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guile/test-suite/tests/numbers.test
Kevin Ryde e456f08e24 Correction to: 
(integer?): Exercise nan and +/-inf.

+/-inf should be #t.
2004-09-08 01:22:37 +00:00

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;;;; numbers.test --- tests guile's numbers -*- scheme -*-
;;;; Copyright (C) 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 2.1 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(define-module (test-suite test-numbers)
#:use-module (test-suite lib)
#:use-module (ice-9 documentation))
;;;
;;; miscellaneous
;;;
(define exception:numerical-overflow
(cons 'numerical-overflow "^Numerical overflow"))
(define (documented? object)
(not (not (object-documentation object))))
(define fixnum-bit
(inexact->exact (+ (/ (log (+ most-positive-fixnum 1)) (log 2)) 1)))
(define fixnum-min most-negative-fixnum)
(define fixnum-max most-positive-fixnum)
;; Divine the number of bits in the mantissa of a flonum.
;; We look for when 2.0^i+1.0 gets rounded, ie. the difference between that
;; value and 2.0^k is not 1.0.
;; Of course this assumes flonums have a fixed precision mantissa, but
;; that's the case now and probably into the forseeable future.
;; On an IEEE system, which means pretty much everywhere, the value here is
;; the usual 53.
;;
(define dbl-mant-dig
(let more ((i 1)
(d 2.0))
(if (> i 1024)
(error "Oops, cannot determine number of bits in mantissa of inexact"))
(let* ((sum (+ 1.0 d))
(diff (- sum d)))
(if (= diff 1.0)
(more (1+ i) (* 2.0 d))
i))))
;; like ash, but working on a flonum
(define (ash-flo x n)
(while (> n 0)
(set! x (* 2.0 x))
(set! n (1- n)))
(while (< n 0)
(set! x (* 0.5 x))
(set! n (1+ n)))
x)
;;;
;;; exact?
;;;
(with-test-prefix "exact?"
(pass-if "documented?"
(documented? exact?))
(with-test-prefix "integers"
(pass-if "0"
(exact? 0))
(pass-if "fixnum-max"
(exact? fixnum-max))
(pass-if "fixnum-max + 1"
(exact? (+ fixnum-max 1)))
(pass-if "fixnum-min"
(exact? fixnum-min))
(pass-if "fixnum-min - 1"
(exact? (- fixnum-min 1))))
(with-test-prefix "reals"
;; (FIXME: need better examples.)
(pass-if "sqrt (fixnum-max^2 - 1)"
(eq? #f (exact? (sqrt (- (expt fixnum-max 2) 1)))))
(pass-if "sqrt ((fixnum-max+1)^2 - 1)"
(eq? #f (exact? (sqrt (- (expt (+ fixnum-max 1) 2) 1)))))))
;;;
;;; odd?
;;;
(with-test-prefix "odd?"
(pass-if (documented? odd?))
(pass-if (odd? 1))
(pass-if (odd? -1))
(pass-if (not (odd? 0)))
(pass-if (not (odd? 2)))
(pass-if (not (odd? -2)))
(pass-if (odd? (+ (* 2 fixnum-max) 1)))
(pass-if (not (odd? (* 2 fixnum-max))))
(pass-if (odd? (- (* 2 fixnum-min) 1)))
(pass-if (not (odd? (* 2 fixnum-min)))))
;;;
;;; even?
;;;
(with-test-prefix "even?"
(pass-if (documented? even?))
(pass-if (even? 2))
(pass-if (even? -2))
(pass-if (even? 0))
(pass-if (not (even? 1)))
(pass-if (not (even? -1)))
(pass-if (not (even? (+ (* 2 fixnum-max) 1))))
(pass-if (even? (* 2 fixnum-max)))
(pass-if (not (even? (- (* 2 fixnum-min) 1))))
(pass-if (even? (* 2 fixnum-min))))
;;;
;;; inf? and inf
;;;
(with-test-prefix "inf?"
(pass-if (documented? inf?))
(pass-if (inf? (inf)))
;; FIXME: what are the expected behaviors?
;; (pass-if (inf? (/ 1.0 0.0))
;; (pass-if (inf? (/ 1 0.0))
(pass-if (not (inf? 0)))
(pass-if (not (inf? 42.0)))
(pass-if (not (inf? (+ fixnum-max 1))))
(pass-if (not (inf? (- fixnum-min 1)))))
;;;
;;; nan? and nan
;;;
(with-test-prefix "nan?"
(pass-if (documented? nan?))
(pass-if (nan? (nan)))
;; FIXME: other ways we should be able to generate NaN?
(pass-if (not (nan? 0)))
(pass-if (not (nan? 42.0)))
(pass-if (not (nan? (+ fixnum-max 1))))
(pass-if (not (nan? (- fixnum-min 1)))))
;;;
;;; abs
;;;
(with-test-prefix "abs"
(pass-if (documented? abs))
(pass-if (zero? (abs 0)))
(pass-if (= 1 (abs 1)))
(pass-if (= 1 (abs -1)))
(pass-if (= (+ fixnum-max 1) (abs (+ fixnum-max 1))))
(pass-if (= (+ (- fixnum-min) 1) (abs (- fixnum-min 1))))
(pass-if (= 0.0 (abs 0.0)))
(pass-if (= 1.0 (abs 1.0)))
(pass-if (= 1.0 (abs -1.0)))
(pass-if (nan? (abs +nan.0)))
(pass-if (= +inf.0 (abs +inf.0)))
(pass-if (= +inf.0 (abs -inf.0))))
;;;
;;; quotient
;;;
(with-test-prefix "quotient"
(expect-fail "documented?"
(documented? quotient))
(with-test-prefix "0 / n"
(pass-if "n = 1"
(eqv? 0 (quotient 0 1)))
(pass-if "n = -1"
(eqv? 0 (quotient 0 -1)))
(pass-if "n = 2"
(eqv? 0 (quotient 0 2)))
(pass-if "n = fixnum-max"
(eqv? 0 (quotient 0 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (quotient 0 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (quotient 0 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (quotient 0 (- fixnum-min 1)))))
(with-test-prefix "1 / n"
(pass-if "n = 1"
(eqv? 1 (quotient 1 1)))
(pass-if "n = -1"
(eqv? -1 (quotient 1 -1)))
(pass-if "n = 2"
(eqv? 0 (quotient 1 2)))
(pass-if "n = fixnum-max"
(eqv? 0 (quotient 1 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (quotient 1 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (quotient 1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (quotient 1 (- fixnum-min 1)))))
(with-test-prefix "-1 / n"
(pass-if "n = 1"
(eqv? -1 (quotient -1 1)))
(pass-if "n = -1"
(eqv? 1 (quotient -1 -1)))
(pass-if "n = 2"
(eqv? 0 (quotient -1 2)))
(pass-if "n = fixnum-max"
(eqv? 0 (quotient -1 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (quotient -1 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (quotient -1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (quotient -1 (- fixnum-min 1)))))
(with-test-prefix "fixnum-max / n"
(pass-if "n = 1"
(eqv? fixnum-max (quotient fixnum-max 1)))
(pass-if "n = -1"
(eqv? (- fixnum-max) (quotient fixnum-max -1)))
(pass-if "n = 2"
(eqv? fixnum-max (+ (* (quotient fixnum-max 2) 2) 1)))
(pass-if "n = fixnum-max"
(eqv? 1 (quotient fixnum-max fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (quotient fixnum-max (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (quotient fixnum-max fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (quotient fixnum-max (- fixnum-min 1)))))
(with-test-prefix "(fixnum-max + 1) / n"
(pass-if "n = 1"
(eqv? (+ fixnum-max 1) (quotient (+ fixnum-max 1) 1)))
(pass-if "n = -1"
(eqv? (- (+ fixnum-max 1)) (quotient (+ fixnum-max 1) -1)))
(pass-if "n = 2"
(eqv? (+ fixnum-max 1) (* (quotient (+ fixnum-max 1) 2) 2)))
(pass-if "n = fixnum-max"
(eqv? 1 (quotient (+ fixnum-max 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 1 (quotient (+ fixnum-max 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? -1 (quotient (+ fixnum-max 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (quotient (+ fixnum-max 1) (- fixnum-min 1)))))
(with-test-prefix "fixnum-min / n"
(pass-if "n = 1"
(eqv? fixnum-min (quotient fixnum-min 1)))
(pass-if "n = -1"
(eqv? (- fixnum-min) (quotient fixnum-min -1)))
(pass-if "n = 2"
(eqv? fixnum-min (* (quotient fixnum-min 2) 2)))
(pass-if "n = fixnum-max"
(eqv? -1 (quotient fixnum-min fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? -1 (quotient fixnum-min (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 1 (quotient fixnum-min fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (quotient fixnum-min (- fixnum-min 1))))
(pass-if "n = - fixnum-min - 1"
(eqv? -1 (quotient fixnum-min (1- (- fixnum-min)))))
;; special case, normally inum/big is zero
(pass-if "n = - fixnum-min"
(eqv? -1 (quotient fixnum-min (- fixnum-min))))
(pass-if "n = - fixnum-min + 1"
(eqv? 0 (quotient fixnum-min (1+ (- fixnum-min))))))
(with-test-prefix "(fixnum-min - 1) / n"
(pass-if "n = 1"
(eqv? (- fixnum-min 1) (quotient (- fixnum-min 1) 1)))
(pass-if "n = -1"
(eqv? (- (- fixnum-min 1)) (quotient (- fixnum-min 1) -1)))
(pass-if "n = 2"
(eqv? fixnum-min (* (quotient (- fixnum-min 1) 2) 2)))
(pass-if "n = fixnum-max"
(eqv? -1 (quotient (- fixnum-min 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? -1 (quotient (- fixnum-min 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 1 (quotient (- fixnum-min 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 1 (quotient (- fixnum-min 1) (- fixnum-min 1)))))
;; Positive dividend and divisor
(pass-if "35 / 7"
(eqv? 5 (quotient 35 7)))
;; Negative dividend, positive divisor
(pass-if "-35 / 7"
(eqv? -5 (quotient -35 7)))
;; Positive dividend, negative divisor
(pass-if "35 / -7"
(eqv? -5 (quotient 35 -7)))
;; Negative dividend and divisor
(pass-if "-35 / -7"
(eqv? 5 (quotient -35 -7)))
;; Are numerical overflows detected correctly?
