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#!/bin/sh
# These would fail (i.e., match erroneously) prior to grep-2.11.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
xp1=4294967297 # 2^32+1
xp2=4294967298 # 2^32+2
fail=0
# Before grep-2.11, when DFA-matching, a repetition count exceeding the
# range of "unsigned int" would silently wrap around. Hence, 2^32+1
# would be treated just like "1", and both of these would mistakenly match.
echo abc | grep -E "b{$xp1}" > out 2> /dev/null; test $? = 2 || fail=1
compare /dev/null out || fail=1
echo abbc | grep -E "b{1,$xp2}" > out 2> /dev/null; test $? = 2 || fail=1
compare /dev/null out || fail=1
Exit $fail
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