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Topic: Primitive type

Ads by Google Related Topics data types abstract data types movable type      Primitive type - Wikipedia, the free encyclopedia Depending on the language and its implementation, primitive types may or may not have a one-to-one correspondence with objects in the computer's memory. In computer science, primitive types, as distinct from composite types - are datatypes provided by a programming language as basic building blocks. Integer addition, for example, can be performed as a single machine instruction, and some processors offer specific instructions to process sequences of characters with a single instruction. http://en.wikipedia.org/wiki/Primitive_type   (323 words)      Data type - Wikipedia, the free encyclopedia Data type is a type of data in a type system in computer programming. A data type describes representation, interpretation and structure of values manipulated by algorithms or objects stored in computer memory or other storage device. The type system uses data type information to check correctness of computer programs that access or manipulate the data. http://en.wikipedia.org/wiki/Datatype   (361 words)      Types, Values, and Variables Because the null type has no name, it is impossible to declare a variable of the null type or to cast to the null type. Two reference types are the same compile-time type if they have the same binary name (§13.1), in which case they are sometimes said to be the same class or the same interface. Compatibility of the value of a variable with its type is guaranteed by the design of the Java programming language. http://java.sun.com/docs/books/jls/second_edition/html/typesValues.doc.html   (4876 words)      .NET: Type Fundamentals -- MSDN Magazine, December 2000 When this statement is compiled, the compiler detects that the System.Int32 type is a value type and optimizes the resulting IL code so that this "object" is not allocated from the heap; instead, this object is placed on the thread's stack in the local variable a. Since you cannot declare a new value type or a new reference type using a value type as a base class, value types should not have virtual functions, cannot be abstract, and are implicitly sealed (a sealed type cannot be used as the base of a new type). The common language runtime first ensures that the reference type variable is not null and that it refers to an object that is a boxed value of the desired value type. http://msdn.microsoft.com/msdnmag/issues/1200/dotnet   (2889 words)      IBM Software - NetRexx - Language Definition - Binary Values and Operations These primitive types are used for compact storage of numbers and for fast binary arithmetic, features which are built-in to the hardware of most computers. Numbers are given the smallest possible primitive numeric type that will contain the literal without loss of information (or minimal loss of information for numbers with decimal or exponential parts). Note: At all times (whether in binary classes or not) implementations may use primitive types and operations, and techniques such as late binding of types, as an optimization providing that the results obtained are identical to those defined in this language definition. http://www-306.ibm.com/software/awdtools/netrexx/library/nrlbinar.html   (1027 words)      [No title] Type long should only be used in the rare case where you need to store integer values smaller than -2,147,483,648 or larger than +2,147,483,647 (the limits for type int). Like object references, primitive type variables are always passed by value. "Everything is an Object" (well, almost everything) The exception to the "everything in Java is an object" rule is the so-called "primitive" types, with which we are all familiar from other programming languages. http://www.fiu.edu/~shawg/3337/primitives.doc   (338 words)      A Note on Types domain, type and instantiation errors arise from the failure of an argument of a predicate to satisfy the corresponding type element in the input term of the usage statements. In addition the ISO standard specifies various types of allowable input or output arguments for various predicates. , etc), but also non-Prolog types, such as the fact that the input to a given argument should be a positive integer, and even instantiation patterns. http://xsb.sourceforge.net/manual1/node79.html   (521 words)      Differentiate between reference and primitive types It is important to distinguish between reference and primitive types and to understand the semantics of references. For many programs, the code will contain both primitive types and their object wrappers. In addition, wrapper classes are provided for each primitive type. http://www-128.ibm.com/developerworks/java/library/j-praxis/pr8.html   (808 words)      7.2. Unboxed types and primitive operations A primitive array is heap-allocated because it is too big a value to fit in a register, and would be too expensive to copy around; in a sense, it is accidental that it is represented by a pointer. But this is not necessarily the case: a primitive value might be represented by a pointer to a heap-allocated object. boxed, which means that values of that type are represented by a pointer to a heap object. http://www.haskell.org/ghc/docs/latest/html/users_guide/primitives.html   (973 words)      [No title] In addition, both solutions are based on the view that a pointer or a reference to some type is a separate type that is distinct from the type that it is referencing. In the case of a complex type such as a classifier, it makes sense that the type is external to the property. Another potential problem is the handling of cases of pointers or references to constant types, such as: const int * cpi This could be solved with additional stereotypes such as «const-ptr», although that would increase the number of stereotypes needed. http://www.omg.org/issues/issue6259.txt   (1138 words)      XEmacs Lisp Reference Manual - Lisp Data Types Note that Lisp is unlike many other languages in that Lisp objects are self-typing: the primitive type of the object is implicit in the object itself. For our purposes, a type or data type is a set of possible objects. Consequently, we can ask whether an object belongs to a particular type, but not for "the" type of an object. http://www.tau.ac.il/cc/pages/docs/xemacs/lispref_16.html   (372 words)      Primitive Data Types (Java in a Nutshell) In practice, these data types are suitable for most real-number computations. There are only two possible values of this type, representing the two boolean states: on or off, yes or no, true or false. The Java floating-point types make a distinction between positive zero and negative zero, depending on the direction from which the underflow occurred. http://www.unix.org.ua/orelly/java-ent/jnut/ch02_04.htm   (2072 words)      Casting and Converting Objects and Primitive Types In many casts between primitive types, the destination can hold larger values than the source, so the value is converted easily. Casting an object to an interface means that you can call one of that interface's methods even if that object's class does not actually implement that interface. Using the classes that correspond to each primitive type, you can create an object that holds the same value. http://cispom.boisestate.edu/cis125emaxson/casting.htm   (1093 words)      Types: Widening and Narrowing For reference types, the value can be a reference to an object of a class of the variable's type, or to an object of any subclass of that. However, to treat a value in a variable of type B as an A might cause problems if that value is not in fact a reference to an object of class A. To convert towards subclasses like this is called narrowing, and will always require an explicit cast operator and a run-time check. Therefore, if a reference to an object of class A is placed in a variable of type B, there will not be any problems. http://www.cs.miami.edu/~burt/learning/Csc220.022/lessons/lesson3   (674 words)      Introduction to User-Defined Datatypes These are not ``types'' as far as the programming language is concerned. Thus, MPI_INT is a predefined handle to a datatype with type MPI_INT map {(int,0)}, with one entry of type int and displacement zero. MPI_TYPE_SIZE returns the total size, in bytes, of the entries in the type signature associated with datatype; that is, the total size of the data in a message that would be created with this datatype. http://www.netlib.org/utk/papers/mpi-book/node72.html   (704 words)      Java Primitive Types Finally, notice that each primitive data type also has a "wrapper" class defined for it. This means that you can create a "nonprimitive object" (using the wrapper class) on the heap (just like any other object) to represent the particular primitive type. These sizes do not change from one machine architecture to another (as do in most other languages). http://www.idevelopment.info/data/Programming/java/miscellaneous_java/Java_Primitive_Types.html   (198 words)      Data Types A variable of primitive type contains a single value of the appropriate size and format for its type: a number, a character, or a boolean value (see the following figure). For example, an integer value is 32 bits of data in a format known as two's complement, the value of a A variable of reference type contains a reference to (an address of) an object or an array. http://java.sun.com/docs/books/tutorial/java/nutsandbolts/datatypes.html   (438 words)      [No title] There is no permitted conversion from the null type to any primitive