bar

Part of the TechTarget Network of Enterprise IT Web Sites
Home Look It Up ITKnowledge Exchange Fast References Products White Papers Blogs

Search our IT-specific encyclopedia for:
 
OR Jump to a topic:
 
Advanced Search
Browse alphabetically:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #
All Categories Programming

bar

In programming, bar is a metasyntactic variable that is used to temporarily represent a function . Other examples include (but are by no means limited to) ack, baz, blarg, wibble, foo , fum, and qux. Metasyntactic variables are sometimes used in developing a conceptual version of a program or examples of programming code written for illustrative purposes.

Any filename beginning with a metasyntactic variable denotes a scratch file. This means the file can be deleted at any time without affecting the program.

When two or more metasyntactic variables are needed, bar is often paired with foo as a result of the fact that foo is phonetically the first part of the otherwise unrelated acronym, FUBAR . In other words, foo (which has its own history; see Smokey Stover) gave rise to the later use of bar as a metasyntactic variable because of its phonetic association with the well-known acronym.

Sometimes the terms Base Address Register and Buffer Address Register are shortened to the acronym bar or BAR.

In physics, the bar is a unit of pressure equal to one million (10 6 ) dynes, equivalent to 10 newtons, per square centimeter. This is approximately the pressure exerted by Earth's atmosphere at sea level.

The word bar, in English, has numerous plain-usage definitions that can be found in any dictionary.

Also see foo and FUBAR .













Read more about it at:
> The IETF's RFC 3092, "Etymology of Foo," also mentions bar.
This word suggested by: Alison Gudgeon
Last updated on: Sep 21, 2005

Are you a Know-IT-All?
What do you call the nucleus of a computer operating system?
Answer


WORD OF THE DAY...
iTunes U
LEARN MORE ABOUT...
Web 2.0 applications for the enterprise
Most popular and handy
Every TechTarget website
WhatIs.com RSS Feeds
Home Look It Up ITKnowledge Exchange Fast References Products White Papers Blogs
About Us   |   Contact Us   |   For Advertisers   |   For Business Partners   |   Reprints   |   RSS   |   Awards
TechTarget provides enterprise IT professionals with the information they need to perform their jobs - from developing strategy, to making cost-effective IT purchase decisions and managing their organizations' IT projects - with its network of technology-specific Web sites, events and magazines.

TechTarget Corporate Web Site  |  Media Kits  |  Reprints  |  Site Map




All Rights Reserved, Copyright 2008, TechTarget | Read our Privacy Policy
  TechTarget - The IT Media ROI Experts