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c++ Programming Glossary: derivedIs there a difference in C++ between copy initialization and direct initialization? http://stackoverflow.com/questions/1051379/is-there-a-difference-in-c-between-copy-initialization-and-direct-initializati construct a conversion sequence when a has not type B or derived from it which is clearly the case here . So it will look for..
Start thread with member function http://stackoverflow.com/questions/10673585/start-thread-with-member-function an object of type T or a reference to an object of a type derived from T t1 . f t2 ... tN when f is a pointer to a member function.. an object of type T or a reference to an object of a type derived from T t1 . f when N 1 and f is a pointer to member data of..
C++ Virtual/Pure Virtual Explained http://stackoverflow.com/questions/1306778/c-virtual-pure-virtual-explained a virtual function that is required to be implemented by a derived class that is not abstract Wikipedia So the virtual function..
Why does an overridden function in the derived class hide other overloads of the base class? http://stackoverflow.com/questions/1628768/why-does-an-overridden-function-in-the-derived-class-hide-other-overloads-of-the does an overridden function in the derived class hide other overloads of the base class Consider the code..
How to pass objects to functions in C++? http://stackoverflow.com/questions/2139224/how-to-pass-objects-to-functions-in-c by a non const lvalue reference unless you pass objects of derived classes as base classes in which case you need to pass by reference..
When does invoking a member function on a null instance result in undefined behavior? http://stackoverflow.com/questions/2474018/when-does-invoking-a-member-function-on-a-null-instance-result-in-undefined-beha is not an object of type T and is not an object of a type derived from T or if the object is uninitialized a program that necessitates.. is called for an object that is not of type X or of a type derived from X the behavior is undefined. With static functions the..
What is the slicing problem in C++? http://stackoverflow.com/questions/274626/what-is-the-slicing-problem-in-c this question Slicing is where you assign an object of a derived class to an instance of a base class thereby losing part of..
How do you declare an interface in C++? http://stackoverflow.com/questions/318064/how-do-you-declare-an-interface-in-c ownership to another party without exposing the concrete derived class. The destructor doesn't have to do anything because the..
How can I add reflection to a C++ application? http://stackoverflow.com/questions/41453/how-can-i-add-reflection-to-a-c-application type class struct union has a method or nested type is derived from another particular type. This kind of thing is possible..
When to use virtual destructors? http://stackoverflow.com/questions/461203/when-to-use-virtual-destructors are useful when you can delete an instance of a derived class through a pointer to base class class Base some virtual.. of the base class will be called but not the one of the derived class resulting in resources leak. To sum up always make base..
What are access specifiers? Should I inherit with private, protected or public? http://stackoverflow.com/questions/5447498/what-are-access-specifiers-should-i-inherit-with-private-protected-or-public are accessible from outside the class BUT only in a class derived from it. Private These members are only accessible from within.. members of the Base Class become Public Members of the derived class All Protected members of the Base Class become Protected.. members of the Base Class become Protected Members of the derived class All Protected members of the Base Class become Protected..
What are the differences between struct and class in C++ http://stackoverflow.com/questions/92859/what-are-the-differences-between-struct-and-class-in-c specifier for a base class public is assumed when the derived class is declared struct and private is assumed when the class..
Regular cast vs. static_cast vs. dynamic_cast http://stackoverflow.com/questions/28002/regular-cast-vs-static-cast-vs-dynamic-cast doesn't contain a virtual function struct Base struct Derived Base int main Derived d Base b d dynamic_cast Derived b invalid.. virtual function struct Base struct Derived Base int main Derived d Base b d dynamic_cast Derived b invalid An up cast is always.. Derived Base int main Derived d Base b d dynamic_cast Derived b invalid An up cast is always valid with both static_cast and..
When to use virtual destructors? http://stackoverflow.com/questions/461203/when-to-use-virtual-destructors to base class class Base some virtual methods class Derived public Base ~Derived Do some important cleanup Here you'll.. class Base some virtual methods class Derived public Base ~Derived Do some important cleanup Here you'll notice that I didn't.. Now let's have a look at the following snippet Base b new Derived use b delete b Here's the problem Since Base's destructor is..
What are access specifiers? Should I inherit with private, protected or public? http://stackoverflow.com/questions/5447498/what-are-access-specifiers-should-i-inherit-with-private-protected-or-public members of the Base Class become Protected Members of the Derived Class. i.e. No change in the Access of the members. The access.. Base public int a protected int b private int c class Derived public Base void doSomething a 10 Allowed b 20 Allowed c 30.. b 20 Allowed c 30 Not Allowed Compiler Error int main Derived obj obj.a 10 Allowed obj.b 20 Not Allowed Compiler Error obj.c..
C++ unique static id and class name with base class http://stackoverflow.com/questions/7691697/c-unique-static-id-and-class-name-with-base-class TaskBase for this class My try was template typename DERIVED class TaskBase public static const int id static const int.. int id static const int id reinterpret_cast int typeid DERIVED .name return id static const string name static string n if.. n.size int status char realname abi __cxa_demangle typeid DERIVED .name 0 0 status n realname free realname return n I already..
Store two classes with the same base class in a std::vector http://stackoverflow.com/questions/8777724/store-two-classes-with-the-same-base-class-in-a-stdvector Derived public Base public virtual void identify cout DERIVED endl int main Derived derived vector Base vect vect.push_back.. derived vect 0 .identify return 0 I expected it to print DERIVED because the identify method is virtual. Instead 'vect 0 ' seems..
Unique class type Id that is safe and holds across library boundaries http://stackoverflow.com/questions/922442/unique-class-type-id-that-is-safe-and-holds-across-library-boundaries to do it from a static method though ie. template class DERIVED class Foo public static int s_id return id unique for DERIVED.. class Foo public static int s_id return id unique for DERIVED ... Thank you c class templates unique share improve this.. public Person ... Employee members ... template typename DERIVED class Test public static int s_id return id unique for DERIVED..
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