(with-test-prefix "division by zero"
(pass-if-exception "(quotient 1 0)"
exception:numerical-overflow
(quotient 1 0))
(pass-if-exception "(quotient bignum 0)"
exception:numerical-overflow
(quotient (+ fixnum-max 1) 0)))
;; Are wrong type arguments detected correctly?
)
;;;
;;; remainder
;;;
(with-test-prefix "remainder"
(expect-fail "documented?"
(documented? remainder))
(with-test-prefix "0 / n"
(pass-if "n = 1"
(eqv? 0 (remainder 0 1)))
(pass-if "n = -1"
(eqv? 0 (remainder 0 -1)))
(pass-if "n = fixnum-max"
(eqv? 0 (remainder 0 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (remainder 0 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (remainder 0 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (remainder 0 (- fixnum-min 1)))))
(with-test-prefix "1 / n"
(pass-if "n = 1"
(eqv? 0 (remainder 1 1)))
(pass-if "n = -1"
(eqv? 0 (remainder 1 -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (remainder 1 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 1 (remainder 1 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 1 (remainder 1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 1 (remainder 1 (- fixnum-min 1)))))
(with-test-prefix "-1 / n"
(pass-if "n = 1"
(eqv? 0 (remainder -1 1)))
(pass-if "n = -1"
(eqv? 0 (remainder -1 -1)))
(pass-if "n = fixnum-max"
(eqv? -1 (remainder -1 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? -1 (remainder -1 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? -1 (remainder -1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? -1 (remainder -1 (- fixnum-min 1)))))
(with-test-prefix "fixnum-max / n"
(pass-if "n = 1"
(eqv? 0 (remainder fixnum-max 1)))
(pass-if "n = -1"
(eqv? 0 (remainder fixnum-max -1)))
(pass-if "n = fixnum-max"
(eqv? 0 (remainder fixnum-max fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? fixnum-max (remainder fixnum-max (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? fixnum-max (remainder fixnum-max fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? fixnum-max (remainder fixnum-max (- fixnum-min 1)))))
(with-test-prefix "(fixnum-max + 1) / n"
(pass-if "n = 1"
(eqv? 0 (remainder (+ fixnum-max 1) 1)))
(pass-if "n = -1"
(eqv? 0 (remainder (+ fixnum-max 1) -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (remainder (+ fixnum-max 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (remainder (+ fixnum-max 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (remainder (+ fixnum-max 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? (+ fixnum-max 1) (remainder (+ fixnum-max 1) (- fixnum-min 1)))))
(with-test-prefix "fixnum-min / n"
(pass-if "n = 1"
(eqv? 0 (remainder fixnum-min 1)))
(pass-if "n = -1"
(eqv? 0 (remainder fixnum-min -1)))
(pass-if "n = fixnum-max"
(eqv? -1 (remainder fixnum-min fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (remainder fixnum-min (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (remainder fixnum-min fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? fixnum-min (remainder fixnum-min (- fixnum-min 1))))
(pass-if "n = - fixnum-min - 1"
(eqv? -1 (remainder fixnum-min (1- (- fixnum-min)))))
;; special case, normally inum%big is the inum
(pass-if "n = - fixnum-min"
(eqv? 0 (remainder fixnum-min (- fixnum-min))))
(pass-if "n = - fixnum-min + 1"
(eqv? fixnum-min (remainder fixnum-min (1+ (- fixnum-min))))))
(with-test-prefix "(fixnum-min - 1) / n"
(pass-if "n = 1"
(eqv? 0 (remainder (- fixnum-min 1) 1)))
(pass-if "n = -1"
(eqv? 0 (remainder (- fixnum-min 1) -1)))
(pass-if "n = fixnum-max"
(eqv? -2 (remainder (- fixnum-min 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? -1 (remainder (- fixnum-min 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? -1 (remainder (- fixnum-min 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (remainder (- fixnum-min 1) (- fixnum-min 1)))))
;; Positive dividend and divisor
(pass-if "35 / 7"
(eqv? 0 (remainder 35 7)))
;; Negative dividend, positive divisor
(pass-if "-35 / 7"
(eqv? 0 (remainder -35 7)))
;; Positive dividend, negative divisor
(pass-if "35 / -7"
(eqv? 0 (remainder 35 -7)))
;; Negative dividend and divisor
(pass-if "-35 / -7"
(eqv? 0 (remainder -35 -7)))
;; Are numerical overflows detected correctly?
(with-test-prefix "division by zero"
(pass-if-exception "(remainder 1 0)"
exception:numerical-overflow
(remainder 1 0))
(pass-if-exception "(remainder bignum 0)"
exception:numerical-overflow
(remainder (+ fixnum-max 1) 0)))
;; Are wrong type arguments detected correctly?
)
;;;
;;; modulo
;;;
(with-test-prefix "modulo"
(expect-fail "documented?"
(documented? modulo))
(with-test-prefix "0 % n"
(pass-if "n = 1"
(eqv? 0 (modulo 0 1)))
(pass-if "n = -1"
(eqv? 0 (modulo 0 -1)))
(pass-if "n = fixnum-max"
(eqv? 0 (modulo 0 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (modulo 0 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (modulo 0 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (modulo 0 (- fixnum-min 1)))))
(with-test-prefix "1 % n"
(pass-if "n = 1"
(eqv? 0 (modulo 1 1)))
(pass-if "n = -1"
(eqv? 0 (modulo 1 -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (modulo 1 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 1 (modulo 1 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? (+ fixnum-min 1) (modulo 1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? fixnum-min (modulo 1 (- fixnum-min 1)))))
(with-test-prefix "-1 % n"
(pass-if "n = 1"
(eqv? 0 (modulo -1 1)))
(pass-if "n = -1"
(eqv? 0 (modulo -1 -1)))
(pass-if "n = fixnum-max"
(eqv? (- fixnum-max 1) (modulo -1 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? fixnum-max (modulo -1 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? -1 (modulo -1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? -1 (modulo -1 (- fixnum-min 1)))))
(with-test-prefix "fixnum-max % n"
(pass-if "n = 1"
(eqv? 0 (modulo fixnum-max 1)))
(pass-if "n = -1"
(eqv? 0 (modulo fixnum-max -1)))
(pass-if "n = fixnum-max"
(eqv? 0 (modulo fixnum-max fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? fixnum-max (modulo fixnum-max (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? -1 (modulo fixnum-max fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? -2 (modulo fixnum-max (- fixnum-min 1)))))
(with-test-prefix "(fixnum-max + 1) % n"
(pass-if "n = 1"
(eqv? 0 (modulo (+ fixnum-max 1) 1)))
(pass-if "n = -1"
(eqv? 0 (modulo (+ fixnum-max 1) -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (modulo (+ fixnum-max 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (modulo (+ fixnum-max 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (modulo (+ fixnum-max 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? -1 (modulo (+ fixnum-max 1) (- fixnum-min 1)))))
(with-test-prefix "fixnum-min % n"
(pass-if "n = 1"
(eqv? 0 (modulo fixnum-min 1)))
(pass-if "n = -1"
(eqv? 0 (modulo fixnum-min -1)))
(pass-if "n = fixnum-max"
(eqv? (- fixnum-max 1) (modulo fixnum-min fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 0 (modulo fixnum-min (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 0 (modulo fixnum-min fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? fixnum-min (modulo fixnum-min (- fixnum-min 1)))))
(with-test-prefix "(fixnum-min - 1) % n"
(pass-if "n = 1"
(eqv? 0 (modulo (- fixnum-min 1) 1)))
(pass-if "n = -1"
(eqv? 0 (modulo (- fixnum-min 1) -1)))
(pass-if "n = fixnum-max"
(eqv? (- fixnum-max 2) (modulo (- fixnum-min 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? fixnum-max (modulo (- fixnum-min 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? -1 (modulo (- fixnum-min 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 0 (modulo (- fixnum-min 1) (- fixnum-min 1)))))
;; Positive dividend and divisor
(pass-if "13 % 4"
(eqv? 1 (modulo 13 4)))
(pass-if "2177452800 % 86400"
(eqv? 0 (modulo 2177452800 86400)))
;; Negative dividend, positive divisor
(pass-if "-13 % 4"
(eqv? 3 (modulo -13 4)))
(pass-if "-2177452800 % 86400"
(eqv? 0 (modulo -2177452800 86400)))
;; Positive dividend, negative divisor
(pass-if "13 % -4"
(eqv? -3 (modulo 13 -4)))
(pass-if "2177452800 % -86400"
(eqv? 0 (modulo 2177452800 -86400)))
;; Negative dividend and divisor
(pass-if "-13 % -4"
(eqv? -1 (modulo -13 -4)))
(pass-if "-2177452800 % -86400"
(eqv? 0 (modulo -2177452800 -86400)))
;; Are numerical overflows detected correctly?
