1
0
mirror of git://git.sv.gnu.org/coreutils.git synced 2026-04-20 02:36:16 +02:00
Files
coreutils/tests/misc/head-c.sh
Jim Meyering aeaeb87c13 tests: head-c: avoid spurious failure with a 32-bit size_t
* tests/misc/head-c.sh: Don't try to elide 1 exabytes, since on
32-bit systems, that number is not representable as a size_t.
This command would fail on 32-bit systems, where SIZE_MAX < 1E:
  head --bytes=-E < /dev/null
Instead of "E", use $SSIZE_MAX.
For discussion, see http://bugs.gnu.org/13530
2013-06-01 20:44:47 -07:00

38 lines
1.2 KiB
Bash
Executable File

#!/bin/sh
# exercise head -c
# Copyright (C) 2001-2013 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ head
require_ulimit_v_
getlimits_
# exercise the fix of 2001-08-18, based on test case from Ian Bruce
echo abc > in || framework_failure_
(head -c1; head -c1) < in > out || fail=1
case "$(cat out)" in
ab) ;;
*) fail=1 ;;
esac
# Only allocate memory as needed.
# Coreutils <= 8.21 would allocate memory up front
# based on the value passed to -c
(ulimit -v 20000; head --bytes=-$SSIZE_MAX < /dev/null) || fail=1
Exit $fail