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In C++ programming, object slicing occurs when an object of a subclass type is copied to an object of superclass type: the superclass copy will not have any of the member variables or member functions defined in the subclass. These variables and functions have, in effect, been "sliced off".
Program slicing can be used in debugging to locate source of errors more easily. Other applications of slicing include software maintenance, optimization, program analysis, and information flow control. Slicing techniques have been seeing a rapid development since the original definition by Mark Weiser. At first, slicing was only static, i.e ...
Flyweight objects are divided into two components: an invariant component that is shared between all flyweight objects; and a variant, decorated component that may be partially shared or completely unshared. This partitioning of the flyweight object is intended to reduce memory consumption. The decorators are typically cached and reused as well.
Slicing may refer to: Array slicing, an operation on an array in computer science; Chinese salami slicing strategy; Object slicing, an object-oriented programming issue; Program slicing, a set of software engineering methods; Slicing, a mechanical process, see Cutting; Slicing (interface design), image slicing for web design and interface design
C++ objects in general behave like primitive types, so to copy a C++ object one could use the '=' (assignment) operator. There is a default assignment operator provided for all classes, but its effect may be altered through the use of operator overloading. There are dangers when using this technique (see slicing).
Ownership of dynamically allocated objects (memory allocated with new in C++) can also be controlled with RAII, such that the object is released when the RAII (stack-based) object is destroyed. For this purpose, the C++11 standard library defines the smart pointer classes std::unique_ptr for single-owned objects and std::shared_ptr for objects ...
Cilk Plus's array slicing differs from Fortran's in two ways: the second parameter is the length (number of elements in the slice) instead of the upper bound, in order to be consistent with standard C libraries; slicing never produces a temporary, and thus never needs to allocate memory.
Multiple inheritance is a feature of some object-oriented computer programming languages in which an object or class can inherit features from more than one parent object or parent class. It is distinct from single inheritance, where an object or class may only inherit from one particular object or class.