(with-test-prefix "division by zero"
(pass-if-exception "(modulo 1 0)"
exception:numerical-overflow
(modulo 1 0))
(pass-if-exception "(modulo bignum 0)"
exception:numerical-overflow
(modulo (+ fixnum-max 1) 0)))
;; Are wrong type arguments detected correctly?
)
;;;
;;; modulo-expt
;;;
(with-test-prefix "modulo-expt"
(pass-if (= 1 (modulo-expt 17 23 47)))
(pass-if (= 1 (modulo-expt 17 -23 47)))
(pass-if (= 17 (modulo-expt 17 -22 47)))
(pass-if (= 36 (modulo-expt 17 22 47)))
(pass-if (= 183658794479969134816674175082294846241553725240 (modulo-expt 111122223333444455556666 111122223333444455556666 1153478690012629968439432872520758982731022934717)))
(pass-if-exception
"Proper exception with 0 modulus"
exception:numerical-overflow
(modulo-expt 17 23 0))
(pass-if-exception
"Proper exception when result not invertible"
exception:numerical-overflow
(modulo-expt 10 -1 48))
(pass-if-exception
"Proper exception with wrong type argument"
exception:wrong-type-arg
(modulo-expt "Sam" 23 10))
(pass-if-exception
"Proper exception with wrong type argument"
exception:wrong-type-arg
(modulo-expt 17 9.9 10))
(pass-if-exception
"Proper exception with wrong type argument"
exception:wrong-type-arg
(modulo-expt 17 23 'Ethel)))
;;;
;;; gcd
;;;
(with-test-prefix "gcd"
(expect-fail "documented?"
(documented? gcd))
(with-test-prefix "(0 n)"
(pass-if "n = 0"
(eqv? 0 (gcd 0 0)))
(pass-if "n = 1"
(eqv? 1 (gcd 0 1)))
(pass-if "n = -1"
(eqv? 1 (gcd 0 -1)))
(pass-if "n = fixnum-max"
(eqv? fixnum-max (gcd 0 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? (+ fixnum-max 1) (gcd 0 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? (- fixnum-min) (gcd 0 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? (- (- fixnum-min 1)) (gcd 0 (- fixnum-min 1)))))
(with-test-prefix "(n 0)"
(pass-if "n = 2^128 * fixnum-max"
(eqv? (ash fixnum-max 128) (gcd (ash fixnum-max 128) 0))))
(with-test-prefix "(1 n)"
(pass-if "n = 0"
(eqv? 1 (gcd 1 0)))
(pass-if "n = 1"
(eqv? 1 (gcd 1 1)))
(pass-if "n = -1"
(eqv? 1 (gcd 1 -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (gcd 1 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 1 (gcd 1 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 1 (gcd 1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 1 (gcd 1 (- fixnum-min 1)))))
(with-test-prefix "(-1 n)"
(pass-if "n = 0"
(eqv? 1 (gcd -1 0)))
(pass-if "n = 1"
(eqv? 1 (gcd -1 1)))
(pass-if "n = -1"
(eqv? 1 (gcd -1 -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (gcd -1 fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 1 (gcd -1 (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 1 (gcd -1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 1 (gcd -1 (- fixnum-min 1)))))
(with-test-prefix "(fixnum-max n)"
(pass-if "n = 0"
(eqv? fixnum-max (gcd fixnum-max 0)))
(pass-if "n = 1"
(eqv? 1 (gcd fixnum-max 1)))
(pass-if "n = -1"
(eqv? 1 (gcd fixnum-max -1)))
(pass-if "n = fixnum-max"
(eqv? fixnum-max (gcd fixnum-max fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 1 (gcd fixnum-max (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 1 (gcd fixnum-max fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 1 (gcd fixnum-max (- fixnum-min 1)))))
(with-test-prefix "((+ fixnum-max 1) n)"
(pass-if "n = 0"
(eqv? (+ fixnum-max 1) (gcd (+ fixnum-max 1) 0)))
(pass-if "n = 1"
(eqv? 1 (gcd (+ fixnum-max 1) 1)))
(pass-if "n = -1"
(eqv? 1 (gcd (+ fixnum-max 1) -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (gcd (+ fixnum-max 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? (+ fixnum-max 1) (gcd (+ fixnum-max 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? (+ fixnum-max 1) (gcd (+ fixnum-max 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 1 (gcd (+ fixnum-max 1) (- fixnum-min 1)))))
(with-test-prefix "(fixnum-min n)"
(pass-if "n = 0"
(eqv? (- fixnum-min) (gcd fixnum-min 0)))
(pass-if "n = 1"
(eqv? 1 (gcd fixnum-min 1)))
(pass-if "n = -1"
(eqv? 1 (gcd fixnum-min -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (gcd fixnum-min fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? (+ fixnum-max 1) (gcd fixnum-min (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? (- fixnum-min) (gcd fixnum-min fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? 1 (gcd fixnum-min (- fixnum-min 1)))))
(with-test-prefix "((- fixnum-min 1) n)"
(pass-if "n = 0"
(eqv? (- (- fixnum-min 1)) (gcd (- fixnum-min 1) 0)))
(pass-if "n = 1"
(eqv? 1 (gcd (- fixnum-min 1) 1)))
(pass-if "n = -1"
(eqv? 1 (gcd (- fixnum-min 1) -1)))
(pass-if "n = fixnum-max"
(eqv? 1 (gcd (- fixnum-min 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(eqv? 1 (gcd (- fixnum-min 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(eqv? 1 (gcd (- fixnum-min 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(eqv? (- (- fixnum-min 1)) (gcd (- fixnum-min 1) (- fixnum-min 1)))))
;; Are wrong type arguments detected correctly?
)
;;;
;;; lcm
;;;
(with-test-prefix "lcm"
;; FIXME: more tests?
;; (some of these are already in r4rs.test)
(expect-fail (documented? lcm))
(pass-if (= (lcm) 1))
(pass-if (= (lcm 32 -36) 288))
(let ((big-n 115792089237316195423570985008687907853269984665640564039457584007913129639936) ; 2 ^ 256
(lcm-of-big-n-and-11 1273712981610478149659280835095566986385969831322046204434033424087044426039296))
(pass-if (= lcm-of-big-n-and-11 (lcm big-n 11)))
(pass-if (= lcm-of-big-n-and-11 (lcm 11 big-n 11)))))
;;;
;;; number->string
;;;
(with-test-prefix "number->string"
(let ((num->str->num
(lambda (n radix)
(string->number (number->string n radix) radix))))
(pass-if (documented? number->string))
(pass-if (string=? (number->string 0) "0"))
(pass-if (string=? (number->string 171) "171"))
(pass-if (= (+ fixnum-max 1) (num->str->num (+ fixnum-max 1) 10)))
(pass-if (= (- fixnum-min 1) (num->str->num (- fixnum-min 1) 10)))
(pass-if (= (inf) (num->str->num (inf) 10)))
(pass-if (= 1.3 (num->str->num 1.3 10)))
;; XXX - some results depend on whether Guile is compiled optimzed
;; or not. It is clearly undesirable to have number->string to be
;; influenced by this.
(pass-if (string=? (number->string 35.25 36) "Z.9"))
(pass-if (or (string=? (number->string 0.25 2) "0.01")
(string=? (number->string 0.25 2) "0.010")))
(pass-if (string=? (number->string 255.0625 16) "FF.1"))
(pass-if (string=? (number->string (/ 1 3) 3) "1/10"))
(pass-if (or (string=? (number->string 11.33333333333333333 12)
"B.4")
(string=? (number->string 11.33333333333333333 12)
"B.400000000000009")))
(pass-if (or (string=? (number->string 1.324e44 16)
"5.EFE0A14FAFEe24")
(string=? (number->string 1.324e44 16)
"5.EFE0A14FAFDF8e24")))))
;;;
;;; string->number
;;;
(with-test-prefix "string->number"
(pass-if "string->number"
(documented? string->number))
(pass-if "non number strings"
(for-each (lambda (x) (if (string->number x) (throw 'fail)))
'("" "q" "1q" "6+7iq" "8+9q" "10+11" "13+" "18@19q" "20@q" "23@"
"+25iq" "26i" "-q" "-iq" "i" "5#.0" "8/" "10#11" ".#" "."