type. There is no permitted conversion to the null type other than the identity conversion. There is no permitted conversion from any array type to any class type other than Object or String. http://jcp.org/aboutJava/communityprocess/jsr/tiger/autoboxing.html   (1574 words)      [No title] A variable of this type refers (is bound) to its object. In reference parameter passage a copy of the arguments value (an object address) is assigned to the formal parameter. They are atomic — no attributes (instance variables) They are built into the Java language (no external class required) Primitive variable represents a value rather than an object binding. http://www.ship.edu/~dahast/csc110/Chapter5notes.doc   (721 words)      Using Primitive Types and Wrappers It has built-in numeric types similar to those in C++, but it also provides "wrapper" classes for integral and floating-point objects (see Table 1). Objects can contain objects which contain objects seemingly ad infinitum, but even the most complex objects ultimately reduce to primitive types, and primitive types ultimately get initialized with literal values, whether in source code or from external input. Because of the fixed size of primitive types, and because of the way objects are created in Java, there is no need for a http://www.freshsources.com/Mar99.html   (2256 words)      jGuru: Can the primary key in the entity bean be a Java primitive type such as int? The primary key can't be a primitive type--use the primitive wrapper classes, instead. For primary keys which map to primitive types, like int, the specification requires a primary key wrapper class. For example, you can use java.lang.Integer as the primary key class, but not int (it has to be a class, not a primitive). http://www.jguru.com/faq/view.jsp?EID=81676   (392 words)      [No title] Providing a ProbabilityDensity type that gives a closely sampled values of a pdf function solves our problem somewhat, and the solution is more general. Gerald Lee Bickle, jerry.bickle@prismtech.com Jerry.Bickle@prismtech.com) Nature: Uncategorized Issue Severity: Summary: Problem: Now that the primitive types (issue 7656) are defined in the spec, the duplicate definitions of these primitive types in the spec should be removed when specified in other types sections in the spec. The definition of what those parameters refer to would be based on the type of distribution defined by the Enum value. http://www.omg.org/issues/issue7895.txt   (1036 words)      Absolute Java: Data Type Conversions In the simplest case, a primitive widening conversion occurs transparently, as the following code snippet illustrates: Of course, whether or not the resulting value is negative will depend on the value of the high‑order bit of the target. To make sense of this section it's important for you to understand how to convert integral values (both positive and negative) between decimal (base 10), binary (base 2) and hexadecimal (base 16). http://www.absolutejava.com/main-articles/data-type-conversions   (2837 words)      ReferenceType (Java Debug Interface) The Field must be valid for this type; that is, it must be declared in this type, a superclass, a superinterface, or an implemented interface. The Fields must be valid for this type; that is, they must be declared in this type, a superclass, a superinterface, or an implemented interface. ) and primitive classes, the returned value is always null. http://aleph0.clarku.edu/java/docs/guide/jpda/jdi/com/sun/jdi/ReferenceType.html   (2122 words)      XML.com: Not My Type: Sizing Up W3C XML Schema Primitives To phrase it a little differently, the data types defined in DTDs were considered inadequate to support the requirements of electronic commerce or, more generally, of commercially reliable electronic information exchange. This sentence exists because of the design problem; lacking a concept for what a primitive data type is, the only way to define new types is by appeal to authority. The publication of W3C XML Schema (or WXS), in which one half of the specification was devoted to the definition of a type library (part two), seemed to resolve the problem. http://www.xml.com/pub/a/2002/07/31/wxstypes.html   (1077 words)      Brain.Save() - Generics and primitive types I suppose you could solve this problem by boxing your primitive ints into objects that implement an operation interface, but this solution negates any potential performance gains that a generic solution would give you. and achieve the simultaneous goals of allowing generic operations on primitive numeric types while still giving the compiler enough information during static analysis such that it can perform its optimizations. http://hyperthink.net/blog/CommentView.aspx?guid=8fcad4ad-4f71-48a9-8678-9e2c522209f9   (1157 words)      Chapter 