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Topic: Scope (programming)

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In the News (Tue 18 Jun 19)

  Scope (programming) (via CobWeb/3.1 planetlab2.cs.unc.edu)   (Site not responding. Last check: 2007-10-13)
In computer programming, the scope of an identifier refers to where and when in the program the identifier can be referenced.
Scope applies to all identifiers in a program, but it is mostly used for variables, functionss and classeses.
Scope is usually hierarchical: a variable declared at local scope (for example, as a local variable inside a function) supersedes the same variable declared at global scope.
publicliterature.org.cob-web.org:8888 /en/wikipedia/s/sc/scope__programming_.html   (314 words)

 Encyclopedia :: encyclopedia : Scope (programming) (via CobWeb/3.1 planetlab2.cs.unc.edu)   (Site not responding. Last check: 2007-10-13)
A namespace is a scope that uses the enclosing nature of the scope to group logically related identifiers under a single identifier.
Static scope is standard in modern functional languages such as ML and Haskell because it allows the programmer to reason as if variable bindings are carried out by substitution.
Correct implementation of static scope in languages with first-class nested functions can be subtle, as it requires each function value to carry with it a record of the values of the variables that it depends on (the pair of the function and this environment is called a closure).
www.hallencyclopedia.com.cob-web.org:8888 /topic/Scope_(programming).html   (1156 words)

 scope - definition by dict.die.net
The scope of all their pleading against man's authority, is to overthrow such laws and constitutions in the church.
In the fate and fortunes of the human race, scope is given to the operation of laws which man must always fail to discern the reasons of.
An inner block may contain a redeclaration of the same identifier in which case the scope of the outer declaration does not include (is "shadowed" or "occluded" by) the scope of the inner.
dict.die.net /scope   (325 words)

 Scope (programming) - Wikipedia, the free encyclopedia
In computer programming in general, a scope is an enclosing context.
This is a property of the program text and unrelated to the runtime call stack.
Lexical scoping was first introduced in Lisp 1.5 (via the FUNARG device developed by Steve Russell, working under John McCarthy) and added later into Algol 60 (also by Steve Russell), and has been picked up in other languages since then.
en.wikipedia.org /wiki/Scope_(programming)   (1279 words)

 Scope in Programming Languages
Scope is an important concept in programming languages – one cannot read or write large programs without properly understanding the concept of scope.
The scope of a variable in a program is the lines of code in the program where the variable can be accessed.
The referencing environment of a procedure is the set of all the variables whose scope extends to the procedure.
phobos.ramapo.edu /~amruth/grants/problets/courseware/scope/home.html   (555 words)

 Seven steps for avoiding scope creep
Scope creep can originate from several sources and is a leading cause of project failure when handled poorly.
With no formal project agreement to work from, the scope of this project changed constantly, even daily, and all efforts, from development to sales and quality assurance, became stunted by the massive workload a changing vision created.
The effects of scope creep are not always negative, depending on your situation.
builder.com.com /5100-6315-1045555.html   (886 words)

 Scope Chain and Memory waste in Flash MX
Garbage collectors are a full topic on their own, way beyond the scope of this paper, with techniques such as "reference count" and "mark and sweep" to keep track of which objects are still alive.
If the object sitting on top of the scope chain does not contain the desired variable, Flash will move deeper to the next object and repeat the process until either the variable is found or all the objects in the scope chain have been inspected.
For assignment, apparently, the prototype chain of the objects in the scope chain is not inspected.
www.timotheegroleau.com /Flash/articles/scope_chain.htm   (5220 words)

 Scope And Closures
A programming language is said to be lexically scoped if names for variables and methods are looked up according to the textual arrangement of their definitions.
This is because a dynamically scoped variable is looked up in the call stack that is active at the moment when a name needs to be resolved and found in the most recent stack frame.
This is the very reason why closures and local method definitions have not been added to the Java programming language (and other C-like languages): because of their implementation schemes for local variables, these languages would not be able to guarantee safe access to arbitrary variables in the lexical scope in the case of closures.
c2.com /cgi/wiki?ScopeAndClosures   (1251 words)

 Javascript Entry - Cody Lindley: Javascript Tidbits: Scope
First I want to explain the concept of scope in programming terms, and then secondly explain the concept of scope in regards to JavaScript and the browser window.
The scope in the context of a programming language is a region in code where values are defined.
Although the z variable is defined with the same identifier (z), the scope of the z variable is different in each case.
codylindley.com /Javascript/293/javascript-tidbits-scope   (690 words)

