On Thursday, 27 June 2013 at 18:37:26 UTC, Timon Gehr wrote:
On 06/26/2013 10:51 PM, Gary Willoughby wrote:
Just for a bit of fun, I saw this question posted on reddit
the other
day and wondered how *you* would solve this in D?
http://stackoverflow.com/questions/731832/interview-question-ffn-n
int f(int x){ return x?(x&1?x:-x)+(x>0?1:-1):0; }
unittest{
foreach(x;int.min..int.max)
assert(f(f(x))==-x);
}
That highly compound statement..... Why? Surely you would never
write anything like this either in production code (unless
absolutely necessary) or in an interview?
It's fine as a one-off, but a whole code-base full of this style
would be horrifying.
