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c++ Programming Glossary: destructWill an 'empty' destructor do the same thing as the generated destructor? http://stackoverflow.com/questions/1025313/will-an-empty-destructor-do-the-same-thing-as-the-generated-destructor an 'empty' destructor do the same thing as the generated destructor Suppose we.. an 'empty' destructor do the same thing as the generated destructor Suppose we have a toy C class such as the following class.. the following class Foo public Foo private int t Since no destructor is defined a C compiler should create one automatically for..
How C++ destructor works [duplicate] http://stackoverflow.com/questions/11712471/how-c-destructor-works C destructor works duplicate When exactly are objects destroyed in C and.. get read by those who came up with the idea. c exception destructor c faq object lifetime share improve this question In the.. I will distinguish between scoped objects whose time of destruction is statically determined by their enclosing scope functions..
Delete all items from a c++ std::vector http://stackoverflow.com/questions/1525535/delete-all-items-from-a-c-stdvector vector.end but it doesn't work help Update Doesn't clear destruct the elements held by the vector I don't want that as I'm still.. should use std vector clear vec.clear EDIT Doesn't clear destruct the elements held by the vector Yes it does. It calls the destructor.. the elements held by the vector Yes it does. It calls the destructor of every element in the vector before returning the memory...
Is a C++ destructor guaranteed not to be called until the end of the block? http://stackoverflow.com/questions/2087600/is-a-c-destructor-guaranteed-not-to-be-called-until-the-end-of-the-block a C destructor guaranteed not to be called until the end of the block In.. block In the C code below am I guaranteed that the ~obj destructor will be called after the More code executes Or is the compiler.. after the More code executes Or is the compiler allowed to destruct the obj object earlier if it detects that it's not used SomeObject..
Why do un-named C++ objects destruct before the scope block ends? http://stackoverflow.com/questions/2298781/why-do-un-named-c-objects-destruct-before-the-scope-block-ends do un named C objects destruct before the scope block ends The following code prints one two.. foo three Foo one un named object printf two n c scope destructor share improve this question A temporary variable lives..
Destructors for C++ Interface-like classes http://stackoverflow.com/questions/2691611/destructors-for-c-interface-like-classes to use it like an interface base class 'IBatch' has no destructor So the question when you create Interface classes like the.. classes like the above do you always include a virtual destructor Why is it a style or a coding error EDIT Should have said.. said that I do not expect or want the user of IBatch to destruct they are a consumer of a service only through this interface..
std::auto_ptr or boost::shared_ptr for pImpl idiom? http://stackoverflow.com/questions/311166/stdauto-ptr-or-boostshared-ptr-for-pimpl-idiom You shouldn't really use std auto_ptr for this. The destructor won't be visible at the point you declare the std auto_ptr.. by scoped_ptr being noncopyable you only need the pimpl destructor visible at the point you call the scoped_ptr constructor... in MyClass.cpp Here the compiler will generate the destructor of MyClass. Which must call auto_ptr's destructor. At the..
C++ difference between reference, objects and pointers http://stackoverflow.com/questions/3224155/c-difference-between-reference-objects-and-pointers is equivalent to accessing the object itself however when destructing a reference we do not destruct the object itself. A reference.. itself however when destructing a reference we do not destruct the object itself. A reference is an alternative name for the.. goes out of scope then the object it refers to is not destructed so the reference is not the object. share improve this answer..
http://stackoverflow.com/questions/390615/finally-in-c then do the work in the finally block inside the objects destructor. try Some work finally Cleanup code becomes class Cleanup.. clean up for you. In your case it looks like you want to destruct the object in the finally block which means a smart or auto.. No matter which exceptions are thrown the object will be destructed. Getting back to RAII in this case the resource allocation..
What is the difference between exit() and abort()? http://stackoverflow.com/questions/397075/what-is-the-difference-between-exit-and-abort registered using atexit first and without calling objects' destructors first. exit does both before exiting your program. It does.. does both before exiting your program. It does not call destructors for automatic objects though. So A a void test static A b.. though. So A a void test static A b A c exit 0 Will destruct a and b properly but will not call destructors of c . abort..
Pointers, smart pointers or shared pointers? http://stackoverflow.com/questions/417481/pointers-smart-pointers-or-shared-pointers When the last shared pointer for an object in memory is destructed the wrapped pointer will also be deleted. How about when you.. if used everywhere. The reason being that creating copying destructing a shared pointer needs to be an atomic operation and this.. that pointer after the data structure that owns it is destructed and it is an error to delete it. Under a shared pointer the..
Is it valid to directly call a (virtual) destructor? http://stackoverflow.com/questions/6036086/is-it-valid-to-directly-call-a-virtual-destructor it valid to directly call a virtual destructor In this answer Ryan directly calls the virtual destructor... destructor In this answer Ryan directly calls the virtual destructor. I've tested the code in VS2010 and it correctly calls all.. I've tested the code in VS2010 and it correctly calls all destructors tested with logging statements . Is it actually valid to..
http://stackoverflow.com/questions/6403055/object-destruction-in-c destruction in C When exactly are objects destroyed in C and what does.. get read by those who came up with the idea. c exception destructor c faq object lifetime share improve this question In the.. I will distinguish between scoped objects whose time of destruction is statically determined by their enclosing scope functions..
How is dynamic memory managed in std::vector? http://stackoverflow.com/questions/672352/how-is-dynamic-memory-managed-in-stdvector _begin1 i _begin i alloc.construct _begin1 _size t destruct old ones. dtors are not allowed to throw here. if they do behavior.. just get memory from operator new . destroy would call the destructor _start n ~T All that is abstracted behind the allocator and..
How to make template function friend of template class http://stackoverflow.com/questions/6819075/how-to-make-template-function-friend-of-template-class I have a template class with private constructor and destructor template typename T class Client private Client ... ~Client.. Client Note private constructor public ~Client Note public destructor Note friend template function syntax template typename U friend.. friend keyword prefixed before the return type. Also the destructor is public so that users of initialize will be able to destruct..
What can I do with a moved-from object? http://stackoverflow.com/questions/7027523/what-can-i-do-with-a-moved-from-object think that all you can do with a moved from object is do destruct it but that would not be sufficient. For example take the function.. all it's members in a defined state and it still requires destruction. The Standard gives no specific definitions because it would..
How can boost::serialization be used with std::shared_ptr from C++11? http://stackoverflow.com/questions/8115220/how-can-boostserialization-be-used-with-stdshared-ptr-from-c11 shared_ptr objects pointing to it and therefore would destruct it more than one time. Any ideas on that Some technical details..
http://stackoverflow.com/questions/2674736/loading-a-dll-from-a-dll return code ret DllMain hinstDLL fdwReason lpvReserved Destruct global objects and static fields destruct_globals Destruct.. global objects and static fields destruct_globals Destruct the global CRT structures cleanup_CRT break case DLL_THREAD_ATTACH.. return code ret DllMain hinstDLL fdwReason lpvReserved Destruct thread local objects and static fields destruct_TLS_globals..
What is the order in which the destructors and the constructors are called in C++ http://stackoverflow.com/questions/654428/what-is-the-order-in-which-the-destructors-and-the-constructors-are-called-in-c class B public B cout Construct B endl virtual ~B cout Destruct B endl class D public B public D cout Construct D endl virtual.. D public B public D cout Construct D endl virtual ~D cout Destruct D endl int main int argc char argv B b return 0 Output of example.. B b return 0 Output of example Construct B Construct D Destruct D Destruct B Multiple levels of inheritance works like a stack..
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