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Topic: Abstract data type


  
 Abstract data type - Wikipedia, the free encyclopedia
In computer science, an abstract data type (ADT) is a mathematical specification of a set of data and the set of operations that can be performed on the data.
Because some ADTs are so common and useful in computer programs, some programming languages are building implementations of ADTs into the language as native types or adding them into their standard libraries.
Typically, inputs, outputs, preconditions, postconditions, and assumptions to the ADT are specified as well.
http://en.wikipedia.org/wiki/Abstract_data_type   (878 words)

  
 Algebraic data type - Wikipedia, the free encyclopedia
An algebraic data type is a datatype whose each value is data from other datatypes wrapped in one of the constructors of the datatype.
Operations on algebraic data types can be defined by using pattern matching to retrieve the arguments, for example, consider a function to find the depth of a Tree:
In contrast to other datatypes, the constructor is not executed and the only way to operate on the data is to unwrap the constructor using pattern matching.
http://en.wikipedia.org/wiki/Algebraic_data_type   (555 words)

  
 Topic #1: The Abstract Data Type
Data structures as a separation of a conceptual definition of a data structure and its implementation.
ADTs as a mechanism to limit the interaction between algorithms and associated data structures.
This last step is where we code our variables, functions, structures, etc. A data structure is an implementation of an ADT in a high-level language, that is, a combination of variables in some manner.
http://www.cs.mcgill.ca/~cs251/OldCourses/1997/topic1   (1420 words)

  
 An abstract data type requirement
Operations for the input and output of values of the type.
For any abstract data type, one way to assist the precise definition of operations for the type is to consider possible operations from the following categories:
2.4.1.1 Operations for the input and output of values of the type
http://www.scism.sbu.ac.uk/law/Section2/chap4/s2c4p1.html   (363 words)

  
 Abstract Data Type
An abstract data type (ADT) is a data type defined only in terms of the operations that may be performed on objects of the type.
Users (programmers) are allowed to examine and manipulate objects using only these operations and they are unaware of how the objects are implemented in the programming language.
Adapted from Concepts in Data Structures & Software Development by Schneider & Bruell
http://www.rwc.uc.edu/COOK/ADT/ADT.HTM   (147 words)

  
 Abstract Data Type
Abstract data types, include files, non-inline member functions, assertions.
The interface file, however, must contain the definition of the class, and that involves specifying all the data members.
Believe it or not: Failure to turn off assertions and to turn on optimizations is often the reason for false claims of C++ slowness.
http://www.relisoft.com/book/lang/scopes/11abstr.html   (966 words)

  
 CSCI 2170 Lab 11 - Introduction to Abstract Data Types & Stacks
Therefore, a stack is the logical data structure to use for storing return addresses and local variables during subprogram invocations.
The stack data structure is one example of a restricted list.
Test your program with the strings listed above and with a string which is not a palindrome to demonstrate that it works.
http://www.mtsu.edu/~csci217/manual/lab11/lab11.html   (1867 words)

  
 Glossary
We use the term abstract data type differently from the usual definition used in computer science research.
Here, and abstract data type is a type with a well-defined interface and semantics.
Examples of implementation types are: list, doubly-linked list, circular list, binary tree, table.
http://dept-info.labri.u-bordeaux.fr/~strandh/Teaching/MTP/Common/Strandh-Tutorial/glossary.html   (725 words)

  
 Lecture 1 - Abstract Data Type
We define the data type - its values and operations - without referring to how it will be implemented.
In general terms, an abstract data type is a specification of the values and the operations that has 2 properties:
Returning to our example of the fraction data type, how might we actually implement this datatype in C? Implementation 1
http://www.csi.uottawa.ca/~holte/T26/abstract-data-type.html   (669 words)

  
 abstract data type
Note: Since the data values and operations are defined with mathematical precision, rather than as an implementation in a computer language, we may reason about effects of the operations, relations to other abstract data types, whether a program implements the data type, etc.
Definition: A set of data values and associated operations that are precisely specified independent of any particular implementation.
Go to the Dictionary of Algorithms and Data Structures home page.
http://www.nist.gov/dads/HTML/abstractDataType.html   (223 words)

  
 Abstract Data Type
You do not need to add the header file "student.h" to the project as it will be included by the others.
STUDENT.H - header file describing types and interface to operations for those types.
Create a project and add the CPP files to the project.
http://www.shsu.edu/~csc_kth/common/165/absdt.html   (76 words)

  
 What is an "Abstract Data Type"?
Concerning the ADT, back in high school days (late 80's early 90's) ADT was always a conceptual structure only, like a stack/heap/queue.
They were defined by algorithmic pseudocode and could be implemented any way you like as long as they followed the conceptual algorithm (has a pop, has a push, LIFO, etc).
However, you can define an ADT without using interfaces (some languages don't even have interfaces).
http://www.codecomments.com/message369948.html   (1319 words)

  
 Abstract data type at opensource encyclopedia
Arrays, linked lists, and binary trees—among other data structures—can all support these operations, with different performance tradeoffs.
For example, a sequence (or list) could be defined as follows.
Fonts.com - Download Mac and Windows Fonts: Find Fonts »
http://www.wiki.tatet.com/Abstract_data_type.html   (296 words)

  
 [No title]
Type And Variable Declarations Which Define The Object Are Encapsulated In The Package Body
Types Created From Dynamically Allocated Memory, Can Not Use Predefined Assignment, They Require A Copy Procedure
The Representation Is Defined By A Type Definition
http://www.seas.gwu.edu/~csci131/spring97/lect2.html   (678 words)

