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#!/bin/sh
# Test for signed integer overflow bug within diff.
# Bug reported by Gisele Vanem <http://bugs.gnu.org/64316>.
# Compile with gcc -fsanitize=undefined to test for this bug.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
fail=0
for f in a b; do
printf 'c\nd\ne\nf\ng\n%s\nh\ni\nj\nk\nl\n' $f >$f || framework_failure_
done
cat >exp <<'EOF' || framework_failure_
@@ -3,7 +3,7 @@
e
f
g
-a
+b
h
i
j
EOF
returns_ 1 diff -u a b >out 2>err || fail=1
sed '1,2d' out >out1 || framework_failure_
compare exp out1 || fail=1
compare /dev/null err || fail=1
Exit $fail
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