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authorJim Meyering <meyering@redhat.com>2008-10-25 11:34:14 +0200
committerJim Meyering <meyering@redhat.com>2008-10-26 10:45:34 +0100
commitb4ec994b26662f890da855c8a1914aff4d2d3faa (patch)
treefe9cdfb4ce1417151b838cf52ee140fdb3447cba /tests/misc
parent2bf151cd937dd44f00bc7249d5d8d95e9a34f207 (diff)
downloadcoreutils-b4ec994b26662f890da855c8a1914aff4d2d3faa.tar.xz
tests: seq: check for today's extended long double fix
* tests/misc/seq-long-double: New file. Test for today's bug fix. * tests/check.mk (TESTS_ENVIRONMENT): Export CC definition. * tests/Makefile.am (TESTS): Add misc/seq-long-double. * NEWS (Bug fixes): Mention it.
Diffstat (limited to 'tests/misc')
-rwxr-xr-xtests/misc/seq-long-double51
1 files changed, 51 insertions, 0 deletions
diff --git a/tests/misc/seq-long-double b/tests/misc/seq-long-double
new file mode 100755
index 000000000..6b86ae301
--- /dev/null
+++ b/tests/misc/seq-long-double
@@ -0,0 +1,51 @@
+#!/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
+
+. $srcdir/test-lib.sh
+
+# Run this test only with glibc and sizeof (long double) > sizeof (double).
+# Otherwise, there are known failures:
+# http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/14939/focus=14944
+cat <<\EOF > long.c
+#include <features.h>
+#if defined __GNU_LIBRARY__ && __GLIBC__ >= 2
+int foo[sizeof (long double) - sizeof (double) - 1];
+#else
+"run this test only with glibc"
+#endif
+EOF
+$CC -c long.c \
+ || skip_test_ \
+ 'this test runs only on systems with glibc and long double != double'
+
+a=9223372036854775807
+b=$(echo $a|sed 's/7$/8/')
+
+fail=0
+seq $a $b > out || fail=1
+printf "$a\n$b\n" > exp || fail=1
+compare out exp || fail=1
+
+Exit $fail