1#!/bin/sh
2# make sure 'sum -s' works for input whose sum of bytes is larger than 2^32
3
4# Copyright (C) 2001-2023 Free Software Foundation, Inc.
5
6# This program is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16# You should have received a copy of the GNU General Public License
17# along with this program.  If not, see <https://www.gnu.org/licenses/>.
18
19# Avoid a problem when run in a UTF-8 locale.
20# Otherwise, Perl would try to (and fail to) interpret
21# each string below as a sequence of multi-byte characters.
22LC_ALL=C
23export LC_ALL
24
25. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
26print_ver_ sum
27
28require_perl_
29
30# FYI, 16843009 is floor (2^32 / 255).
31
32# aka: perl -e 'print chr(255) x 16843009'
33$PERL -e '$s = chr(255) x 65537; foreach (1..257) {print $s}' \
34  | sum -s > out || fail=1
35cat > exp <<\EOF
3665535 32897
37EOF
38compare exp out || fail=1
39
40rm -f out exp
41
42# aka: perl -e 'print chr(255) x 16843010'
43$PERL -e '$s = chr(255) x 65537; foreach (1..257) {print $s}; print chr(255)' \
44  | sum -s > out || fail=1
45cat > exp <<\EOF
46254 32897
47EOF
48compare exp out || fail=1
49
50Exit $fail
51