ce80c24ae4
* src/math.c (logand): Start from -1 instead of 0, so that the bitwise AND-ed
result is the intersection of bit sets instead of always 0.
* tests/math.test ("logand", "logand 3"): Test it.
Co-authored-by: Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
99 lines
3 KiB
Scheme
Executable file
99 lines
3 KiB
Scheme
Executable file
#! /bin/sh
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# -*-scheme-*-
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exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests math)' -s "$0" "$@"
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!#
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;;; -*-scheme-*-
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;;; GNU Mes --- Maxwell Equations of Software
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;;; Copyright © 2016,2018,2019,2021 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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;;;
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;;; This file is part of GNU Mes.
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;;;
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;;; GNU Mes is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Mes is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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(define-module (tests math)
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#:use-module (mes mes-0)
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#:use-module (mes test))
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(mes-use-module (mes test))
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(pass-if-equal "string->number" 42 (string->number "42"))
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(pass-if-equal "string->number neg" -42 (string->number "-42"))
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(pass-if-equal "string->number #hex" 170 (string->number "#xaa"))
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(pass-if-not "string->number hex" (string->number "aa"))
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(pass-if-equal "string->number hex" 170 (string->number "aa" 16))
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(pass-if-equal "string->number float" 1 (inexact->exact (string->number "1.0")))
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(pass-if-equal "+" 6 (+ 1 2 3))
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(pass-if-equal "*" 27 (* 3 3 3))
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(pass-if-equal "/" 3 (/ 9 3))
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(pass-if-equal "remainder" 2 (remainder 11 3))
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(pass-if-equal "modulo" 2 (modulo 11 3))
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(pass-if-equal "expt" 8 (expt 2 3))
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(pass-if-equal "logand" -1 (logand))
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(pass-if-equal "logand 3" 3 (logand 3 7 11))
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(pass-if-equal "logior" 7 (logior 0 1 2 4))
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(pass-if-equal "logxor" -2 (logxor 1 -1))
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(pass-if-equal "ash"
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8 (ash 1 3))
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(pass-if-equal "ash -1"
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5 (ash 10 -1))
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(pass-if-equal "=" 3 '3)
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(pass-if "= 2" (not (= 3 '4)))
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(pass-if "=" (=))
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(pass-if "= 1" (= 0))
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(pass-if "= 2" (= 0 0))
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(pass-if "= 3" (= 0 0))
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(pass-if-not "= 4" (= 0 1 0))
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(pass-if "<" (<))
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(pass-if "< 1" (< 0))
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(pass-if "< 2" (< 0 1))
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(pass-if-not "< 3" (< 1 0))
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(pass-if "< 4" (< 0 1 2))
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(pass-if-not "< 5" (< 0 2 1))
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(pass-if "< INT-MIN" (< -2147483648))
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(pass-if "< INT-MIN" (< -2147483648 0))
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(pass-if "< INT-MAX" (< 2147483647))
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(pass-if ">" (>))
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(pass-if "> 1" (> 0))
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(pass-if "> 2" (> 1 0))
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(pass-if-not "> 3" (> 0 1))
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(pass-if "> 4" (> 2 1 0))
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(pass-if-not "> 5" (> 1 2 0))
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(pass-if "> INT-MAX" (> 2147483647))
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(pass-if "> INT-MAX 0" (> 2147483647 0))
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(pass-if "> INT-MIN" (> -2147483648))
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(pass-if ">=" (>= 3 2 1))
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(pass-if-not ">= 2" (>= 1 2 3))
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(pass-if-not "<=" (<= 3 2 1))
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(pass-if "<= 2" (<= 1 2 3))
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(pass-if-equal "max" 0 (max 0))
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(pass-if-equal "max 1" 1 (max 0 1))
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(pass-if-equal "max 2" 2 (max 1 0 2))
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(pass-if-equal "min" 0 (min 0))
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(pass-if-equal "min 1" 0 (min 0 1))
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(pass-if-equal "min 2" 0 (min 1 0 2))
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(pass-if-equal "#x-10" -16 #x-10)
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(result 'report)
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