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coreutils/tests/misc/seq-long-double
Pádraig Brady 99be907838 tests: refactor to use the new getlimits utility
* tests/Coreutils.pm: Add function to make limits available
* tests/test-lib.sh: ditto
* tests/misc/join: Check for both SIZE_OFLOW and UINTMAX_OFLOW
rather than using arbitrary 2^128
* tests/misc/sort: ditto
* tests/misc/uniq: ditto
* tests/misc/printf: Check for both INT_OFLOW and INT_UFLOW
rather than using arbitrary -2^31
* tests/misc/seq-long-double: Check for INTMAX_OFLOW
rather than using arbitrary 2^63
* tests/misc/split-fail: Check --lines --bytes and --line-bytes
options limits on all platforms. Note getlimits obviates the
need to use expr to check if 32 bit integers are supported,
which I think was invalid anyway as expr now supports bignum?
* tests/misc/test: Check for UINTMAX_OFLOW rather than
using arbitrary 2^64 and 2^128. Check for INTMAX_UFLOW
rather than using arbitrary -2^64
* tests/misc/timeout-parameters: Check for UINT_OFLOW
rather than using arbitrary 2^32
* tests/misc/truncate-overflow: Don't depend on truncate
to determine if we're on a 32 or 64 bit platform and
instead use the various OFF_T limits
* tests/misc/sort-merge: Check for UINTMAX_OFLOW
rather than using arbitrary 2^64+1
* tests/misc/unexpand: ditto
2009-01-03 15:10:42 +00:00

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#!/bin/sh
# Test for this fix: 461231f022bdb3ee392622d31dc475034adceeb2.
# Ensure that seq prints exactly two numbers for a 2-number integral
# range at the limit of floating point precision.
# Copyright (C) 2008 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/>.
if test "$VERBOSE" = yes; then
set -x
seq --version
fi
. $srcdir/test-lib.sh
getlimits_
# Run this test only with glibc and sizeof (long double) > sizeof (double).
# Otherwise, there are known failures:
# http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/14939/focus=14944
cat <<\EOF > long.c
#include <features.h>
#if defined __GNU_LIBRARY__ && __GLIBC__ >= 2
int foo[sizeof (long double) - sizeof (double) - 1];
#else
"run this test only with glibc"
#endif
EOF
$CC -c long.c \
|| skip_test_ \
'this test runs only on systems with glibc and long double != double'
a=$INTMAX_MAX
b=$INTMAX_OFLOW
fail=0
seq $a $b > out || fail=1
printf "$a\n$b\n" > exp || fail=1
compare out exp || fail=1
Exit $fail