Looping Error
Contents |
Malone, see Infinite Loop (book). This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be infinite loop example challenged and removed. (May 2013) (Learn how and when to remove this template
Infinite Loop Apple
message) Loop constructs Do while loop While loop For loop Foreach loop Infinite loop Control flow An infinite loop
Infinite Loop C++
(or endless loop) is a sequence of instructions in a computer program which loops endlessly, either due to the loop having no terminating condition, having one that can never be met, or
Infinite Loop Java
one that causes the loop to start over. In older operating systems with cooperative multitasking, infinite loops normally caused the entire system to become unresponsive. With the now-prevalent preemptive multitasking model, infinite loops usually cause the program to consume all available processor time, but can usually be terminated by the user. Busy wait loops are also sometimes called "infinite loops". One possible cause of infinite while loop java a computer "freezing" is an infinite loop; others include thrashing, deadlock, and access violations. Contents 1 Intended vs unintended looping 1.1 Intentional looping 1.2 Unintentional looping 2 Interruption 3 Language support 4 Examples of intentional infinite loops 5 Examples of unintentional infinite loops 5.1 Mathematical errors 5.2 Variable handling errors 6 Multi-party loops 7 Pseudo-infinite loops 7.1 Impossible termination condition 7.2 Infinite recursion 7.3 Break statement 7.4 Alderson loop 8 See also 9 External links 10 References Intended vs unintended looping[edit] Looping is repeating a set of instructions until a specific condition is met. An infinite loop occurs when the condition will never be met, due to some inherent characteristic of the loop. Intentional looping[edit] There are a few situations when this is desired behavior. For example, the games on cartridge-based game consoles typically have no exit condition in their main loop, as there is no operating system for the program to exit to; the loop runs until the console is powered off. Modern interactive computers require that the computer constantly be monitoring for user input or device activity, so at some fundamental level there is an infinite processing idle
discrete equivalent of a boundary condition. It often occurs in computer programming when an iterative loop iterates one time too many or too few. This problem could arise when a programmer makes mistakes such as using write the code for an infinite loop "is less than or equal to" where "is less than" should have been used in how to stop infinite loop in c a comparison or fails to take into account that a sequence starts at zero rather than one (as with array indices in infinite loop synonym many languages). This can also occur in a mathematical context. Contents 1 Looping over arrays 2 Fencepost error 3 Security implications 4 See also 5 References Looping over arrays[edit] Consider an array of items, and items https://en.wikipedia.org/wiki/Infinite_loop m through n (inclusive) are to be processed. How many items are there? An intuitive answer may be n−m, but that is off by one, exhibiting a fencepost error; the correct answer is n–m+1. For this reason, ranges in computing are often represented by half-open intervals; the range from m to n (inclusive) is represented by the range from m (inclusive) to n+1 (exclusive) to avoid fencepost errors. For example, a loop https://en.wikipedia.org/wiki/Off-by-one_error that iterates five times (from 0 to 4 inclusive) can be written as a half-open interval from 0 to5: for (i = 0; i < 5; i++) { /* Body of the loop */ } The loop body is executed first of all with i equal to 0; i then becomes 1, 2, 3, and finally 4 on successive iterations. At that point, i becomes 5, so i < 5 is false and the loop ends. However, if the comparison used were <= (less than or equal to), the loop would be carried out six times: i takes the values 0, 1, 2, 3, 4, and 5. Likewise, if i were initialized to 1 rather than 0, there would only be four iterations: i takes the values 1, 2, 3, and 4. Both of these alternatives can cause off-by-one errors. Another such error can occur if a do-while loop is used in place of a while loop (or vice versa.) A do-while loop is guaranteed to run at least once. Array-related confusion may also result from differences in programming languages. Numbering from 0 is most common, but some languages start array numbering with 1. Pascal has arrays with user-defined indices. This makes it possible to model the array indices after the problem domain. Fencepost error[edit]
title. You can not post a blank message. Please type your message and try again. Enlightenment Level 1 (0 points) Q: Looping error message re Network Settings When trying to review Network in System Preferences a pop up error appears: https://discussions.apple.com/thread/5378183?tstart=0 "Your Network Settings have been changed by another application"This message is in a constant loop - the only way I can get rid of it is to force quit System Preferences.This started when trying to connect to a new "BT Home Hub" wireless router after years of problem free operation using the previous router (an older "BT Home Hub". Also I had been trying to "Create a network" connecting to infinite loop an iBook G4 with an ethernet cable.iBook Model M6497 (Powerbook 4,1) running OSX 10.4.11 with Airport firmware 9.5.2 iBook, Mac OS X (10.4.11), Airport card with Firmware 9.5.2 Posted on Sep 27, 2013 4:08 AM I have this question too Close Q: Looping error message re Network Settings All replies Helpful answers by BDAqua,★Helpful BDAqua Sep 27, 2013 12:06 PM in response to Enlightenment Level 10 (123,840 points) Sep infinite loop example 27, 2013 12:06 PM in response to Enlightenment Hello,That was a common annoyance years ago, due to a Security update.To stop the pop-up, Go to System Preferences: Security. Check the box next to "Require password to unlock each secure system preference." Then lock Security.Try this cure for Security update...http://discussions.apple.com/thread.jspa?threadID=1730909&tstart=0The locations are actually.../Library/Preferences/SystemConfiguration/preferences.plist/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist/Library/Preferences/SystemConfiguration/NetworkInterfaces.plist/Library/Preferences/SystemConfiguration/com.apple.nat.plistMake a New Location, Using network locations in Mac OS X ...http://support.apple.com/kb/HT2712 Helpful (1) Reply options Link to this post by Enlightenment, Enlightenment Sep 28, 2013 12:40 AM in response to BDAqua Level 1 (0 points) Sep 28, 2013 12:40 AM in response to BDAqua Thank you, this has stopped the looping and solved the problem. Sorry clicked on wrong option - you should get 10 points!Next hurdle is getting the Airport to connect. I am going to log another question in this forum about this. Helpful (0) Reply options Link to this post This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed so