Isn't this answer wrong?

Question

int x=0;
while (x <5) {
x = x++;
}

this will cause an infinite loop.
but the quiz answer mentions this as finite loop.
How to get this corrected?

Answer 1

It is an infinite loop. The answer to the question is wrong

Answer 2

Ok follow Filip's answer xd

Answer 3

Every time I encounter this question, my conscience kills me.

Answer 4

x = x++ is similar to:
var tmp = x;
x++;
x = tmp;
So yeah, infinite loop...
Source: http://stackoverflow.com/a/226019

Answer 5

yes this is an infinite loop only but if u encounter this question in Java then the quiz answer would also be infinite loop only....I lost a match due to this , I thought in Java also they would have done wrong so I gave that it's not infinite and came to know that here the answer is the correct one only

Answer 6

Yeah I'm probably wrong because I don't know C++...

Answer 7

just run this code and see. x = x++ changes nothing about x

Answer 8

@steven Look at all the answers first, including mine. You might find your answer xD

Answer 9

No, it is finite.
First loop, x = 1
......
Fifth loop, x = 5
The while loop stops.

(This thing is wrong)

Answer 10

Why is it infinite? x = x++ uses the value of x and then increments it meaning that x now = 1 ... if this is in fact infinite, then i also need some clarification. seems like a valid loop to me??

Answer 11

@Jafca I have read the other posts but my logic keeps telling me this looks right. why is x++ not incrementing x? and if it is, then shouldnt this be finite?

EDIT

never mind, it just clicked... i can see it now.

Answer 12

It is infinite . because x++ is post increment ! x=x++ is not a useful function as it is equal to x=x (post increment meaning ) and everytime the loop exits , x value is retained before it goes into the loop again i.e it doesn't get incremented outside the loop !