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In computer science, a pointer is a programming language datatype whose value refers directly to ("points to") another value stored elsewhere in the computer memory using its address. Obtaining the value that a pointer refers to is called dereferencing the pointer. A pointer is a simple implementation of the general reference datatype (although it is quite different from the facility referred to as a reference in C++).

Pointers are so commonly used as references that sometimes people use the word "pointer" to refer to references in general; however, more properly it only applies to data structures whose interface explicitly allows it to be manipulated as a memory address. If you are seeking general information on a small piece of data used to find an object, see reference (computer science).

Architectural roots


Pointers are a very thin abstraction on top of the addressing capabilities provided by most modern architectures. In the simplest scheme, an address, or a numeric index, is assigned to each unit of memory in the system, where the unit is typically either a byte or a word, effectively transforming all of memory into a very large array. Then, if we have an address, the system provides an operation to retrieve the value stored in the memory unit at that address. Pointers are datatypes which hold addresses. See reference (computer science).

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@RealityTVBuzzz wut is the sign is it the pinky and the pointer finger supposedly known as the "devil horns" cause my momz was telling mii
princericosuave (jared buchanan) Mon, 23 Nov 2009 05:42:00 -0000
@RealityTVBuzzz wut is the sign is it the pinky and the pointer finger supposedly known as the "devil horns" cause my momz was telling mii
@baojie Any pointer to the RPI plan?
shangz (Zhenning Shangguan) Mon, 23 Nov 2009 05:38:26 -0000
@baojie Any pointer to the RPI plan?
SAVE $31.04 - 30mW Green Laser Pointer w/ Silver Body $19.95 http://dealnay.com/166260 #presentation_pointer #deal
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SAVE $31.04 - 30mW Green Laser Pointer w/ Silver Body $19.95 http://dealnay.com/166260 #presentation_pointer #deal
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e_bargains (Electronic Deals) Mon, 23 Nov 2009 05:30:16 -0000
SAVE $9.75 - Wireless Presenter with Laser Pointer $30.24 http://dealnay.com/115500 #projector #sale #ad
Hey, Rhianna stole Bono's laser-pointer jacket! & someone's roll of white duct tape... #amas
amylemonade (Amy Bradlow) Mon, 23 Nov 2009 05:21:05 -0000
Hey, Rhianna stole Bono's laser-pointer jacket! & someone's roll of white duct tape... #amas
Cam Long's three-pointer lifts George Mason past Indiana http://bit.ly/85UcB3
schoolbuddy (vijay) Mon, 23 Nov 2009 05:18:57 -0000
Cam Long's three-pointer lifts George Mason past Indiana http://bit.ly/85UcB3

 
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American Kennel Club - Pointers - The American Kennel Club (AKC) home to American dog breeds as well as a detailed Pointer standard and much more.
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Australian National Kennel Council - ANKC standard for the breed.

Positively Pointers Mail List - A discussion mail list for people interested in the Pointer breed (referred to as English Pointer by some).

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