  
 Polymorphic Type Inference and Abstract Data Types - Lufer, Odersky (ResearchIndex)
However, in most of these languages, implementations of abstract data types are not first-class values.
0.1: Full Abstraction for First-Order Objects with Recursive Types..
Polymorphic Type Inference and Abstract Data Types, Transactions of Programming Languages and Systems, 1994.
http://citeseer.ist.psu.edu/112329.html   (428 words)

  
 Abstract Data Type Systems
ADTS generalize inductive types as they are defined in the calculus of constructions, by providing definitions of functions by pattern matching on one hand, and relations among constructors of the inductive type on the other hand.
This paper is concerned with the foundations of an extension of pure type systems by abstract data types, hence the name of Abstract Data Type Systems.
It also generalizes the first-order framework of abstract data types by providing function types and higher-order equations.
http://www.lix.polytechnique.fr/~jouannaud/abstracts/adts.html   (192 words)

  
 abstract data type from FOLDOC
Abstract data types are central to object-oriented programming where every class is an ADT.
A classic example of an ADT is a stack data type for which functions might be provided to create an empty stack, to push values onto a stack and to pop values from a stack.
This allows the implementation of the type to be changed without requiring any changes outside the module in which it is defined.
http://lgxserver.uniba.it/lei/foldop/foldoc.cgi?abstract+data+type   (120 words)

  
 Abstract data type - definition of Abstract data type by the Free Online Dictionary, Thesaurus and Encyclopedia.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.
Abstract data type is not available in the general English dictionary and thesaurus.
Abstract data type - definition of Abstract data type by the Free Online Dictionary, Thesaurus and Encyclopedia.
http://www.thefreedictionary.com/abstract+data+type   (90 words)

  
 Abstract Data Type (ADT)
A data type whose properties (domain and operations) are specified independently of any particular implementation.
http://www.cs.usm.maine.edu/~walkers/cos161/Ch3/sld002.htm   (15 words)

  
 The Sequence Abstract Data Type
One definition of the Sequence abstract data type is:
-- the data type that this is a sequence of (in most cases it will be an ASCII character).
A text editor maintains a sequence of characters, by implementing some variant of the abstract date type Sequence.
http://www.cs.unm.edu/~crowley/papers/sds/node3.html   (136 words)

  
 2.1 List Abstract Data Type
A list is a sequence of zero or more elements of a given type
http://lcm.csa.iisc.ernet.in/dsa/node15.html   (82 words)

  
 Comparison of Abstract Data Type and. . . (ResearchIndex)
5 A metric-based approach to detect abstract data types and ab..
25 Recovering abstract data types and object instances from a c..
14 Extracting abstract data type from c programs: A case study (context) - Canfora, Cimitile et al.
http://citeseer.ist.psu.edu/162229.html   (310 words)

  
 Tries as an Abstract Data Type
Depending on the application of the ADT, FIND may either simply indicate whether or not k is present, or it may return a value v associated with the key k.
Note that the keys must be unique; while it is relatively easy to adapt most of the data structures that we have seen so far to work with multiple elements that have the same key, the same is not true for tries.
The notion of strings used here is more general than the definition of strings in C, and is worth investigating.
http://www.eecs.harvard.edu/~ellard/Q-97/HTML/root/node23.html   (396 words)

  
 Abstract Data Type (ADT)
This section presents Abstract Data Type (ADT) view and some ways to support this view in compiler generated code.
You should understand some the effect of OOP structure on the internal code and limitation of not providing real support for OOP.
How do Modula2 and Ada support separate compilation?
http://www.ndsu.nodak.edu/instruct/juell/cs372s02/foils/adt-lo.html   (72 words)

  
 Description of simproc Abstract Data Type
As said before, the description of that abstract data typeabstract data type (types and operations) will take the form of an attributed abstract syntaxAAS.
Next: The Translation Pass Up: A Short Example: Simproc
http://www-rocq.inria.fr/oscar/www/fnc2/manual/node313.html   (33 words)

  
 Abstract data type implementation
tutorial : types and polymorphism : abstract data types
You can include descriptions and expectations in a full species definition as well.
http://www.cs.ecu.edu/~karl/astarte/typeSeq/ADTRep.html   (138 words)

  
 Prospective study of cigarette smoking, alcohol use, and the risk of diabetes in men -- Rimm et al. 310 (6979): 555 -- ...
Hours of work and the risk of developing impaired fasting glucose or type 2 diabetes mellitus in Japanese male office workers
Alcohol Consumption and the Prevalence of the Metabolic Syndrome in the U.S.: A cross-sectional analysis of data from the Third National Health and Nutrition Examination Survey
Primary Prevention of Type 2 Diabetes: Lifestyle Intervention Works and Saves Money, but What Should Be Done with Smokers?
http://bmj.bmjjournals.com/cgi/content/abstract/310/6979/555   (2419 words)

  
 SS > factoids
abstractabstract data type • Ackermann's function &; Ada • adjective order • affordance • algebra • Algol • and • P.
data abstraction • Richard Dawkins • delegation • denotational semantics • Antoine de Saint-Exupery • René Descartes • Paul A. Dirac • divisibility tests • Dynamo
tactics • Tcl •TeX • Dylan Thomas • transitive relation • Turing • Mark Twain • Tycho Brahe • type • Lao Tzu
http://www-users.cs.york.ac.uk/~susan/cyc/index.htm   (589 words)

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