Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Statically typed language


Related Topics

In the News (Sat 26 Dec 09)

  
  Programming language - Facts, Information, and Encyclopedia Reference article
Most mainstream statically typed languages, such as C, C++, C#, Java and Delphi, require all types to be specified explicitly; advocates argue that this makes the program easier to understand, detractors object to the verbosity it produces.
Functional languages often restrict names to denoting run-time computed values directly, instead of naming memory locations where values may be stored, and in some cases refuse to allow the value denoted by a name to be modified at all.
Languages that use garbage collection are free to allow arbitrarily complex data structures as both expressed and denoted values.
www.startsurfing.com /encyclopedia/p/r/o/Programming_language.html   (1885 words)

  
 Type system - Wikipedia, the free encyclopedia
For example, in the C programming language, a value of the "float" data type represents a 32-bit quantity that represents a single-precision floating-point number (likely to be as defined by the IEEE floating-point standard).
Advocates of strongly typed languages such as ML and Haskell have suggested that almost all bugs can be considered type errors, if the types used in a program are sufficiently well declared by the programmer or inferred by the compiler.
A type-checker for a statically typed language must verify that the type of any expression is consistent with the type expected by the context in which that expression appears.
en.wikipedia.org /wiki/Dynamic_typing   (3151 words)

  
 StaticallyTypedLanguages - The Fellowship of Hobbyist Programmers   (Site not responding. Last check: 2007-10-25)
Statically typed languages often allow for TypeInference, eliminating the need for the programmer to explicitly give all variables/bindings a data type.
For example, CommonLispLanguage is a dynamically typed language, with strong type checking: (+ 1 "a") is an error, because 1 is an integer and "a" is a string.
In Java (and also in C#) all objects have a static type, which is specified at the time of declaring the object; furthermore, this type is equal to the class the object is an instance of.
www.hprog.org /fhp/StaticallyTypedLanguages   (478 words)

  
 Pike programming language - Wikipedia, the free encyclopedia
Pike is an interpreted, general-purpose, high-level, cross-platform, dynamic programming language, with a syntax similar to that of C.
Programmers at Lysator in Linköping, Sweden, most notably Fredrik Hübinette and Per Hedbor, separated the language and virtual machine from the rest of the MUD driver, and used it as a rapid prototyping language for various applications.
That kind of behaviour is traditionally considered restrictive and limiting by proponents of dynamically typed language.
en.wikipedia.org /wiki/Pike_programming_language   (781 words)

  
 split-s: Strong/Weak vs Static/Dynamic typing   (Site not responding. Last check: 2007-10-25)
Informally, a statically typed language enforces type consistency at compilation time, whereas a dynamically typed language defers this until runtime.
With a statically typed language, on the other hand, the type of the actual parameters must match those of the formal parameters in a call.
It is a little harder to define what a strongly vs weakly typed language is, but it revolves around the notion of how much effort does the language put into checking type consistency (either at runtime or compile time).
split-s.blogspot.com /2005/02/strongweak-vs-staticdynamic-typing.html   (1078 words)

  
 Chapter 11, Outline
In a statically typed language we say the class of the declaration is the static class for the variable, while the class of the value it currently holds is the dynamic class.
Most statically typed OO languages constrain the dynamic class to be a child class of the static class.
The static class is the class of the declaration, the dynamic class is the class of the value currently held.
userwww.sfsu.edu /~levine/levine/OOP-slides/ch11/ch11.html   (1032 words)

  
 Dynamic Reflection for a Statically Typed Language   (Site not responding. Last check: 2007-10-25)
BETA is a compiled and statically typed object-oriented programming language.
This is achieved through a novel language construct, the attribute reference, on top of which the metalevel interface is built.
In this model, an open implementation of compiled language is achieved by providing the runtime virtual machine with a metalevel interface supporting runtime reflection.
www.daimi.au.dk /~beta/Mli/extbetapaper.html   (113 words)

  
 Dynamic typing in OCaml | Lambda the Ultimate
I'm not interested in a language that is "pure X", for most values of X. Especially for a language that purports to be "general purpose", it's important that it find a middle ground in order to provide the best tools for the job at hand.
Statically typed languages have to reduce the expressivity of the "base" language in order to be able to make predictions about program behavior at runtime.
Statically typed languages (those with the goal of enforcing correct type usage) have to reject programs for which they don't know whether they are correct or not.
lambda-the-ultimate.org /node/view/983   (5157 words)