"#o.2" "3.4q" "15.16e17q" "18.19e+q" ".q" ".17#18" "10q" "#b2"
"#b3" "#b4" "#b5" "#b6" "#b7" "#b8" "#b9" "#ba" "#bb" "#bc"
"#bd" "#be" "#bf" "#q" "#b#b1" "#o#o1" "#d#d1" "#x#x1" "#e#e1"
"#i#i1" "12@12+0i"))
#t)
(pass-if "valid number strings"
(for-each (lambda (couple)
(apply
(lambda (x y)
(let ((xx (string->number x)))
(if (or (eq? xx #f) (not (eqv? xx y)))
(begin
(pk x y)
(throw 'fail)))))
couple))
`(;; Radix:
("#b0" 0) ("#B0" 0) ("#b1" 1) ("#B1" 1) ("#o0" 0) ("#O0" 0)
("#o1" 1) ("#O1" 1) ("#o2" 2) ("#O2" 2) ("#o3" 3) ("#O3" 3)
("#o4" 4) ("#O4" 4) ("#o5" 5) ("#O5" 5) ("#o6" 6) ("#O6" 6)
("#o7" 7) ("#O7" 7) ("#d0" 0) ("#D0" 0) ("#d1" 1) ("#D1" 1)
("#d2" 2) ("#D2" 2) ("#d3" 3) ("#D3" 3) ("#d4" 4) ("#D4" 4)
("#d5" 5) ("#D5" 5) ("#d6" 6) ("#D6" 6) ("#d7" 7) ("#D7" 7)
("#d8" 8) ("#D8" 8) ("#d9" 9) ("#D9" 9)
("#xa" 10) ("#Xa" 10) ("#xb" 11) ("#Xb" 11)
("#xc" 12) ("#Xc" 12) ("#xd" 13) ("#Xd" 13)
("#xe" 14) ("#Xe" 14) ("#xf" 15) ("#Xf" 15)
("#b1010" 10)
("#o12345670" 2739128)
("#d1234567890" 1234567890)
("#x1234567890abcdef" 1311768467294899695)
;; Exactness:
("#e1" 1) ("#e1.2" 12/10)
("#i1.1" 1.1) ("#i1" 1.0)
;; Integers:
("1" ,(1+ 0)) ("23" ,(+ 9 9 5)) ("-1" ,(- 0 1))
("-45" ,(- 0 45)) ("2#" 20.0) ("2##" 200.0) ("12##" 1200.0)
("#b#i100" 4.0)
;; Fractions:
("1/1" 1) ("1/2" 1/2) ("-1/2" -1/2) ("1#/1" 10.0)
("10/1#" 1.0) ("1#/1#" 1.0) ("#e9/10" 9/10) ("#e10/1#" 1)
("#i6/8" 0.75) ("#i1/1" 1.0)
;; Decimal numbers:
;; * <uinteger 10> <suffix>
("1e2" 100.0) ("1E2" 100.0) ("1s2" 100.0) ("1S2" 100.0)
("1f2" 100.0) ("1F2" 100.0) ("1d2" 100.0) ("1D2" 100.0)
("1l2" 100.0) ("1L2" 100.0) ("1e+2" 100.0) ("1e-2" 0.01)
;; * . <digit 10>+ #* <suffix>
(".1" .1) (".0123456789" 123456789e-10) (".16#" 0.16)
(".0123456789e10" 123456789.0) (".16#e3" 160.0) ("#d.3" 0.3)
;; * <digit 10>+ . <digit 10>* #* <suffix>
("3." ,(exact->inexact 3)) ("3.e0" ,(exact->inexact 3))
("3.1" ,(exact->inexact 31/10)) ("3.1e0" 3.1) ("3.1#" 3.1)
("3.1#e0" 3.1)
;; * <digit 10>+ #+ . #* <suffix>
("3#." 30.0) ("3#.e0" 30.0) ("3#.#" 30.0) ("3#.#e0" 30.0)
;; Complex:
("1@0" 1.0) ("1@+0" 1.0) ("1@-0" 1.0)
("2+3i" ,(+ 2 (* 3 +i))) ("4-5i" ,(- 4 (* 5 +i)))
("1+i" 1+1i) ("1-i" 1-1i) ("+1i" 0+1i) ("-1i" 0-1i)
("+i" +1i) ("-i" -1i)))
#t)
(pass-if-exception "exponent too big"
exception:out-of-range
(string->number "12.13e141414")))
;;;
;;; number?
;;;
(with-test-prefix "number?"
(pass-if (documented? number?))
(pass-if (number? 0))
(pass-if (number? 7))
(pass-if (number? -7))
(pass-if (number? 1.3))
(pass-if (number? (+ 1 fixnum-max)))
(pass-if (number? (- 1 fixnum-min)))
(pass-if (number? 3+4i))
(pass-if (not (number? #\a)))
(pass-if (not (number? "a")))
(pass-if (not (number? (make-vector 0))))
(pass-if (not (number? (cons 1 2))))
(pass-if (not (number? #t)))
(pass-if (not (number? (lambda () #t))))
(pass-if (not (number? (current-input-port)))))
;;;
;;; complex?
;;;
(with-test-prefix "complex?"
(pass-if (documented? complex?))
(pass-if (complex? 0))
(pass-if (complex? 7))
(pass-if (complex? -7))
(pass-if (complex? (+ 1 fixnum-max)))
(pass-if (complex? (- 1 fixnum-min)))
(pass-if (complex? 1.3))
(pass-if (complex? 3+4i))
(pass-if (not (complex? #\a)))
(pass-if (not (complex? "a")))
(pass-if (not (complex? (make-vector 0))))
(pass-if (not (complex? (cons 1 2))))
(pass-if (not (complex? #t)))
(pass-if (not (complex? (lambda () #t))))
(pass-if (not (complex? (current-input-port)))))
;;;
;;; real?
;;;
(with-test-prefix "real?"
(pass-if (documented? real?))
(pass-if (real? 0))
(pass-if (real? 7))
(pass-if (real? -7))
(pass-if (real? (+ 1 fixnum-max)))
(pass-if (real? (- 1 fixnum-min)))
(pass-if (real? 1.3))
(pass-if (not (real? 3+4i)))
(pass-if (not (real? #\a)))
(pass-if (not (real? "a")))
(pass-if (not (real? (make-vector 0))))
(pass-if (not (real? (cons 1 2))))
(pass-if (not (real? #t)))
(pass-if (not (real? (lambda () #t))))
(pass-if (not (real? (current-input-port)))))
;;;
;;; rational? (same as real? right now)
;;;
(with-test-prefix "rational?"
(pass-if (documented? rational?))
(pass-if (rational? 0))
(pass-if (rational? 7))
(pass-if (rational? -7))
(pass-if (rational? (+ 1 fixnum-max)))
(pass-if (rational? (- 1 fixnum-min)))
(pass-if (rational? 1.3))
(pass-if (not (rational? 3+4i)))
(pass-if (not (rational? #\a)))
(pass-if (not (rational? "a")))
(pass-if (not (rational? (make-vector 0))))
(pass-if (not (rational? (cons 1 2))))
(pass-if (not (rational? #t)))
(pass-if (not (rational? (lambda () #t))))
(pass-if (not (rational? (current-input-port)))))
;;;
;;; integer?
;;;
(with-test-prefix "integer?"
(pass-if (documented? integer?))
(pass-if (integer? 0))
(pass-if (integer? 7))
(pass-if (integer? -7))
(pass-if (integer? (+ 1 fixnum-max)))
(pass-if (integer? (- 1 fixnum-min)))
(pass-if (and (= 3+0i (round 3+0i)) (integer? 3+0i)))
(pass-if (and (= 1.0 (round 1.0)) (integer? 1.0)))
(pass-if (not (integer? 1.3)))
(pass-if (integer? +inf.0))
(pass-if (integer? -inf.0))
(pass-if (not (integer? +nan.0)))
(pass-if (not (integer? 3+4i)))
(pass-if (not (integer? #\a)))
(pass-if (not (integer? "a")))
(pass-if (not (integer? (make-vector 0))))
(pass-if (not (integer? (cons 1 2))))
(pass-if (not (integer? #t)))
(pass-if (not (integer? (lambda () #t))))
(pass-if (not (integer? (current-input-port)))))
;;;
;;; inexact?
;;;
(with-test-prefix "inexact?"
(pass-if (documented? inexact?))
