1#!/bin/sh
2# Test od on floating-point values.
3
4# Copyright (C) 2010-2023 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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ od
21
22export LC_ALL=C
23
24# Test for a bug in coreutils up through 8.7: od was losing
25# information when asked to parse floating-point values.  The numeric
26# tests are valid only on Intel-like hosts, but that should be good
27# enough to detect regressions, as they are designed to succeed on
28# non-Intel-like hosts.  Also, test for another bug in coreutils 8.7
29# on x86: sometimes there was no space between the columns.
30
31set x $(echo aaaabaaa | tr ab '\376\377' | od -t fF) ||
32  fail=1
33case "$*" in
34*0-*) fail=1;;
35esac
36case $3,$4 in
37-1.694740e+38,-1.694740e+38) fail=1;;
38esac
39
40set x $(echo aaaaaaaabaaaaaaa | tr ab '\376\377' | od -t fD) ||
41  fail=1
42case "$*" in
43*0-*) fail=1;;
44esac
45case $3,$4 in
46-5.314010372517808e+303,-5.314010372517808e+303) fail=1;;
47esac
48
49set x $(echo aaaaaaaaaaaaaaaabaaaaaaaaaaaaaaa | tr ab '\376\377' | od -t fL) ||
50  fail=1
51case "$*" in
52*0-*) fail=1;;
53esac
54case $3,$4 in
55-1.023442870282055988e+4855,-1.023442870282055988e+4855) fail=1;;
56esac
57
58# Ensure od doesn't crash as it did on glibc <= 2.5:
59# https://sourceware.org/bugzilla/show_bug.cgi?id=4586
60set x $(printf 00000000ff000000 | tr 0f '\000\377' | od -t fL) || fail=1
61# With coreutils <= 8.7 we used to print "nan" for the above invalid value.
62# However since v8.7-22-ga71c22f we deferred to the system printf routines
63# through the use of the ftoastr module.  So the following check would only
64# be valid on x86_64 if we again handle the conversion internally or
65# if this glibc bug is resolved:
66# https://sourceware.org/bugzilla/show_bug.cgi?id=17661
67#case "$*" in
68#*nan*) ;;
69#*) fail=1;;
70#esac
71
72Exit $fail
73