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#! /bin/sh
# grep -P / grep -Pc are inconsistent results
# This bug affected grep versions 2.21 through 2.22.
#
# Copyright (C) 2015-2023 Free Software Foundation, Inc.
#
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
require_pcre_
fail=0
printf 'a\n%032768d\nb\0\n%032768d\na\n' 0 0 > in || framework_failure_
# grep will discover that the input is a binary file sooner if the
# page size is larger, so allow for either possible output.
printf 'a\n' >exp1a || framework_failure_
LC_ALL=C grep -P 'a' in >out || fail=1
compare exp1a out || compare /dev/null out || fail=1
printf '2\n' >exp2 || framework_failure_
LC_ALL=C grep -Pc 'a' in >out || fail=1
compare exp2 out || fail=1
Exit $fail
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