0d119bab38
Our dc(1) has never correctly calculated remainders with fractional inputs. Both bmod and bdivmod seem to have copy/pasted code from bdiv, which results in the remainder having the wrong output scale. PR: 162495 Reported by: anonymous Reviewed by: pfg Differential Revision: https://reviews.freebsd.org/D13390
103 lines
2.6 KiB
Bash
Executable File
103 lines
2.6 KiB
Bash
Executable File
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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#
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# Copyright (c) 2017 Alan Somers
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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atf_test_case base16_input
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base16_input_head()
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{
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atf_set "descr" "Input hexadecimal numbers"
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}
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base16_input_body()
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{
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cat > input.dc << EOF
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4k # set scale to 4 decimal places
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16i # switch to base 16
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0 p
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10 p
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1 p
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1. p # The '.' should have no effect
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1.0 p # Unlike with decimal, should not change the result's scale
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.8 p # Can input fractions
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# Check that we can input fractions that need more scale in base 10 than in 16
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# See PR 206230
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.1 p
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.10 p # Result should be .0625, with scale=4
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.01 p # Result should be truncated to scale=4
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8k # Increase scale to 8 places
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.01 p # Result should be exact again
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0.1 p # Leading zeros are ignored
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00.1 p # Leading zeros are ignored
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EOF
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dc input.dc > output.txt
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cat > expect.txt << EOF
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0
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16
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1
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1
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1
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.5
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.0625
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.0625
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.0039
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.00390625
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.0625
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.0625
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EOF
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atf_check cmp expect.txt output.txt
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}
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atf_test_case base3_input
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base3_input_head()
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{
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atf_set "descr" "Input ternary numbers"
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}
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base3_input_body()
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{
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cat > input.dc << EOF
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4k # 4 digits of precision
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3i # Base 3 input
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0 p
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1 p
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10 p
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.1 p # Repeating fractions get truncated
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EOF
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dc input.dc > output.txt
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cat > expect.txt << EOF
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0
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1
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3
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.3333
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EOF
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atf_check cmp expect.txt output.txt
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}
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atf_init_test_cases()
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{
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atf_add_test_case base16_input
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atf_add_test_case base3_input
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}
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