8. Geometry There are several base formats that expect all currently bound attributes of specified data type (unsigned byte, short, or float) to be in the attribute array. Attributes specified by the format but not bound to vertices are assumed to not be present and the present data is packed with the data for each vertex starting on a 32-bit word-aligned boundary. Indexing can save system memory, but rendering performance is often lost. http://www.cs.rochester.edu/u/wyi/sgi/ch08.html   (3067 words)      [No title] (type) (unary +, -, negation, and type cast) * / % (remainder) + - (binary addition or string concatenation, and substraction) double half = 1.0 / 2; - explicit: casting int intArea = (int)(diameter * twoPi); Conversions between primitive types (other than boolean) that do not loose any information are allowed and implicit. All source files in the same directory that do not begin with a package declaration belong to the same ANONYMOUS PACKAGE. http://www.cs.indiana.edu/~chaynes/c212/212/c/3.txt   (1308 words)      Xmlizable Utilities: Class PrimitiveContentsHandler Returns the wrapper class to be used with the expected primitive. Sets the wrapper class to be used with the expected primitive. http://iharder.sourceforge.net/xmlizable/api/net/iharder/xmlizable/PrimitiveContentsHandler.html   (596 words)      Bug ID: 4171142 Deserialization fails for Class object of primitive type The problem would be fixed if Class.forName recognized andquot;intandquot; (and the other primitive types) as a special case and returned the proper Class object. Why not change the java.io.ObjectStreamClass.class so that when the class descriptor is read, the jdk knows that it is a class object representing the primitive type and not call resolveObject. Deserialization fails for Class object of primitive type http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4171142   (781 words)      [No title] Since a type is, by definition, a set of values and the operations associated with it; we can say that type int is the set of all integer values, and the operations associated with it in programming (addition, subtraction, multiplication, division). Other primitive types in Java are: byte, short, int, long, float, double, boolean. Its called a "primitive" type because it is built into the language. http://instruct1.cit.cornell.edu/courses/apjava/mod2/glossary.html   (101 words)      The char Primitive Data Type Knowing the data type of a pattern is necessary to make sense of it. For example, here is a 16 bit pattern: If you know that these 16 bits are of data type http://www11.brinkster.com/secici/Notes/chap08/ch08_13.html   (237 words)      TYPE-SET.html -- ACL2 Version 2.9 The relevant actual primitive types, their bit positions and their encodings are: Generally we are interested in the smallest type-set a term has, but because the entire theorem-proving problem for ACL2 can be encoded as a type-set question, namely, ``Does to mean the finite set of primitive types, not the infinite set of all objects in all of those primitive types. http://www.cs.utexas.edu/users/moore/acl2/v2-9/TYPE-SET.html   (558 words)      [No title] Ÿ¨Primitive Data TypesŸ  ZStore simple data values (e.g. integers, reals, and booleans) in main memory; examples: integers:& -2, -1, 0, +1, +2, +3, & reals: & -2.12, -2.101, -1.999, 0.0, +1.5, +2.2789, & booleans: true, false (i.e. logical values) The other kind of data types deal with objects (called reference data types)¡ http://www.csd.uwo.ca/courses/CS026a/notes/cs026_4.ppt   (1442 words)      1.3.1 Primitive Types For more information on the primitive container classes, read the A program should never contain explicit references to any of the specific integer constants given above. type is rarely used in Java programs because a flexible http://www.cs.rice.edu/~cork/book/node17.html   (157 words)      primitive type concept from the Java knowledge base has definition A type where a variable of that type evaluates to the value stored in the variable is a subtopic of Variables and Data Types primitive type concept from the Java knowledge base http://www.site.uottawa.ca:4321/java/primitivetype.html   (94 words)      primNode class Reference This is used by the static equal_to() method to perform general deep type comparison. This class represents a primitive type and is really just an AST node container for a basic_type. The new type has the given type qualifiers and the default basic type of int. http://www.cs.utexas.edu/users/c-breeze/html-July-28/classprimNode.html   (420 words)      jGuru: What are all of the different kinds of type casting in Java and what do they mean? references to any class, interface, or array type. A widening reference conversion is the conversion of a reference to a given type to a reference of another