  
 Abstraction and Efficiency
Bill Venners: In the static versus dynamic typing debate, the proponents of strong typing often claim that although a dynamically typed language can help you whip up a prototype very quickly, to build a robust system you need a statically typed language.
In a dynamically typed language, you do an operation and basically hope the object is of the type where the operation makes some sense, otherwise you have to deal with the problem at runtime.
On the other hand, you can't build a system that is completely statically typed, because you would have to deploy the whole system compiled as one unit that never changes.
www.artima.com /intv/abstreffi2.html   (1257 words)

  
 Correct Static:Dynamic Typing
In a dynamically typed language most operations are type-checked just before they are performed.
In a statically typed language, every expression of the language is assigned a type at compile time.
A [static] type system is that component of a [statically] typed language that keeps track of variables and, in general, of the types of all expression in a program
www.cs.mun.ca /~ulf/pld/s/typing-c.html   (496 words)

  
 Programming Language Comparison
The primary benefit of parameterized types is that it allows statically typed languages to retain their compile-time type safety yet remain nearly as flexible as dynamically typed languages.
Lexical closures (also known as static closures, or simply closures) take this one step further by bundling up the lexical (static) scope surrounding the function with the function itself, so that the function carries its surrounding environment around with it wherever it may be used.
The Capers Jones Language Level is a study that attempts to identify the number of source lines of code is necessary in a given language to implement a single function point.
www.jvoegele.com /software/langcomp.html   (5997 words)

  
 Why type systems are interesting - part II | Lambda the Ultimate
As for being useful in evaluating languages today, it clearly is valuable: some of us have made the switch from untyped languages to typed ones and have direct experience of the benefits.
With his dynamic language, he's been able to express what he means sufficiently well that his program works to the extent he's able to observe it in a sufficient number of cases.
Python and Ruby being latently-typed and ML statically typed, it's still important to realize when you are, in fact, reproducing an extant language feature, the pros and cons of that feature as it is implemented in a historical context, and how those pros or cons might change given your other design decisions.
lambda-the-ultimate.org /node/view/175   (16791 words)

  
 James Strachan's Weblog
Most code involves method calls and argument passing; in a statically typed language the IDE knows the names of all methods, argument parameters and types that are available.
However I don't really buy the argument that using a dynamic language and writing more unit tests to catch what a statically typed language does for you makes you that much more efficient if you use a decent IDE and a statically typed language.
With a statically typed language you still need to write good unit tests but at least you've less to test - you can just focus on testing behaviour rather than that you're invoking the right methods on the right objects.
radio.weblogs.com /0112098/2003/05/09.html   (519 words)

  
 Dynamic Inheritance In A Statically Typed Language - Ernst (ResearchIndex)
There is a long-standing schism in object-orientation between the safe but rigid statically typed languages, and the exible but less safe dynamically typed languages.
This paper presents an enhancement of the exibility and expressive power of a statically typed language, based on an inheritance mechanism which allows both compile-time and run-time construction of classes, as well as dynamic specialization of objects.
1 Re ection in a Statically Typed and Object Oriented Language..
citeseer.ist.psu.edu /379665.html   (756 words)

  
 Nemerle - Wikipedia, the free encyclopedia
Another very important feature is taking a high-level approach in all aspects of the language - trying to lift as much of the burden from the programmer as possible.
Features that come from the functional land are variants (aka algebraic data types), pattern matching, type inference and parameter polymorphism (aka generics).
The syntax is very similar to C#'s and other.NET languages.
en.wikipedia.org /wiki/Nemerle   (606 words)

  
 BOO - Type Inference
Static typing is about the ability to type check a program for type correctness.
Static typing is about being able to deliver better runtime performance.
Static typing is not about putting the burden of declaring types on the programmer as most mainstream languages do.
boo.codehaus.org /Type+Inference   (753 words)

