<< operator for arrays

[Liso]

@kristoffer.carlsson

f(x) = x << 3

What does this code do when you read it in a file? How would you document f ?

BTW f(a, b) = a * b could mean multiply (numbers, arrays) or concatenate (strings) or append (char to string) or combine (two chars to string) or logical and for booleans or …