Search results
Results From The WOW.Com Content Network
The Java package java.lang.ref supports soft, weak and phantom references, resulting in the additional object reachability states softly reachable and phantom reachable. Unreachable memory (in languages, like C, that do not reclaim) is often associated with software aging .
In computer programming, a weak reference is a reference that does not protect the referenced object from collection by a garbage collector, unlike a strong reference.An object referenced only by weak references – meaning "every chain of references that reaches the object includes at least one weak reference as a link" – is considered weakly reachable, and can be treated as unreachable and ...
Unreachable code that a programmer decided not to delete because it is mingled with reachable code; Potentially reachable code that current use cases never need; Dormant code that is kept intentionally in case it is needed later; Code used only for debugging. Legacy code is that which was once useful but is no longer used or required.
An object is strongly reachable if it is reachable either directly by a strong reference or indirectly by a chain of strong references. (A strong reference is a reference that, unlike a weak reference , prevents an object from being garbage collected.)
The state of a deterministic finite automaton = (,,,,) is unreachable if no string in exists for which = (,).In this definition, is the set of states, is the set of input symbols, is the transition function (mapping a state and an input symbol to a set of states), is its extension to strings (also known as extended transition function), is the initial state, and is the set of accepting (also ...
A resurrected object may be treated the same as other objects, or may be treated specially. In many languages, notably C#, Java, and Python (from Python 3.4), objects are only finalized once, to avoid the possibility of an object being repeatedly resurrected or even being indestructible; in C# objects with finalizers by default are only finalized once, but can be re-registered for finalization.
URL scheme in the GNOME desktop environment to access file(s) with administrative permissions with GUI applications in a safer way, instead of sudo, gksu & gksudo, which may be considered insecure GNOME Virtual file system
PURLs allow third party control over both URL resolution and resource metadata provision. A URL is simply an address of a resource on the World Wide Web. A Persistent URL is an address on the World Wide Web that causes a redirection to another Web resource. If a Web resource changes location (and hence URL), a PURL pointing to it can be updated.