 Lexical Scoping
(Or "static scope") In a lexically scoped language, the {scope} of an {identifier} is fixed at {compile time} to some region in the {source code} containing the identifier's declaration.
Statically scoped languages differ as to whether the scope is limited to the smallest {block} (including {begin}/end blocks) containing the identifier's declaration (e.g.
Compilers for these languages typically use quite a different symbol-table structure; each lexical scope creates a new symbol table, and nested lexical scopes are represented as a SpaghettiStack of these tables (a structure constructed by pushing and popping, in which the popped frames remain in place and refer to the parent frames).
c2.com /cgi/wiki.pl?LexicalScoping   (1295 words)

 Science/Laboratories Facilities Experience
Programming, planning and design of 25,400 SF renovation and additions to independent school science building for middle and upper school science.
Programming, planning and design of major addition and renovations to Troy High School including 18 science lab/classrooms, 11 math labs, science and mathematics remedial spaces, science research space, and a large, high-bay, flexible student project space.
Programming, planning and design of three-story renovation and two story addition to inner city public high school for math and science.
www.insideoutarch.com /science_projects.htm   (1097 words)

 Programming on SCOPE - Image Format
The scope image format is defined in the header file "scope.h".
A SCOPE image file comprises a 512 byte header, followed by the image data, followed by optional statistics information, pseudo-colour mapping, overlay memory and feature vector data.
The first two bytes of this header provide a means of checking that this is indeed a SCOPE image file.
www.taurusstudio.net /research/scope/format.htm   (741 words)

 WBDG: Architectural Programming
Today, we define architectural programming as the research and decision-making process that identifies the scope of work to be designed.
Programming and its attention to the users of buildings was not a priority.
Prior to the beginning of the process of programming a project, the programmer and the client-owner develop a list of the stakeholders to be involved.
www.wbdg.org /design/dd_archprogramming.php   (2738 words)

 Charming Python: Functional programming in Python, Part 2   (Site not responding. Last check: 2007-10-13)
However, what appears as the function's global scope is not necessarily the same as the true module global scope, nor identical to a different closure's "global" scope.
David's previous column on functional programming in Python is an introduction to this topic.
I have found it much easier to get a grasp of functional programming in the language Haskell than in Lisp/Scheme (even though the latter is probably more widely used, if only in Emacs).
www-106.ibm.com /developerworks/linux/library/l-prog2.html   (1942 words)

 Programming on SCOPE - Image Processing Programs
This program uses a set of covariance matrices (see class/covar) to calculate the discriminant coefficients for each of a set of texture classes.
Program to adjust image for lighting variations: light_comp divides the input image by the registration image on a pixel by pixel basis
This is the main program for lambert which may be used to illuminate a depth map.
www.taurusstudio.net /research/scope/program.htm   (2126 words)

 Scope - Welcome
Scope is a framework built around an extensible implementation of the Hierarchical Model-View-Controller (HMVC) pattern similar to the pattern described in.
Applications developed using Scope are "view-agnostic": a Swing application uses the same infrastructure and patterns as a web application that happens to use XML/XSLT to generate HTML, or a JSP-based application.
Scope is distributed with a set of designed to act as tutorials in the use of various features of the framework.
scope.sourceforge.net   (444 words)

 SCOPE - South Campus Organization for Programming Excellence   (Site not responding. Last check: 2007-10-13)
SCOPE is a "community council" within the Office of Residence Life.
While SCOPE is in fact a community council, we operate slightly different than traditional councils in the residence halls.
SCOPE is made up of South Campus residents who want to improve and enhance the community through large scale and, sometimes, campus-wide programming.
sumweb.syr.edu /res-life/scope.htm   (283 words)

 The C++ Programming Language - Scope and Lifetime   (Site not responding. Last check: 2007-10-13)
Scope is the range of statements in a program where an item can be used.
Note that during the execution of the program, an item may exist but not be accessible.
The scope of an item can be block, local, module, global, or system.
www.amman.edu /cpp/Scope/Scope.html   (409 words)

 Programming Help - scope question :   (Site not responding. Last check: 2007-10-13)
Within the scope of a local variable, it is a compile-time error to
The scope of a local variable declared in a switch-block of a switch
The scope of a local variable declared in a for-initializer of a for
www.techieone.com /detail-6549367.html   (817 words)

