling pointer

Create successful ePaper yourself

Delete template?

Save as template?