An "infinite loop" is a loop in which the exit criteria are never satisfied; such a loop would perform a potentially infinite number of iterations of the loop body. The general problem of determining whether the execution of a loop with given preconditions will result in an infinite loop is undecidable; in other words, there is no algorithm to determine whether an execution of a loop will eventually terminate. This is known as the halting problem.
Questions tagged [infinite-loop]
3528 questions
11
votes
2 answers
Updating state to the same value directly in the component body during render causes infinite loop
Let's say I have this simple dummy component:
const Component = () => {
const [state, setState] = useState(1);
setState(1);
return
Component
}
In this code, I update the state to the same value as before directly in the…
Tehila
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11
votes
3 answers
Usability of infinite loop in Rust
Rust contains loop, which is specially designed for infinite looping:
Using the keyword loop, Rust provides a way to loop indefinitely until
some terminating statement is reached (like program exit)
I can't think of a single scenario when I…
Fusion
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11
votes
3 answers
Spring Boot - infinite loop service
I want to build a headless application which will query the DB in infinite loop and perform some operations in certain conditions (e.g. fetch records with specific values and when found launch e-mail sending procedure for each message).
I want to…
Pawel Urban
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votes
5 answers
Validate the type of input in a do-while loop
Basically, I need to ensure that input is an integer, like so:
do {
printf("Enter > ");
scanf("%d", &integer);
} while (/* user entered a char instead of an int */);
I have tried various methods, but it always end up with run-time error or…
Juen Khaw
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11
votes
1 answer
Laravel 5 redirect loop error
I trying to make a login and admin script, the problem is that I have a redirect loop I dont know why.
I want the login users and can be in the / path not /home.
If change return new RedirectResponse(url('/')); to return new…
user4012084
11
votes
4 answers
why does an infinite loop of the unintended kind increase the CPU use?
I know an infinite loop to the unintended kind usually causes a high CPU usage. But, I don't quite understand why. Can anyone explain that to me?
user342673
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votes
5 answers
How for( ; ;) is infinite loop?
Like many other question explained that while(true) {} is an infinite loop and so is for( ; ;) my question is while(true) makes sense the conditions is always true but there is no vivid condition true/false in for( ; ;) so how is the later an…
user2009750
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11
votes
2 answers
angularjs infinite $digest Loop when no scope changes
I'm getting the below error in my angular code. I'm struggling to understand why the function getDrawWithResults would cause a digest cycle as there don't seem to be any side effects? It just returns items from a list that have a property set to…
foiseworth
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11
votes
1 answer
Custom layout UITableViewHeaderFooterView
So I just tried subclassing UITableViewHeaderFooterView and aligning the labels the way I want by overriding -layoutSubviews.
When I call super and change a label's frame, however, the app appears to be stuck in an infinite -layoutSubviews loop.
My…
Christian Schnorr
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11
votes
5 answers
Chess: Getting All Legal Chess Moves
I am making the game chess, and have gotten virtually everything but one thing: I need to make it so that it is impossible for a player to move a piece into check. I am having trouble on how to tackle this problem.
What I have right now in…
Mike
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votes
1 answer
What could cause an Android activity to relaunch itself infinitely when returning from camera?
I have a weird bug in my application that causes an activity to relaunch itself in an infinite loop when I'm returning from a camera application, after taking a picture.
The UI flow is like this:
Main Activity ->
Accept Photo activity -> in…
Corneliu Dascălu
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10
votes
4 answers
C exit from infinite loop on keypress
How can I exit from an infinite loop, when a key is pressed?
Currently I'm using getch, but it will start blocking my loop as soon, as there is no more input to read.
user196106
10
votes
5 answers
When running user inputed Javascript, is there a way to detect and stop "problem" scripts?
On a page, something like jsFiddle, that executes user inputed Javascript, is there a way to stop / disrupt "problem" scripts running in an iframe?
The major class of problem scripts would be infinite loops, I think. Browsers deal with multiple…
Peter Ajtai
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10
votes
2 answers
how to handle code that never executes
I have some code that looks like this and I'm unsure how to handle the part which will never get executed since a part of this code runs in infinite loop while waiting for connections and when I terminate the program, it exits from there…
Abhinav Gauniyal
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votes
7 answers
Strange "for(;;)" infinite loop in Java, how is this useful?
Though I have some experience in Java, the following code looks a bit strange to me:
public class ForLoopTest{
public static void main(String[] args){
for(;;){}
}
}
This code compiles fine, although the initialization-test-increment…
Razib
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