c++ Programming Glossary: instance
C++ Singleton design pattern http://stackoverflow.com/questions/1008019/c-singleton-design-pattern getInstance ~Singleton private Singleton static Singleton instance From this declaration I can deduce that the instance field is.. instance From this declaration I can deduce that the instance field is initiated on the heap. That means there is a memory.. singleton. class S public static S getInstance static S instance Guaranteed to be destroyed. Instantiated on first use. return..
What is an undefined reference/unresolved external symbol error and how do I fix it? http://stackoverflow.com/questions/12573816/what-is-an-undefined-reference-unresolved-external-symbol-error-and-how-do-i-fix for end of line indicators if necessary. SNIP Each instance of a backslash character immediately followed by a new line..
Default constructor with empty brackets http://stackoverflow.com/questions/180172/default-constructor-with-empty-brackets declaration even if resulting AST doesn't compile. Another instance of the same problem std ifstream ifs file.txt std vector T v..
Is there a performance difference between i++ and ++i in C++? http://stackoverflow.com/questions/24901/is-there-a-performance-difference-between-i-and-i-in-c is a bit more complicated. If i is a simple type not an instance of a C class then the answer given for C holds since the compiler.. the compiler is generating the code. However if i is an instance of a C class then i and i are making calls to one of the operator..
What is the slicing problem in C++? http://stackoverflow.com/questions/274626/what-is-the-slicing-problem-in-c is where you assign an object of a derived class to an instance of a base class thereby losing part of the information some..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom of move construction to take the resources from another instance of the class leaving it in a state guaranteed to be assignable.. feature then swap with other we know a default constructed instance of our class can safely be assigned and destructed so we know..
When should static_cast, dynamic_cast and reinterpret_cast be used? http://stackoverflow.com/questions/332030/when-should-static-cast-dynamic-cast-and-reinterpret-cast-be-used when overloading member functions based on const for instance. It can also be used to add const to an object such as to call.. therefore be used as a replacement for other casts in some instances but can be extremely dangerous because of the ability to devolve..
C++ Functors - and their uses http://stackoverflow.com/questions/356950/c-functors-and-their-uses x Now you can use it like this add_x add42 42 create an instance of the functor class int i add42 8 and call it assert i 50 and.. as a constructor argument when we created our functor instance. I could create another adder which added 27 just by calling..
What are all the common undefined behaviour that a C++ programmer should know about? [closed] http://stackoverflow.com/questions/367633/what-are-all-the-common-undefined-behaviour-that-a-c-programmer-should-know-ab Using pointers to objects whose lifetime has ended for instance stack allocated objects or deleted objects Dereferencing a pointer..
What are the barriers to understanding pointers and what can be done to overcome them? http://stackoverflow.com/questions/5727/what-are-the-barriers-to-understanding-pointers-and-what-can-be-done-to-overcome you stored that really should not be randomly changed. For instance it might not be a problem that parts of the name of the h1 house..
Where and why do I have to put the “template” and “typename” keywords? http://stackoverflow.com/questions/610245/where-and-why-do-i-have-to-put-the-template-and-typename-keywords to determine if a type U is one of the types T1..Tn . For instance I've got a member template typename U union_cast U that should..
C++ Constructor/Destructor inheritance http://stackoverflow.com/questions/14184341/c-constructor-destructor-inheritance mind #include cstdio Base class struct A A printf tInstance counter d ctor n instance_counter ~A printf tInstance counter.. tInstance counter d ctor n instance_counter ~A printf tInstance counter d dtor n instance_counter static int instance_counter.. c.~C and here is the output compiled with g 4.4.3 Create A Instance counter 1 ctor Delete A Instance counter 0 dtor Create B Instance..
Virtual Webcam Driver http://stackoverflow.com/questions/1627448/virtual-webcam-driver _FriendlyName.c_str 0 CLSID_VideoInputDeviceCategory _InstanceID.c_str rf2 if FAILED hr return false std wstring inputCat.. std wstring regPath L CLSID inputCat L Instance win32_utils CRegKey hKeyInstancesDir LONG rval openKey HKEY_CLASSES_ROOT.. L CLSID inputCat L Instance win32_utils CRegKey hKeyInstancesDir LONG rval openKey HKEY_CLASSES_ROOT regPath KEY_WRITE hKeyInstancesDir..
Singleton pattern in C++ http://stackoverflow.com/questions/2496918/singleton-pattern-in-c like this class CMySingleton public static CMySingleton Instance static CMySingleton singleton return singleton Other non static.. actually control things.... 2. Local static struct A A B Instance C Instance .call struct B ~B C Instance .call static B Instance.. control things.... 2. Local static struct A A B Instance C Instance .call struct B ~B C Instance .call static B Instance static..
C++ Instance Initialization Syntax http://stackoverflow.com/questions/372665/c-instance-initialization-syntax Instance Initialization Syntax Given a class like this class Foo public..
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