type which is less restrictive and type compatible. Given that the smaller type cannot represent all of the possible values of the larger type, narrowing primitive conversions may lose information. http://www.jguru.com/faq/view.jsp?EID=288267   (790 words)      Inference Web's Proof Markup Language (PML) Description This property supports the application of rules requiring the discharging of assumptions such as natural deduction's implication introduction. A PrimitiveRule is a type of an InferenceRule that is implemented by one or more inference engines. Thus, PML concepts can be considered to be either proof level concepts or provenance level concepts. http://iw.stanford.edu/pmldescription.html   (2088 words)      [No title] ; end; Question: How are enumerated types represented by the language? In Pascal and C they are represented as integral values (e.g., Mon = 1, Tues = 2, etc.) So does that mean we can perform all operations on enumerated types that are legal for integers?¡¢)Zm ZùZ)RC  C C wC C iª,0  9 ó  Ÿ¨Enumerated TypesŸ  ~In Pascal you can t (strongly typed) But in C, you can do something like this: #include Name equivalence does not permit this: the types of Counts1 and Counts2 are unnamed Structural equivalence does permit this, since the types are constructed identically Pascal does not permit it¡°6 0 Z© 0  Z 0 Z"       4    b ªø ¦øØÔ Ððð ¢ ð´ ƒð0€Ð‰m ¿ ƒ ¿ À ÿ  ð` 𩟨Qvar Counts1: array['a'..'z'] of Integer; Counts2: array['a'..'z'] of Integer;¡"R 2R e ÿÿþª LðH ð ´ ƒð0 ƒ “ ŽŸ‹” Þ½h¿ ÿ  ? ð ÿÿÿ€€€Ì™33ÌÌÌÿ²²²r´  8ƒ¼¨‘”“¶›Œ•š—¨™® ¦Ÿž¡—£Ž¥†§~©v«±ˆ·t¹l»d½\¿TÁLÃDÅ http://www.cs.usm.maine.edu/~pfiorini/Types03.ppt   (152 words)      Primitive Collections for Java Joshua Bloch provided the basic interface design of the Java Collections Framework on which PCJ is based. GNU Trove High performance collections for Java Objects and primitive types. (PCJ) is a set of collection classes for primitive data types in Java. http://pcj.sourceforge.net   (491 words)      Brain.Save() This attribute was applied to a type (Foo) defined in a partially trusted assembly. Wilco had some good thoughts about mangled names (having both MyAttribute and MyAttributeAttribute defined in a project) as well as type forwarding...both of which were very reasonable explanations but not quite what I was getting at. The net effect is that custom attribute constructors always run in the security context of the type to which they were applied. http://hyperthink.net/blog/CommentView.aspx?guid=8fcad4ad-4f71-48a9-8678-9...   (3005 words)      Z-World, Inc. / Rabbit Semiconductor Tech Bulletin Board: Long primitive type So the string specifies the number of parameters AND the type. If I wanted a 16 bit type, then I would have explicitly declared my variable as an int and not as a long. Either you specify EXACTLY the parameters passed to a function and the compiler will verify the correct types are passed (or convert to the right type if possible.) Or, you can have variable aruments, but lose type checking. http://www.zworld.com/support/bb/messages/14/3598.html?1099284925   (691 words)      The Carolina Dog Association - News Clippings In the course of a program to trap and study the Savannah River Site’s native forbearer populations, dogs of the LTPM type were occasionally encountered. This work provides an opportunity for a number of interested persons to become involved in assisting in the collection of behavioral observations of these dogs as they adapt to the variety of forms of life styles to which domestic dogs may be exposed in this country. The general absence (until recently) of the coyote from this region further suggests a possible additional factor contributing to the ability of dogs of this type to retain basic LTPM characteristics in this area. http://www.carolinadogs.org/news/wildcanid.html   (2338 words)      Primitive Type Literals is not a primitive data types but it does have literal values, e.g., It is used to denote an undefined reference to an object or class instance (to be discussed later). type allows for a wider range of values (see chart) and http://www.csc.calpoly.edu/~csc101/Studynotes/PrimitiveTypeLiterals.htm   (293 words)      Sundance Spanish Horses. Barb, Spanish Barb, Spanish Sulphur. Getting to know the Barb With the information I collected, I wrote a paper about the Sulphur horses for the BLM and SMR, which was included in the SMR’s 1996 Annual. He said, often, that they are smarter than other horses. One statement of importance that he made was: "Since the Spanish Feral horses are the only feral horses of truly unique and irreplaceable genotypes, they should be managed a genetic resource in addition to other BLM requirements.', http://www.sulphurs.com/Ron.htm   (9638 words)

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