HN user
I think you are on the right track of where I am getting... Before running through all the code, x = .9999999, but at the end of all the operations, x = 1, so; if placed in a "for loop", with a condition outside of the loop, its possible that the compiler would return "false" for x = x.
X could be .999... .9 repeating is a numerical number that technically does not equal itself, although I'm sure most compilers would round the number to 1; so I'm not sure if it's what your looking for. But as for a boolean, or an integer that would fit that solution, I cant think of any time that it could occur.
x = .999... 10x = 9.999... 10x-x = 9.999... - .999... 9x = 9 x = 1 .999... != 1