 XST: Embedded Scope Transformation
Rather than representing Scope Transformation as an operation of its own, producing a new set, Scope Transformation should be an "embedded" characteristic of a set, causing the set to produce its elements with differing scopes than it otherwise would.
The methods :each and :element are surely impacted by any Scope Transform that is in effect, in that they must produce and respond to the mapped scopes rather than the ones in the base set.
The method :cardinality is interesting because it is possible for a Scope Transform to change the cardinality of a set (its number of records), by mapping some records completely out of existence.
www.xprogramming.com /xpmag/xstEmbeddedScopeTransform.htm   (2417 words)

 Io (programming language) - Wikipedia, the free encyclopedia
Io is a pure object-oriented programming language inspired by Smalltalk, Self, Lua, Lisp and NewtonScript.
Io uses actors for concurrency, a technique rarely used in modern programming languages.
In Io specifically, a new, empty object is created and only the differences between it and its parent are stored within the new object; this behaviour is known as differential inheritance.
en.wikipedia.org /wiki/Io_programming_language   (543 words)

 Variable Scope - Programming in the Large   (Site not responding. Last check: 2007-10-13)
A program unit is defined as a ‘file’ containing data and functions.
C++ includes the extern construct which enables local identifiers to be accessed from outside the program unit in which they are declared.
External variables and functions can be exported from one program unit to be used in other program units.
www.infj.ulst.ac.uk /~pnic/BScNotes/c_recap/tsld020.htm   (87 words)

 C++ scope rules - GameDev.Net Discussion Forums
Since 'i' is declared within the scope of the for loop, it should go out of scope as soon as the for loop is done.
In ANSI C++, k and i are in the same scope.
The scope of a variable lasts in its own level and its children unless its name is reused, it is ignored till the reused name is complete.
www.gamedev.net /community/forums/topic.asp?topic_id=76033   (604 words)

 scope-art.com international art fairs - Overview Miami
Challenging passive viewing, Scope Miami continues to redefine what an art fair is with an artist-designed 40,000 square-foot pavilion, located in Roberto Clemente Park, the heart of Miami’s Wynwood Art District.
Scope programming will also be featured throughout Miami, including the Townhouse Hotel.
Scope’s continued mission is to turn viewers into users.
www.scope-art.com /index.php?option=com_content&task=view&id=39&Itemid=92   (183 words)

 Creating a Scope and Sequence for the Workshop Rotation Model
One of the original impulses of The Workshop Rotation Model movement was to recover the local congregation's ownership of its teaching ministry and the "permission" to reinvent its program as the time and circumstances required.
A consensus has emerged that a 5 or 6 year Scope and Sequence is best with a certain set of key stories repeated after 3 years in the Sequence.
Another great reason to extend your Scope and Sequence beyond Sunday School is this: you can't teach everything you want to teach in a five year, 50 story rotation schedule.
www.rotation.org /scopeseq.htm   (7116 words)

 Journal of Functional Programming   (Site not responding. Last check: 2007-10-13)
The scope of JFP is anything related to functional programming.
Foundations of functional programming includes topics such as formal semantics, abstract interpretation, combinators and lambda calculi, term and graph rewriting, logic, type theory, and category theory.
In particular, although the hallmark of functional programming is perhaps its emphasis on sound principles, it is also true that these very same principles have had significant influence on other programming paradigms, and we see this as a Good Thing.
www.cambridge.org /journals/jfp   (274 words)

 Novemberborn: Getting Funky With Scopes and Closures
You could view the scope as an object as well: the variables you use are simply properties on this object.
Normally you can’t access this scope object, it is implied by the language and everything is handled by the interpreter.
This latter technique is referred to as Block Scope.
novemberborn.net /javascript/scopes-and-closures-funk   (676 words)

 programming:cpp [the eTheist wiki]
A programming language must have three features to be classified as “object oriented”.
function from within the program, whereas this is completely legal in C. In addition, C++ is much more strict about various features; for example, it lacks implicit type conversion between unrelated pointer types and does not allow a function that has not yet been declared to be used.
The below program will ask for a student’s SAT scores, GPA, and college credit count to determine whether or not the student is available for admission or transfer to the college.
etheism.org /doku.php?id=programming:cpp   (6564 words)

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