sh/tests/expansion/arith13.0

   1 # $FreeBSD: head/bin/sh/tests/expansion/arith13.0 254806 2013-08-24 20:06:00Z jilles $
   2 # Pre-increment and pre-decrement in arithmetic expansion are not in POSIX.
   3 # Require either an error or a correct implementation.
   4
   5 ! (eval 'x=4; [ $((++x)) != 5 ] || [ $x != 5 ]') 2>/dev/null &&
   6 ! (eval 'x=2; [ $((--x)) != 1 ] || [ $x != 1 ]') 2>/dev/null