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authorCameron Katri <me@cameronkatri.com>2021-05-09 14:20:58 -0400
committerCameron Katri <me@cameronkatri.com>2021-05-09 14:20:58 -0400
commit5fd83771641d15c418f747bd343ba6738d3875f7 (patch)
tree5abf0f78f680d9837dbd93d4d4c3933bb7509599 /shell_cmds/sh/tests/expansion/arith11.0
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Diffstat (limited to 'shell_cmds/sh/tests/expansion/arith11.0')
-rw-r--r--shell_cmds/sh/tests/expansion/arith11.012
1 files changed, 12 insertions, 0 deletions
diff --git a/shell_cmds/sh/tests/expansion/arith11.0 b/shell_cmds/sh/tests/expansion/arith11.0
new file mode 100644
index 0000000..4a33831
--- /dev/null
+++ b/shell_cmds/sh/tests/expansion/arith11.0
@@ -0,0 +1,12 @@
+# $FreeBSD: head/bin/sh/tests/expansion/arith11.0 218626 2011-02-12 23:44:05Z jilles $
+# Try to divide the smallest integer by -1.
+# On amd64 this causes SIGFPE, so make sure the shell checks.
+
+# Calculate the minimum possible value, assuming two's complement and
+# a certain interpretation of overflow when shifting left.
+minint=1
+while [ $((minint <<= 1)) -gt 0 ]; do
+ :
+done
+v=$( eval ': $((minint / -1))' 2>&1 >/dev/null)
+[ $? -ne 0 ] && [ -n "$v" ]