This essentially comes down to the commutative property of pointer arithmetic. This was also used in David Korn‘s (creator of the Korn shell) 1987 IOCCC entry:

This essentially comes down to the commutative property of pointer arithmetic. This was also used in David Korn‘s (creator of the Korn shell) 1987 IOCCC entry: https://www.ioccc.org/1987/korn/korn.c https://www.ioccc.org/1987/korn/korn.c