  
 Duck Typing - BOO - Confluence   (Site not responding. Last check: 2007-10-25)
Boo is a statically typed language, like Java or C#.
But using a statically typed language sometimes constrains you to an inflexible and verbose coding style, with the sometimes necessary type declarations (like "x as int", but this is not often necessary due to boo's Type Inference) and sometimes necessary type casts (see Casting Types).
The term is inspired by the ruby programming language's duck typing feature ("If it walks like a duck and quacks like a duck, it must be a duck").
docs.codehaus.org /display/BOO/Duck+Typing   (792 words)

  
 This is a list of concepts you must understand to pass the cerfication test   (Site not responding. Last check: 2007-10-25)
Why: Languages of both kinds are common, and modern languages often combine aspects of both.
You must also be able to illustrate at least one way in which a statically typed language can provide some of the flexibility of a dynamically typed language.
If your language locates exception handlers using a static scheme, you cannot do this, because all exceptions that occur at a given point in the program, in the average routine in this example, will be sent to the same handler, whose identity is determined at compile time.
www.cs.colorado.edu /~clayton/certlist.html   (3528 words)

  
 Dynamic Typing in a Statically Typed Language - Abadi, Cardelli, Pierce, Plotkin (ResearchIndex)
Abstract: Statically typed programming languages allow earlier error checking, better enforcement of disciplined programming styles, and generation of more efficient object code than languages where all type consistency checks are performed at run time.
However, even in statically typed languages, there is often the need to deal with data whose type cannot be determined at compile time.
To handle such situations safely, we propose to add a type Dynamic whose values are pairs of a value v and a type tag...
citeseer.ist.psu.edu /65744.html   (297 words)

  
 Papers on Typed Assembly Language
I would like to announce that revised and extended versions of two papers on typed assembly language, "From System F to Typed Assembly Language" and "Stack-Based Typed Assembly Language," are now available at the URL http://www.cs.cmu.edu/~crary/papers/.
TAL is sufficiently expressive to serve as a target language for compilers of high-level languages such as ML.
We show that STAL is sufficiently expressive to support languages such as Java, Pascal, and ML; constructs such as exceptions and displays; and optimizations such as tail call elimination and callee-saves registers.
www.seas.upenn.edu /~sweirich/types/archive/1999-2003/msg00079.html   (345 words)

  
 Software Prototyping
Ousterhout was the first to argue that a two language approach is both feasible and practical for software development [Ousterhout97] and created the scripting language (TCL) that has a transparent interface with C and can be extended using C modules.
Supporting prototyping requires a language which can support transformation of components previously written in cscritping langue into low level statically typed compiled language (C or C++) and vise versa.
On the other hand, if developers choose to use a single dynamically typed language they often encounter problems in the latter phases of development when performance, scalability, and maintainability become critical issues.
www.softpanorama.org /SE/software_prototyping.shtml   (1471 words)

  
 Todd Ditchendorf’s Blog » Blog Archive » Typesafe enum pattern in Python
Static typing — I realize this one is highly debatable, but if Python at least offered the option, it might be taken more seriously for large systems programming.
While python isn’t as dynamic as perl, it still counts as dynamically typed, because python *references* are dynamically typed, and because you can do fun things like add and remove methods and properties on the fly.
Both things are way different to Java and would break any statically typed language, because even if you think you’ve got a Suit object for example, there’s no guarantee that it even has a ‘name’ property.
www.ditchnet.org /wp/2005/05/08/typesafe-enum-pattern-in-python   (1582 words)

  
 Code-typed databases
When the type information is part of the code, we generally call it "statically typed".
The assumption breaks down when the data is persistent (for example, when it is stored in a database) so that the code may change yet still use the same data.
C++ is a good example of statically typed language with an expressive type system.
www.logarithmic.net /pfh/blog/01139299425   (614 words)

  
 Dejan's Weblog   (Site not responding. Last check: 2007-10-25)
In any programming language with generics, static typing generally does not take away any of the flexibility yet it provides one with the ability to catch many errors at compile time.
However, languages with dynamic typing only can be more productive when types depend on the outside environment.
Static typing in this case gives you an additional headache without any of the benefits.
www.jelovic.com /weblog/e97.htm   (226 words)

  
 Built-in Type Safety?
C++ is a statically typed language but its type system is not bulletproof.
Static typing doesn't cure all known defects, of course.
And what's worse, in a mixed language system, such as the one deployed on the Talk-To-Me, they can change size and alignment when passing from C to C++.
www.artima.com /cppsource/typesafetyP.html   (3172 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.