 Related Questions Structure: Initially (in C) a structure was used to bundle different type of data types together to perform a particular functionality. But C++ extended the structure to contain functions also. Latest Answer : In case of class by default members and methods are in private section and In case of structure they are in public section. ... A virtual function allows derived classes to replace the implementation provided by the base class. The compiler makes sure the replacement is always called whenever the object in question is actually Latest Answer : It is a functions whose behaviour can be overriden with an inherited class by a function of same signature. It is an important part of OOPS and Polymorphism. ... Classes and objects are separate but related concepts. Every object belongs to a class and every class contains one or more related objects. Ø A Class Latest Answer : Class is a combination of data member & member function where object is used for calling function In class we declare In object we call ... The free subroutine frees a block of memory previously allocated by the malloc subroutine. Undefined results occur if the Pointer parameter is not a valid pointer. If the Pointer parameter is a null value, Latest Answer : free() - releases the memory of the pointer passed as parameter, to the OS/application consumption. Using the pointer after free() will result in undefinded resultsrealloc() - used to resize the memory held by the pointer to the number of bytes specificed. ... Function overloading: C++ enables several functions of the same name to be defined, as long as these functions have different sets of parameters (at least as far as their types are concerned). This Latest Answer : Here are some examples1) Function overloadingclass FuncOver {public: // Constructors can also be overloaded. FuncOver(); // Overloaded constructor. ... Templates allow to create generic functions that admit any data type as parameters and return value without having to overload the function with all the possible data types. Until certain point they fulfill Latest Answer : A template parameter is a special kind of parameter that can be used to pass a type as argument: just like regular function parameters can be used to pass values to a function, template parameters allow to pass also types to a function. These function ... Virtual destructors: If an object (with a non-virtual destructor) is destroyed explicitly by applying the delete operator to a base-class pointer to the object, the base-class destructor function (matching Latest Answer : Virtual constructor is not build-in C++ feature but it doesn't mean its not used by devs in code and in conversations. There are many other things that doesn't exist in particular language yet, people find ways around to solve it (SingleTon, Virtual Constructor, ... There is only one difference ,in classes the members are private by default whereas it is not so in structures. Latest Answer : There are a lot of differences between Structure & Class in C.But in C++ the only difference is the members structure are by default public where as class members are by default private.Using C++ structure we can do the OOPS concepts like inheritance ... Latest Answer : Operator new works like malloc. Example:int *n; n = (int*) operator new(sizeof(int)); New Operator does the following:1) Calculate the memory 2) Allocate memory using operator new 3) Call the Constructor ... Read Answers (6) | Asked by : suman Latest Answer : No concept of encapsulation, code is different than the data in case of C structure. This is possible in C++ structure. ...
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