(pass-if (not (inexact? 0)))
(pass-if (not (inexact? 7)))
(pass-if (not (inexact? -7)))
(pass-if (not (inexact? (+ 1 fixnum-max))))
(pass-if (not (inexact? (- 1 fixnum-min))))
(pass-if (inexact? 1.3))
(pass-if (inexact? 3.1+4.2i))
(pass-if-exception "char"
exception:wrong-type-arg
(not (inexact? #\a)))
(pass-if-exception "string"
exception:wrong-type-arg
(not (inexact? "a")))
(pass-if-exception "vector"
exception:wrong-type-arg
(not (inexact? (make-vector 0))))
(pass-if-exception "cons"
exception:wrong-type-arg
(not (inexact? (cons 1 2))))
(pass-if-exception "bool"
exception:wrong-type-arg
(not (inexact? #t)))
(pass-if-exception "procedure"
exception:wrong-type-arg
(not (inexact? (lambda () #t))))
(pass-if-exception "port"
exception:wrong-type-arg
(not (inexact? (current-input-port)))))
;;;
;;; equal?
;;;
(with-test-prefix "equal?"
(pass-if (documented? equal?))
(pass-if (equal? 0 0))
(pass-if (equal? 7 7))
(pass-if (equal? -7 -7))
(pass-if (equal? (+ 1 fixnum-max) (+ 1 fixnum-max)))
(pass-if (equal? (- fixnum-min 1) (- fixnum-min 1)))
(pass-if (not (equal? 0 1)))
(pass-if (not (equal? fixnum-max (+ 1 fixnum-max))))
(pass-if (not (equal? (+ 1 fixnum-max) fixnum-max)))
(pass-if (not (equal? (+ 1 fixnum-max) (+ 2 fixnum-max))))
(pass-if (not (equal? fixnum-min (- fixnum-min 1))))
(pass-if (not (equal? (- fixnum-min 1) fixnum-min)))
(pass-if (not (equal? (- fixnum-min 1) (- fixnum-min 2))))
(pass-if (not (equal? (+ fixnum-max 1) (- fixnum-min 1))))
(pass-if (not (equal? (ash 1 256) +inf.0)))
(pass-if (not (equal? +inf.0 (ash 1 256))))
(pass-if (not (equal? (ash 1 256) -inf.0)))
(pass-if (not (equal? -inf.0 (ash 1 256))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
;; sure we've avoided that
(pass-if (not (equal? (ash 1 1024) +inf.0)))
(pass-if (not (equal? +inf.0 (ash 1 1024))))
(pass-if (not (equal? (- (ash 1 1024)) -inf.0)))
(pass-if (not (equal? -inf.0 (- (ash 1 1024)))))
(pass-if (not (equal? +nan.0 +nan.0)))
(pass-if (not (equal? 0 +nan.0)))
(pass-if (not (equal? +nan.0 0)))
(pass-if (not (equal? 1 +nan.0)))
(pass-if (not (equal? +nan.0 1)))
(pass-if (not (equal? -1 +nan.0)))
(pass-if (not (equal? +nan.0 -1)))
(pass-if (not (equal? (ash 1 256) +nan.0)))
(pass-if (not (equal? +nan.0 (ash 1 256))))
(pass-if (not (equal? (- (ash 1 256)) +nan.0)))
(pass-if (not (equal? +nan.0 (- (ash 1 256)))))
(pass-if (not (equal? (ash 1 8192) +nan.0)))
(pass-if (not (equal? +nan.0 (ash 1 8192))))
(pass-if (not (equal? (- (ash 1 8192)) +nan.0)))
(pass-if (not (equal? +nan.0 (- (ash 1 8192)))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
;; sure we've avoided that
(pass-if (not (equal? (ash 3 1023) +nan.0)))
(pass-if (not (equal? +nan.0 (ash 3 1023)))))
;;;
;;; =
;;;
(with-test-prefix "="
(expect-fail (documented? =))
(pass-if (= 0 0))
(pass-if (= 7 7))
(pass-if (= -7 -7))
(pass-if (= (+ 1 fixnum-max) (+ 1 fixnum-max)))
(pass-if (= (- fixnum-min 1) (- fixnum-min 1)))
(pass-if (not (= 0 1)))
(pass-if (not (= fixnum-max (+ 1 fixnum-max))))
(pass-if (not (= (+ 1 fixnum-max) fixnum-max)))
(pass-if (not (= (+ 1 fixnum-max) (+ 2 fixnum-max))))
(pass-if (not (= fixnum-min (- fixnum-min 1))))
(pass-if (not (= (- fixnum-min 1) fixnum-min)))
(pass-if (not (= (- fixnum-min 1) (- fixnum-min 2))))
(pass-if (not (= (+ fixnum-max 1) (- fixnum-min 1))))
(pass-if (not (= (ash 1 256) +inf.0)))
(pass-if (not (= +inf.0 (ash 1 256))))
(pass-if (not (= (ash 1 256) -inf.0)))
(pass-if (not (= -inf.0 (ash 1 256))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
;; sure we've avoided that
(pass-if (not (= (ash 1 1024) +inf.0)))
(pass-if (not (= +inf.0 (ash 1 1024))))
(pass-if (not (= (- (ash 1 1024)) -inf.0)))
(pass-if (not (= -inf.0 (- (ash 1 1024)))))
(pass-if (not (= +nan.0 +nan.0)))
(pass-if (not (= 0 +nan.0)))
(pass-if (not (= +nan.0 0)))
(pass-if (not (= 1 +nan.0)))
(pass-if (not (= +nan.0 1)))
(pass-if (not (= -1 +nan.0)))
(pass-if (not (= +nan.0 -1)))
(pass-if (not (= (ash 1 256) +nan.0)))
(pass-if (not (= +nan.0 (ash 1 256))))
(pass-if (not (= (- (ash 1 256)) +nan.0)))
(pass-if (not (= +nan.0 (- (ash 1 256)))))
(pass-if (not (= (ash 1 8192) +nan.0)))
(pass-if (not (= +nan.0 (ash 1 8192))))
(pass-if (not (= (- (ash 1 8192)) +nan.0)))
(pass-if (not (= +nan.0 (- (ash 1 8192)))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
;; sure we've avoided that
(pass-if (not (= (ash 3 1023) +nan.0)))
(pass-if (not (= +nan.0 (ash 3 1023))))
(pass-if (= 1/2 0.5))
(pass-if (not (= 1/3 0.333333333333333333333333333333333)))
(pass-if (not (= 2/3 0.5)))
(pass-if (not (= 0.5 (+ 1/2 (/ 1 (ash 1 1000))))))
(pass-if (= 1/2 0.5+0i))
(pass-if (not (= 0.333333333333333333333333333333333 1/3)))
(pass-if (not (= 2/3 0.5+0i)))
(pass-if (not (= 1/2 0+0.5i)))
(pass-if (= 0.5 1/2))
(pass-if (not (= 0.5 2/3)))
(pass-if (not (= (+ 1/2 (/ 1 (ash 1 1000))) 0.5)))
(pass-if (= 0.5+0i 1/2))
(pass-if (not (= 0.5+0i 2/3)))
(pass-if (not (= 0+0.5i 1/2))))
;;;
;;; <
;;;
(with-test-prefix "<"
(expect-fail "documented?"
