dwitter.net | #fuzzing

+ New dweet
function u(t) {
} //
122/140


Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


u(t) is called 60 times per second. t: Elapsed time in seconds. S: Shorthand for Math.sin. C: Shorthand for Math.cos. T: Shorthand for Math.tan. R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5) c: A 1920x1080 canvas. x: A 2D context for that canvas.
Theme challenge of the month: #symmetry
show FPS hide FPS share fullscreen

function u(t) {

}//
140/140


Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

  • four fours puzzle calculator (+ bitwise operators) #throw t||(z=''),s="/*4+-%^&~";g=q=>{w='';while(w.split4.length<5)w+=s[(Math.random()*9)|0];return w};for(i=99;i--;){try{t=${r=eval(q=g())} = ${q};r[0];z+=t+'\n'}catch{}}throw z
  • u/tomxor
    Wow nice! it's so fast.
  • u/tomxor
    Hah, A lot of variations with comments appended, I found when doing this kinda #fuzzing it can be useful to padd the operators with spaces, you like a few things like power and decrement/increment but also protect loop variables from assignment and stop comments.

Please log in (or register) to comment.

show FPS hide FPS share 1 remix fullscreen

function u(t) {

}//
139/140


Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

  • Show more comments…
  • u/tomxor
    I should clarify: to by pruning I mean not mearly skipping evaluation of individual permutations but to be able to skip entire subtrees of permutations by detecting equivalence at the root of that subtree.
  • u/joeytwiddle
    Pruning does sound sensible, but I'm not sure how to approach it.
  • u/joeytwiddle
    I am also having difficultly with >3 non-trivial outputs. I think the search space is too large. But at least I found some simplifications, such as: [1,3,5,7] => X-~X
  • u/tomxor
    Finally got it to solve a non linear one: D=[2,3,6,11,18,27] (2+X*X), just need a bit more patience

Please log in (or register) to comment.

show FPS hide FPS share 1 remix fullscreen

function u(t) {

}//
135/140


Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

  • Expression miner: Finds an E length L that generates D #waitforit

Please log in (or register) to comment.

show FPS hide FPS share fullscreen
remix of d/12492 by u/tomxor

function u(t) {

}//
140/140


Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

  • Show more comments…
  • u/DataMeta
    Haha, Xen
  • u/tomxor
    Nice analogy :) like a TV into the computable universe, infinite channel! (sorta)
  • u/21medals
    Why the space in between each character of E?
  • u/tomxor
    Because -- and ++ are assignment operators, and I cannot allow those on loops variables X and Y. It's basically cheaper in chars to pad with spaces than test for this with a regex.

Please log in (or register) to comment.

show FPS hide FPS share 1 remix fullscreen

function u(t) {

}//
140/140


Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Please log in (or register) to comment.

show FPS hide FPS share 1 remix fullscreen

function u(t) {

}//
129/140


Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

  • 60 monkeys per second

Please log in (or register) to comment.

You've reached the end.