4 // Tests the Collatz conjecture with an incorrect base case (0 instead of 1).
5 // The value of `n` will loop indefinitely (4 - 2 - 1 - 4).
7 //~^ WARNING Constant evaluating a complex constant, this might take some time
8 let mut n = 113383; // #20 in https://oeis.org/A006884
9 while n != 0 { //~ ERROR constant contains unimplemented expression type
10 n = if n % 2 == 0 { n/2 } else { 3*n + 1 };
11 //~^ ERROR evaluation of constant value failed