From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001
From: Cameron Katri <me@cameronkatri.com>
Date: Sun, 9 May 2021 14:20:58 -0400
Subject: Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
---
 shell_cmds/sh/tests/expansion/arith14.0 | 40 +++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 shell_cmds/sh/tests/expansion/arith14.0

(limited to 'shell_cmds/sh/tests/expansion/arith14.0')

diff --git a/shell_cmds/sh/tests/expansion/arith14.0 b/shell_cmds/sh/tests/expansion/arith14.0
new file mode 100644
index 0000000..a51e916
--- /dev/null
+++ b/shell_cmds/sh/tests/expansion/arith14.0
@@ -0,0 +1,40 @@
+# $FreeBSD: head/bin/sh/tests/expansion/arith14.0 270029 2014-08-15 22:36:41Z jilles $
+# Check that <</>> use the low bits of the shift count.
+
+if [ $((1<<16<<16)) = 0 ]; then
+	width=32
+elif [ $((1<<32<<32)) = 0 ]; then
+	width=64
+elif [ $((1<<64<<64)) = 0 ]; then
+	width=128
+elif [ $((1<<64>>64)) = 1 ]; then
+	# Integers are wider than 128 bits; assume arbitrary precision.
+	# Nothing to test here.
+	exit 0
+else
+	echo "Cannot determine integer width"
+	exit 2
+fi
+
+twowidth=$((width * 2))
+j=43 k=$((1 << (width - 2))) r=0
+
+i=0
+while [ $i -lt $twowidth ]; do
+	if [ "$((j << i))" != "$((j << (i + width)))" ]; then
+		echo "Problem with $j << $i"
+		r=2
+	fi
+	i=$((i + 1))
+done
+
+i=0
+while [ $i -lt $twowidth ]; do
+	if [ "$((k >> i))" != "$((k >> (i + width)))" ]; then
+		echo "Problem with $k >> $i"
+		r=2
+	fi
+	i=$((i + 1))
+done
+
+exit $r
-- 
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