Computer Language for AeronauticS and Programming
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class hierarchy » classic
1. <programming> The prototype for an object in an object-oriented
language; analogous to a derived type in a procedural language. A class may also
be considered to be a set of objects which share a common structure and
behaviour. The structure of a class is determined by the class variables which
represent the state of an object of that class and the behaviour is given by a
set of methods associated with the class.
Classes are related in a class hierarchy. One class may be a specialisation (a
"subclass") of another (one of its "superclasses") or it may be composed of
other classes or it may use other classes in a client-server relationship. A
class may be an abstract class or a concrete class.
See also signature.
2. <programming> See type class.
3. <networking> One of three types of Internet addresses distinguished by
their most significant bits.
3. <language> A language developed by the Andrew Project. It was one of
the first attempts to add object-oriented features to C.
Clarion « Claris « CLASP « class » class
hierarchy » classic » Classic-Ada
<programming> A set of classes and their interrelationships.
One class may be a specialisation (a "subclass" or "derived class") of another
which is one of its "superclasses" or "base classes".
When a method is invoked on an object it is first looked for in the object's
class, then the superclass of that class, and so on up the hierarchy until it is
found. Thus a class need only define those methods which are specific to it, and
inherits methods from all its superclasses.
See also: multiple inheritance.
Claris « CLASP « class « class hierarchy »
classic » Classic-Ada » classical logic
<jargon> An adjective used before or after a noun to describe the
original version of something, especially if the original is considered to be
Examples include "Star Trek Classic" - the original TV series as opposed to the
films, ST The Next Generation or any of the other spin-offs and follow-ups; or
"PC Classic" - IBM's ISA-bus computers as opposed to the PS/2 series.
CLASP « class « class hierarchy « classic »
Classic-Ada » classical logic » Classic C
<language> An object-oriented extension to Ada, said to be like
Smalltalk. It is implemented as an Ada preprocessor.
class « class hierarchy « classic « Classic-Ada
» classical logic » Classic C » Classless
<logic> Non-intuitionistic logic.
class hierarchy « classic « Classic-Ada «
» Classic C » Classless Inter-Domain Routing » class
classic « Classic-Ada « classical logic « Classic
C » Classless Inter-Domain Routing » class
library » class method
Classless Inter-Domain Routing
<networking> (CIDR) /sid*r/ A technique that summarises a block of
Internet addresses in a routing table as an address in dotted decimal notation
followed by a forward slash and a two-digit decimal number giving the number of
leading one bits in the subnet mask. For example, 188.8.131.52/24 specifies a
subnet mask of 11111111.11111111.11111111.00000000 (binary), implying the block
of addresses 184.108.40.206 through 220.127.116.11.
CIDR is "classless" because it is not limited to the subnet masks specified by
Internet address classes A, B and C.
According to RFC 1519, CIDR was implemented to distribute Internet address space
more efficiently and to provide a mechanism for IP route aggregation. This in
turn reduces the number of entries in IP routing tables, enabling faster, more
efficient routing, e.g. using routing protocols such as OSPF. CIDR is supported
See also RFC 1467, RFC 1518, RFC 1520.
Classic-Ada « classical logic « Classic C «
Classless Inter-Domain Routing » class library »
class method » Class Oriented Ring Associated
<programming> A library of reusable classes for use with an
object-oriented programming system.
classical logic « Classic C « Classless Inter-Domain
Routing « class library » class method »
Class Oriented Ring Associated Language »
<programming> A kind of method, available in some object-oriented
programming languages, that operates on the class as a whole, as opposed to an
object method that operates on an object that is an instance of the class.
A typical example of a class method would be one that keeps a count of the
number of objects of that class that have been created.
Classic C « Classless Inter-Domain Routing « class
class method » Class Oriented Ring Associated
Language » Class-Relation Method » Clausal Language
Class Oriented Ring Associated Language
<language> (CORAL) A language developed by L.G. Roberts at MIT in 1964
for graphical display and systems programming on the TX-2. It used "rings"
(circular lists) from Sketchpad.
["Graphical Communication and Control Languages", L.B. Roberts, Information
System Sciences: Proc Second Congress, 1965].
[Sammet 1969, p.462].
Classless Inter-Domain Routing « class library «
class method « Class Oriented Ring Associated
Language » Class-Relation Method » Clausal
Language » clause
<programming> A design technique based on the concepts of object-oriented
programming and the Entity-Relationship model from the French company Softeam.
class library « class method « Class Oriented Ring
Associated Language « Class-Relation Method »
Clausal Language » clause » Clean