(documented? <))
(with-test-prefix "(< 0 n)"
(pass-if "n = 0"
(not (< 0 0)))
(pass-if "n = 0.0"
(not (< 0 0.0)))
(pass-if "n = 1"
(< 0 1))
(pass-if "n = 1.0"
(< 0 1.0))
(pass-if "n = -1"
(not (< 0 -1)))
(pass-if "n = -1.0"
(not (< 0 -1.0)))
(pass-if "n = fixnum-max"
(< 0 fixnum-max))
(pass-if "n = fixnum-max + 1"
(< 0 (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(not (< 0 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< 0 (- fixnum-min 1)))))
(with-test-prefix "(< 0.0 n)"
(pass-if "n = 0"
(not (< 0.0 0)))
(pass-if "n = 0.0"
(not (< 0.0 0.0)))
(pass-if "n = 1"
(< 0.0 1))
(pass-if "n = 1.0"
(< 0.0 1.0))
(pass-if "n = -1"
(not (< 0.0 -1)))
(pass-if "n = -1.0"
(not (< 0.0 -1.0)))
(pass-if "n = fixnum-max"
(< 0.0 fixnum-max))
(pass-if "n = fixnum-max + 1"
(< 0.0 (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(not (< 0.0 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< 0.0 (- fixnum-min 1)))))
(with-test-prefix "(< 1 n)"
(pass-if "n = 0"
(not (< 1 0)))
(pass-if "n = 0.0"
(not (< 1 0.0)))
(pass-if "n = 1"
(not (< 1 1)))
(pass-if "n = 1.0"
(not (< 1 1.0)))
(pass-if "n = -1"
(not (< 1 -1)))
(pass-if "n = -1.0"
(not (< 1 -1.0)))
(pass-if "n = fixnum-max"
(< 1 fixnum-max))
(pass-if "n = fixnum-max + 1"
(< 1 (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(not (< 1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< 1 (- fixnum-min 1)))))
(with-test-prefix "(< 1.0 n)"
(pass-if "n = 0"
(not (< 1.0 0)))
(pass-if "n = 0.0"
(not (< 1.0 0.0)))
(pass-if "n = 1"
(not (< 1.0 1)))
(pass-if "n = 1.0"
(not (< 1.0 1.0)))
(pass-if "n = -1"
(not (< 1.0 -1)))
(pass-if "n = -1.0"
(not (< 1.0 -1.0)))
(pass-if "n = fixnum-max"
(< 1.0 fixnum-max))
(pass-if "n = fixnum-max + 1"
(< 1.0 (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(not (< 1.0 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< 1.0 (- fixnum-min 1)))))
(with-test-prefix "(< -1 n)"
(pass-if "n = 0"
(< -1 0))
(pass-if "n = 0.0"
(< -1 0.0))
(pass-if "n = 1"
(< -1 1))
(pass-if "n = 1.0"
(< -1 1.0))
(pass-if "n = -1"
(not (< -1 -1)))
(pass-if "n = -1.0"
(not (< -1 -1.0)))
(pass-if "n = fixnum-max"
(< -1 fixnum-max))
(pass-if "n = fixnum-max + 1"
(< -1 (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(not (< -1 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< -1 (- fixnum-min 1)))))
(with-test-prefix "(< -1.0 n)"
(pass-if "n = 0"
(< -1.0 0))
(pass-if "n = 0.0"
(< -1.0 0.0))
(pass-if "n = 1"
(< -1.0 1))
(pass-if "n = 1.0"
(< -1.0 1.0))
(pass-if "n = -1"
(not (< -1.0 -1)))
(pass-if "n = -1.0"
(not (< -1.0 -1.0)))
(pass-if "n = fixnum-max"
(< -1.0 fixnum-max))
(pass-if "n = fixnum-max + 1"
(< -1.0 (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(not (< -1.0 fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< -1.0 (- fixnum-min 1)))))
(with-test-prefix "(< fixnum-max n)"
(pass-if "n = 0"
(not (< fixnum-max 0)))
(pass-if "n = 0.0"
(not (< fixnum-max 0.0)))
(pass-if "n = 1"
(not (< fixnum-max 1)))
(pass-if "n = 1.0"
(not (< fixnum-max 1.0)))
(pass-if "n = -1"
(not (< fixnum-max -1)))
(pass-if "n = -1.0"
(not (< fixnum-max -1.0)))
(pass-if "n = fixnum-max"
(not (< fixnum-max fixnum-max)))
(pass-if "n = fixnum-max + 1"
(< fixnum-max (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(not (< fixnum-max fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< fixnum-max (- fixnum-min 1)))))
(with-test-prefix "(< (+ fixnum-max 1) n)"
(pass-if "n = 0"
(not (< (+ fixnum-max 1) 0)))
(pass-if "n = 0.0"
(not (< (+ fixnum-max 1) 0.0)))
(pass-if "n = 1"
(not (< (+ fixnum-max 1) 1)))
(pass-if "n = 1.0"
(not (< (+ fixnum-max 1) 1.0)))
(pass-if "n = -1"
(not (< (+ fixnum-max 1) -1)))
(pass-if "n = -1.0"
(not (< (+ fixnum-max 1) -1.0)))
(pass-if "n = fixnum-max"
(not (< (+ fixnum-max 1) fixnum-max)))
(pass-if "n = fixnum-max + 1"
(not (< (+ fixnum-max 1) (+ fixnum-max 1))))
(pass-if "n = fixnum-min"
(not (< (+ fixnum-max 1) fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< (+ fixnum-max 1) (- fixnum-min 1)))))
(with-test-prefix "(< fixnum-min n)"
(pass-if "n = 0"
(< fixnum-min 0))
(pass-if "n = 0.0"
(< fixnum-min 0.0))
(pass-if "n = 1"
(< fixnum-min 1))
(pass-if "n = 1.0"
(< fixnum-min 1.0))
(pass-if "n = -1"
(< fixnum-min -1))
(pass-if "n = -1.0"
(< fixnum-min -1.0))
(pass-if "n = fixnum-max"
(< fixnum-min fixnum-max))
(pass-if "n = fixnum-max + 1"
(< fixnum-min (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(not (< fixnum-min fixnum-min)))
(pass-if "n = fixnum-min - 1"
(not (< fixnum-min (- fixnum-min 1)))))
(with-test-prefix "(< (- fixnum-min 1) n)"
(pass-if "n = 0"
(< (- fixnum-min 1) 0))
(pass-if "n = 0.0"
(< (- fixnum-min 1) 0.0))
(pass-if "n = 1"
(< (- fixnum-min 1) 1))
(pass-if "n = 1.0"
(< (- fixnum-min 1) 1.0))
(pass-if "n = -1"
(< (- fixnum-min 1) -1))
(pass-if "n = -1.0"
(< (- fixnum-min 1) -1.0))
(pass-if "n = fixnum-max"
(< (- fixnum-min 1) fixnum-max))
(pass-if "n = fixnum-max + 1"
(< (- fixnum-min 1) (+ fixnum-max 1)))
(pass-if "n = fixnum-min"
(< (- fixnum-min 1) fixnum-min))
(pass-if "n = fixnum-min - 1"
(not (< (- fixnum-min 1) (- fixnum-min 1)))))
(pass-if (< (ash 1 256) +inf.0))
(pass-if (not (< +inf.0 (ash 1 256))))
(pass-if (not (< (ash 1 256) -inf.0)))
(pass-if (< -inf.0 (ash 1 256)))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
;; sure we've avoided that
(pass-if (< (1- (ash 1 1024)) +inf.0))
(pass-if (< (ash 1 1024) +inf.0))
(pass-if (< (1+ (ash 1 1024)) +inf.0))
(pass-if (not (< +inf.0 (1- (ash 1 1024)))))
(pass-if (not (< +inf.0 (ash 1 1024))))
(pass-if (not (< +inf.0 (1+ (ash 1 1024)))))
(pass-if (< -inf.0 (- (1- (ash 1 1024)))))
(pass-if (< -inf.0 (- (ash 1 1024))))
(pass-if (< -inf.0 (- (1+ (ash 1 1024)))))
(pass-if (not (< (- (1- (ash 1 1024))) -inf.0)))
(pass-if (not (< (- (ash 1 1024)) -inf.0)))
(pass-if (not (< (- (1+ (ash 1 1024))) -inf.0)))
(pass-if (not (< +nan.0 +nan.0)))
(pass-if (not (< 0 +nan.0)))
(pass-if (not (< +nan.0 0)))
(pass-if (not (< 1 +nan.0)))
(pass-if (not (< +nan.0 1)))
(pass-if (not (< -1 +nan.0)))
(pass-if (not (< +nan.0 -1)))
(pass-if (not (< (ash 1 256) +nan.0)))
(pass-if (not (< +nan.0 (ash 1 256))))
(pass-if (not (< (- (ash 1 256)) +nan.0)))
(pass-if (not (< +nan.0 (- (ash 1 256)))))
(pass-if (not (< (ash 1 8192) +nan.0)))
(pass-if (not (< +nan.0 (ash 1 8192))))
(pass-if (not (< (- (ash 1 8192)) +nan.0)))
(pass-if (not (< +nan.0 (- (ash 1 8192)))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
;; sure we've avoided that
(pass-if (not (< (ash 3 1023) +nan.0)))
(pass-if (not (< (1+ (ash 3 1023)) +nan.0)))
(pass-if (not (< (1- (ash 3 1023)) +nan.0)))
(pass-if (not (< +nan.0 (ash 3 1023))))
(pass-if (not (< +nan.0 (1+ (ash 3 1023)))))
(pass-if (not (< +nan.0 (1- (ash 3 1023)))))
(with-test-prefix "inum/frac"
(pass-if (< 2 9/4))
(pass-if (< -2 9/4))
(pass-if (< -2 7/4))
