Loop all pairs

Let's say I have this array:

{a, b, c, d, e}

How can I look through all the possible pairs?

a, b
a, c
a, d
a, e
b, c
b, d
b, e
c, d
c, e
d, e

Fictional language syntax please.

>>26
No dumb shit, I wanted to know whether or not OP was asking for combinations or permutations, because I didn't read his list of required outputs. However after reading the list it is obvious that he is looking for all combinations with two indices.

You seem to be confused. In a permutation order matters, in a combination order does not. Try and think before speaking you mental midget.