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authorPaul Eggert <eggert@cs.ucla.edu>2010-11-18 09:50:49 -0800
committerPaul Eggert <eggert@cs.ucla.edu>2010-11-18 09:51:04 -0800
commita71c22fdf0bae4a4d89327a78ab168b53a9d020f (patch)
treeda51160fd14eba21bc2b6fa3c44ce175636de75c /tests/misc
parentcf90729e09572fa575ce7e1ee5a3cb3f513d2efb (diff)
downloadcoreutils-a71c22fdf0bae4a4d89327a78ab168b53a9d020f.tar.xz
od: fix bugs in displaying floating-point values
* NEWS: Describe patch. * bootstrap.conf (gnulib_modules): Add ftoastr. * src/od.c: Include ftoastr.h, not float.h. (FLT_DIG, DBL_DIG): Remove. No need to verify LDBL_DIG. (FMT_BYTES_ALLOCATED): No need to worry about floating point now, since this format is no longer used for floating point. (PRINT_FIELDS): New macro, with most of the guts of the old PRINT_TYPE. (PRINT_TYPE): Rewrite to use PRINT_FIELDS. (PRINT_FLOATTYPE): New macro. This uses the new functions from ftoastr. (print_float, print_double, print_long_double): Reimplement using PRINT_FLOATTYPE. (decode_one_format): Calculate field widths based on ftoastr-supplied macros. * tests/Makefile.am (TESTS): Add misc/od-float. * tests/misc/od-float: New file.
Diffstat (limited to 'tests/misc')
-rwxr-xr-xtests/misc/od-float58
1 files changed, 58 insertions, 0 deletions
diff --git a/tests/misc/od-float b/tests/misc/od-float
new file mode 100755
index 000000000..fb9fb428d
--- /dev/null
+++ b/tests/misc/od-float
@@ -0,0 +1,58 @@
+#!/bin/sh
+# Test od on floating-point values.
+
+# Copyright (C) 2010 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=.}/init.sh"; path_prepend_ ../src
+print_ver_ od
+
+export LC_ALL=C
+
+# Test for a bug in coreutils up through 8.7: od was losing
+# information when asked to parse floating-point values. The numeric
+# tests are valid only on Intel-like hosts, but that should be good
+# enough to detect regressions, as they are designed to succeed on
+# non-Intel-like hosts. Also, test for another bug in coreutils 8.7
+# on x86: sometimes there was no space between the columns.
+
+set x $(echo aaaabaaa | tr ab '\376\377' | od -t fF) ||
+ framework_failure
+case "$*" in
+*0-*) fail=1;;
+esac
+case $3,$4 in
+-1.694740e+38,-1.694740e+38) fail=1;;
+esac
+
+set x $(echo aaaaaaaabaaaaaaa | tr ab '\376\377' | od -t fD) ||
+ framework_failure
+case "$*" in
+*0-*) fail=1;;
+esac
+case $3,$4 in
+-5.314010372517808e+303,-5.314010372517808e+303) fail=1;;
+esac
+
+set x $(echo aaaaaaaaaaaaaaaabaaaaaaaaaaaaaaa | tr ab '\376\377' | od -t fL) ||
+ framework_failure
+case "$*" in
+*0-*) fail=1;;
+esac
+case $3,$4 in
+-1.023442870282055988e+4855,-1.023442870282055988e+4855) fail=1;;
+esac
+
+Exit $fail