(pass-if (< -2 -7/4))
(pass-if (eq? #f (< 2 7/4)))
(pass-if (eq? #f (< 2 -7/4)))
(pass-if (eq? #f (< 2 -9/4)))
(pass-if (eq? #f (< -2 -9/4))))
(with-test-prefix "bignum/frac"
(let ((x (ash 1 2048)))
(pass-if (< x (* 4/3 x)))
(pass-if (< (- x) (* 4/3 x)))
(pass-if (< (- x) (* 2/3 x)))
(pass-if (< (- x) (* -2/3 x)))
(pass-if (eq? #f (< x (* 2/3 x))))
(pass-if (eq? #f (< x (* -2/3 x))))
(pass-if (eq? #f (< x (* -4/3 x))))
(pass-if (eq? #f (< (- x) (* -4/3 x))))))
(with-test-prefix "flonum/frac"
(pass-if (< 0.75 4/3))
(pass-if (< -0.75 4/3))
(pass-if (< -0.75 2/3))
(pass-if (< -0.75 -2/3))
(pass-if (eq? #f (< 0.75 2/3)))
(pass-if (eq? #f (< 0.75 -2/3)))
(pass-if (eq? #f (< 0.75 -4/3)))
(pass-if (eq? #f (< -0.75 -4/3)))
(pass-if (< -inf.0 4/3))
(pass-if (< -inf.0 -4/3))
(pass-if (eq? #f (< +inf.0 4/3)))
(pass-if (eq? #f (< +inf.0 -4/3)))
(pass-if (eq? #f (< +nan.0 4/3)))
(pass-if (eq? #f (< +nan.0 -4/3))))
(with-test-prefix "frac/inum"
(pass-if (< 7/4 2))
(pass-if (< -7/4 2))
(pass-if (< -9/4 2))
(pass-if (< -9/4 -2))
(pass-if (eq? #f (< 9/4 2)))
(pass-if (eq? #f (< 9/4 -2)))
(pass-if (eq? #f (< 7/4 -2)))
(pass-if (eq? #f (< -7/4 -2))))
(with-test-prefix "frac/bignum"
(let ((x (ash 1 2048)))
(pass-if (< (* 2/3 x) x))
(pass-if (< (* -2/3 x) x))
(pass-if (< (* -4/3 x) x))
(pass-if (< (* -4/3 x) (- x)))
(pass-if (eq? #f (< (* 4/3 x) x)))
(pass-if (eq? #f (< (* 4/3 x) (- x))))
(pass-if (eq? #f (< (* 2/3 x) (- x))))
(pass-if (eq? #f (< (* -2/3 x) (- x))))))
(with-test-prefix "frac/flonum"
(pass-if (< 2/3 0.75))
(pass-if (< -2/3 0.75))
(pass-if (< -4/3 0.75))
(pass-if (< -4/3 -0.75))
(pass-if (eq? #f (< 4/3 0.75)))
(pass-if (eq? #f (< 4/3 -0.75)))
(pass-if (eq? #f (< 2/3 -0.75)))
(pass-if (eq? #f (< -2/3 -0.75)))
(pass-if (< 4/3 +inf.0))
(pass-if (< -4/3 +inf.0))
(pass-if (eq? #f (< 4/3 -inf.0)))
(pass-if (eq? #f (< -4/3 -inf.0)))
(pass-if (eq? #f (< 4/3 +nan.0)))
(pass-if (eq? #f (< -4/3 +nan.0))))
(with-test-prefix "frac/frac"
(pass-if (< 2/3 6/7))
(pass-if (< -2/3 6/7))
(pass-if (< -4/3 6/7))
(pass-if (< -4/3 -6/7))
(pass-if (eq? #f (< 4/3 6/7)))
(pass-if (eq? #f (< 4/3 -6/7)))
(pass-if (eq? #f (< 2/3 -6/7)))
(pass-if (eq? #f (< -2/3 -6/7)))))
;;;
;;; >
;;;
;; currently not tested -- implementation is trivial
;; (> x y) is implemented as (< y x)
;; FIXME: tests should probably be added in case we change implementation.
;;;
;;; <=
;;;
;; currently not tested -- implementation is trivial
;; (<= x y) is implemented as (not (< y x))
;; FIXME: tests should probably be added in case we change implementation.
;;;
;;; >=
;;;
;; currently not tested -- implementation is trivial
;; (>= x y) is implemented as (not (< x y))
;; FIXME: tests should probably be added in case we change implementation.
;;;
;;; zero?
;;;
(with-test-prefix "zero?"
(expect-fail (documented? zero?))
(pass-if (zero? 0))
(pass-if (not (zero? 7)))
(pass-if (not (zero? -7)))
(pass-if (not (zero? (+ 1 fixnum-max))))
(pass-if (not (zero? (- 1 fixnum-min))))
(pass-if (not (zero? 1.3)))
(pass-if (not (zero? 3.1+4.2i))))
;;;
;;; positive?
;;;
(with-test-prefix "positive?"
(expect-fail (documented? positive?))
(pass-if (positive? 1))
(pass-if (positive? (+ fixnum-max 1)))
(pass-if (positive? 1.3))
(pass-if (not (positive? 0)))
(pass-if (not (positive? -1)))
(pass-if (not (positive? (- fixnum-min 1))))
(pass-if (not (positive? -1.3))))
;;;
;;; negative?
;;;
(with-test-prefix "negative?"
(expect-fail (documented? negative?))
(pass-if (not (negative? 1)))
(pass-if (not (negative? (+ fixnum-max 1))))
(pass-if (not (negative? 1.3)))
(pass-if (not (negative? 0)))
(pass-if (negative? -1))
(pass-if (negative? (- fixnum-min 1)))
(pass-if (negative? -1.3)))
;;;
;;; max
;;;
(with-test-prefix "max"
(pass-if-exception "no args" exception:wrong-num-args
(max))
(pass-if-exception "one complex" exception:wrong-type-arg
(max 1+i))
(pass-if-exception "inum/complex" exception:wrong-type-arg
(max 123 1+i))
(pass-if-exception "big/complex" exception:wrong-type-arg
(max 9999999999999999999999999999999999999999 1+i))
(pass-if-exception "real/complex" exception:wrong-type-arg
(max 123.0 1+i))
(pass-if-exception "frac/complex" exception:wrong-type-arg
(max 123/456 1+i))
(pass-if-exception "complex/inum" exception:wrong-type-arg
(max 1+i 123))
(pass-if-exception "complex/big" exception:wrong-type-arg
(max 1+i 9999999999999999999999999999999999999999))
(pass-if-exception "complex/real" exception:wrong-type-arg
(max 1+i 123.0))
(pass-if-exception "complex/frac" exception:wrong-type-arg
(max 1+i 123/456))
(let ((big*2 (* fixnum-max 2))
(big*3 (* fixnum-max 3))
(big*4 (* fixnum-max 4))
(big*5 (* fixnum-max 5)))
(with-test-prefix "inum / frac"
(pass-if (= 3 (max 3 5/2)))
(pass-if (= 5/2 (max 2 5/2))))
(with-test-prefix "frac / inum"
(pass-if (= 3 (max 5/2 3)))
(pass-if (= 5/2 (max 5/2 2))))
(with-test-prefix "inum / real"
(pass-if (nan? (max 123 +nan.0))))
(with-test-prefix "real / inum"
(pass-if (nan? (max +nan.0 123))))
(with-test-prefix "big / frac"
(pass-if (= big*2 (max big*2 5/2)))
(pass-if (= 5/2 (max (- big*2) 5/2))))
(with-test-prefix "frac / big"
(pass-if (= big*2 (max 5/2 big*2)))
(pass-if (= 5/2 (max 5/2 (- big*2)))))
(with-test-prefix "big / real"
(pass-if (nan? (max big*5 +nan.0)))
(pass-if (= big*5 (max big*5 -inf.0)))
(pass-if (= +inf.0 (max big*5 +inf.0)))
(pass-if (= 1.0 (max (- big*5) 1.0)))
(pass-if (inexact? (max big*5 1.0)))
(pass-if (= (exact->inexact big*5) (max big*5 1.0))))
(with-test-prefix "real / big"
(pass-if (nan? (max +nan.0 big*5)))
(pass-if (= +inf.0 (max +inf.0 big*5)))
(pass-if (= big*5 (max -inf.0 big*5)))
(pass-if (= 1.0 (max 1.0 (- big*5))))
(pass-if (inexact? (max 1.0 big*5)))
(pass-if (= (exact->inexact big*5) (max 1.0 big*5))))
(with-test-prefix "frac / frac"
(pass-if (= 2/3 (max 1/2 2/3)))
(pass-if (= 2/3 (max 2/3 1/2)))
(pass-if (= -1/2 (max -1/2 -2/3)))
(pass-if (= -1/2 (max -2/3 -1/2))))
(with-test-prefix "real / real"
(pass-if (nan? (max 123.0 +nan.0)))
(pass-if (nan? (max +nan.0 123.0)))
(pass-if (nan? (max +nan.0 +nan.0)))
(pass-if (= 456.0 (max 123.0 456.0)))
(pass-if (= 456.0 (max 456.0 123.0)))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
;; sure we've avoided that
(for-each (lambda (b)
(pass-if (list b +inf.0)
(= +inf.0 (max b +inf.0)))
(pass-if (list +inf.0 b)
(= +inf.0 (max b +inf.0)))
(pass-if (list b -inf.0)
(= (exact->inexact b) (max b -inf.0)))
(pass-if (list -inf.0 b)
(= (exact->inexact b) (max b -inf.0))))
(list (1- (ash 1 1024))
(ash 1 1024)
(1+ (ash 1 1024))
(- (1- (ash 1 1024)))
(- (ash 1 1024))
(- (1+ (ash 1 1024)))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
;; sure we've avoided that
(pass-if (nan? (max (ash 1 2048) +nan.0)))
(pass-if (nan? (max +nan.0 (ash 1 2048)))))
;;;
;;; min
;;;
;; FIXME: unfinished...
