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CLU    
(CLUster) An {object-oriented} programming language
developed at {MIT} by {Liskov} et al in 1974-1975.

CLU is an {object-oriented} language of the {Pascal} family
designed to support {data abstraction}, similar to {Alphard}.
It introduced the {iterator}: a {coroutine} yielding the
elements of a data object, to be used as the sequence of
values in a {for loop}.

A CLU program consists of separately compilable {procedures},
{clusters} and iterators, no nesting. A cluster is a module
naming an {abstract type} and its operations, its internal
representation and implementation. Clusters and iterators may
be generic. Supplying actual constant values for the
{parameters} instantiates the {module}.

There are no {implicit type conversions}. In a cluster, the
explicit type conversions 'up' and 'down' change between the
abstract type and the representation. There is a universal
type 'any', and a procedure force[] to check that an object is
a certain type. Objects may be mutable or {immutable}.

{Exceptions} are raised using 'signal' and handled with
'except'. {Assignment} is by sharing, similar to the sharing
of data objects in {Lisp}. Arguments are passed by
{call-by-sharing}, similar to {call-by-value}, except that the
arguments are objects and can be changed only if they are
mutable. CLU has {own variables} and multiple assignment.

See also {Kamin's interpreters}, {clu2c}.

["CLU Reference Manual", Barbara Liskov et al, LNCS 114,
Springer 1981].

E-mail: Paul R. Johnson .

{Versions for Sun and VAX/VMS
(ftp://pion.lcs.mit.edu/pub/clu/)}. {Portable version
(ftp://mintaka.lcs.mit.edu/pub/dcurtis/)}.

(1994-12-16)


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  • California Lutheran University
    Choose from 44 majors and 48 minors, each with valuable research and professional experiences for students Put your passion to work and earn an advanced degree by learning from leading experts in their fields For working professionals who want to finish their degree, we'll help you get there
  • CFP vs. CLU vs. ChFC: Which Financial Credential Is Right for You?
    Compare CFP, CLU, and ChFC designations to determine which financial credential matches your career goals and expertise in life insurance, financial planning, or estate planning
  • California Lutheran University - Wikipedia
    California Lutheran University (CLU, Cal Lutheran, or Cal Lu) is a private university in Thousand Oaks, California, United States It was founded in 1959 and is affiliated with the Evangelical Lutheran Church in America, but is nonsectarian [4]
  • CLU® Chartered Life Underwriter Specialized Insurance Designation
    The CLU® certification gives financial professionals an in-depth understanding of life insurance products, underwriting, and solutions as a key part of a goal-based financial plan
  • CLU | FINRA. org
    Candidates must have three years of full-time business experience within the five years preceding the awarding of the designation
  • Cal Lutheran Login
    Forgot your password? If you still can't access your account after trying the account tools, please contact the Help Desk
  • What Is a Chartered Life Underwriter (CLU)? - SmartAsset
    A chartered life underwriter, or CLU, is a type of financial advisor who specializes in life insurance for estate planning purposes Here's what to know
  • California Lutheran University - Official Athletics Website
    Your information, including personal information and interactions with this site, may be monitored, recorded, or collected through these tools and further used or disclosed by us, our service providers and authorized third parties
  • How to reap the benefits of the Chartered Life Underwriter designation
    Whether the CLU is worth it depends on the individual professional However, getting the CLU can be a worthwhile investment if you specialize in life insurance, estate planning, and business
  • Chartered Life Underwriter (CLU) - ABTrainingCenter. com
    The Chartered Life Underwriter (CLU) designation is the undisputed professional credential for persons involved in the protection, accumulation, preservation, and distribution of the economic values of human life





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