1218626Sjilles# $FreeBSD: releng/11.0/bin/sh/tests/expansion/arith11.0 218626 2011-02-12 23:44:05Z jilles $
2218626Sjilles# Try to divide the smallest integer by -1.
3218626Sjilles# On amd64 this causes SIGFPE, so make sure the shell checks.
4218626Sjilles
5218626Sjilles# Calculate the minimum possible value, assuming two's complement and
6218626Sjilles# a certain interpretation of overflow when shifting left.
7218626Sjillesminint=1
8218626Sjilleswhile [ $((minint <<= 1)) -gt 0 ]; do
9218626Sjilles	:
10218626Sjillesdone
11218626Sjillesv=$( eval ': $((minint / -1))' 2>&1 >/dev/null)
12218626Sjilles[ $? -ne 0 ] && [ -n "$v" ]
13