(with-test-prefix "min"
(pass-if-exception "no args" exception:wrong-num-args
(min))
(pass-if-exception "one complex" exception:wrong-type-arg
(min 1+i))
(pass-if-exception "inum/complex" exception:wrong-type-arg
(min 123 1+i))
(pass-if-exception "big/complex" exception:wrong-type-arg
(min 9999999999999999999999999999999999999999 1+i))
(pass-if-exception "real/complex" exception:wrong-type-arg
(min 123.0 1+i))
(pass-if-exception "frac/complex" exception:wrong-type-arg
(min 123/456 1+i))
(pass-if-exception "complex/inum" exception:wrong-type-arg
(min 1+i 123))
(pass-if-exception "complex/big" exception:wrong-type-arg
(min 1+i 9999999999999999999999999999999999999999))
(pass-if-exception "complex/real" exception:wrong-type-arg
(min 1+i 123.0))
(pass-if-exception "complex/frac" exception:wrong-type-arg
(min 1+i 123/456))
(let ((big*2 (* fixnum-max 2))
(big*3 (* fixnum-max 3))
(big*4 (* fixnum-max 4))
(big*5 (* fixnum-max 5)))
(expect-fail (documented? min))
(pass-if (= 1 (min 7 3 1 5)))
(pass-if (= 1 (min 1 7 3 5)))
(pass-if (= 1 (min 7 3 5 1)))
(pass-if (= -7 (min 2 3 4 -2 5 -7 1 -1 4 2)))
(pass-if (= -7 (min -7 2 3 4 -2 5 1 -1 4 2)))
(pass-if (= -7 (min 2 3 4 -2 5 1 -1 4 2 -7)))
(pass-if (= big*2 (min big*3 big*5 big*2 big*4)))
(pass-if (= big*2 (min big*2 big*3 big*5 big*4)))
(pass-if (= big*2 (min big*3 big*5 big*4 big*2)))
(pass-if
(= (- fixnum-min 1) (min 2 4 (- fixnum-min 1) 3 (* 2 fixnum-max))))
(pass-if
(= (- fixnum-min 1) (min (- fixnum-min 1) 2 4 3 (* 2 fixnum-max))))
(pass-if
(= (- fixnum-min 1) (min 2 4 3 (* 2 fixnum-max) (- fixnum-min 1))))
(with-test-prefix "inum / frac"
(pass-if (= 5/2 (min 3 5/2)))
(pass-if (= 2 (min 2 5/2))))
(with-test-prefix "frac / inum"
(pass-if (= 5/2 (min 5/2 3)))
(pass-if (= 2 (min 5/2 2))))
(with-test-prefix "inum / real"
(pass-if (nan? (min 123 +nan.0))))
(with-test-prefix "real / inum"
(pass-if (nan? (min +nan.0 123))))
(with-test-prefix "big / frac"
(pass-if (= 5/2 (min big*2 5/2)))
(pass-if (= (- big*2) (min (- big*2) 5/2))))
(with-test-prefix "frac / big"
(pass-if (= 5/2 (min 5/2 big*2)))
(pass-if (= (- big*2) (min 5/2 (- big*2)))))
(with-test-prefix "big / real"
(pass-if (nan? (min big*5 +nan.0)))
(pass-if (= big*5 (min big*5 +inf.0)))
(pass-if (= -inf.0 (min big*5 -inf.0)))
(pass-if (= 1.0 (min big*5 1.0)))
(pass-if (inexact? (min (- big*5) 1.0)))
(pass-if (= (exact->inexact (- big*5)) (min (- big*5) 1.0))))
(with-test-prefix "real / big"
(pass-if (nan? (min +nan.0 big*5)))
(pass-if (= big*5 (min +inf.0 big*5)))
(pass-if (= -inf.0 (min -inf.0 big*5)))
(pass-if (= 1.0 (min 1.0 big*5)))
(pass-if (inexact? (min 1.0 (- big*5))))
(pass-if (= (exact->inexact (- big*5)) (min 1.0 (- big*5)))))
(with-test-prefix "frac / frac"
(pass-if (= 1/2 (min 1/2 2/3)))
(pass-if (= 1/2 (min 2/3 1/2)))
(pass-if (= -2/3 (min -1/2 -2/3)))
(pass-if (= -2/3 (min -2/3 -1/2))))
(with-test-prefix "real / real"
(pass-if (nan? (min 123.0 +nan.0)))
(pass-if (nan? (min +nan.0 123.0)))
(pass-if (nan? (min +nan.0 +nan.0)))
(pass-if (= 123.0 (min 123.0 456.0)))
(pass-if (= 123.0 (min 456.0 123.0)))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating Inf as 2^1024, make
;; sure we've avoided that
(for-each (lambda (b)
(pass-if (list b +inf.0)
(= (exact->inexact b) (min b +inf.0)))
(pass-if (list +inf.0 b)
(= (exact->inexact b) (min b +inf.0)))
(pass-if (list b -inf.0)
(= -inf.0 (min b -inf.0)))
(pass-if (list -inf.0 b)
(= -inf.0 (min b -inf.0))))
(list (1- (ash 1 1024))
(ash 1 1024)
(1+ (ash 1 1024))
(- (1- (ash 1 1024)))
(- (ash 1 1024))
(- (1+ (ash 1 1024)))))
;; in gmp prior to 4.2, mpz_cmp_d ended up treating NaN as 3*2^1023, make
;; sure we've avoided that
(pass-if (nan? (min (- (ash 1 2048)) (- +nan.0))))
(pass-if (nan? (min (- +nan.0) (- (ash 1 2048))))))
;;;
;;; +
;;;
(with-test-prefix "+"
(expect-fail "documented?"
(documented? +))
(with-test-prefix "wrong type argument"
(pass-if-exception "1st argument string"
exception:wrong-type-arg
(+ "1" 2))
(pass-if-exception "2nd argument bool"
exception:wrong-type-arg
(+ 1 #f))))
;;;
;;; -
;;;
(with-test-prefix "-"
(pass-if "-inum - +bignum"
(= #x-100000000000000000000000000000001
(- -1 #x100000000000000000000000000000000)))
(pass-if "big - inum"
(= #xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
(- #x100000000000000000000000000000000 1)))
(pass-if "big - -inum"
(= #x100000000000000000000000000000001
(- #x100000000000000000000000000000000 -1))))
;;;
;;; *
;;;
(with-test-prefix "*"
(pass-if "complex * bignum"
(let ((big (ash 1 90)))
(= (make-rectangular big big)
(* 1+1i big)))))
;;;
;;; /
;;;
(with-test-prefix "/"
(expect-fail "documented?"
(documented? /))
(with-test-prefix "division by zero"
(pass-if-exception "(/ 0)"
exception:numerical-overflow
(/ 0))
(pass-if "(/ 0.0)"
(= +inf.0 (/ 0.0)))
(pass-if-exception "(/ 1 0)"
exception:numerical-overflow
(/ 1 0))
(pass-if "(/ 1 0.0)"
(= +inf.0 (/ 1 0.0)))
(pass-if-exception "(/ bignum 0)"
exception:numerical-overflow
(/ (+ fixnum-max 1) 0))
(pass-if "(/ bignum 0.0)"
(= +inf.0 (/ (+ fixnum-max 1) 0.0)))
(pass-if-exception "(/ 1.0 0)"
exception:numerical-overflow
(/ 1.0 0))
(pass-if "(/ 1.0 0.0)"
(= +inf.0 (/ 1.0 0.0)))
(pass-if-exception "(/ +i 0)"
exception:numerical-overflow
(/ +i 0))
(pass-if "(/ +i 0.0)"
(= +inf.0 (imag-part (/ +i 0.0)))))
(with-test-prefix "complex division"
(pass-if "(/ 3+4i)"
(= (/ 3+4i) 0.12-0.16i))
(pass-if "(/ 4+3i)"
(= (/ 4+3i) 0.16-0.12i))
(pass-if "(/ 25+125i 3+4i)"
(= (/ 25+125i 3+4i) 23.0+11.0i))
(pass-if "(/ 25+125i 4+3i)"
(= (/ 25+125i 4+3i) 19.0+17.0i))
(pass-if "(/ 25 3+4i)"
(= (/ 25 3+4i) 3.0-4.0i))
(pass-if "(/ 25 4+3i)"
(= (/ 25 4+3i) 4.0-3.0i))
(pass-if "(/ 1e200+1e200i)"
(= (/ 1e200+1e200i) 5.0e-201-5.0e-201i))))
;;;
;;; truncate
;;;
(with-test-prefix "truncate"
(pass-if (= 1 (truncate 1.75)))
(pass-if (= 1 (truncate 1.5)))
(pass-if (= 1 (truncate 1.25)))
(pass-if (= 0 (truncate 0.75)))
(pass-if (= 0 (truncate 0.5)))
(pass-if (= 0 (truncate 0.0)))
(pass-if (= 0 (truncate -0.5)))
(pass-if (= -1 (truncate -1.25)))
(pass-if (= -1 (truncate -1.5))))
;;;
;;; round
;;;
(with-test-prefix "round"
(pass-if (= 2 (round 1.75)))
(pass-if (= 2 (round 1.5)))
(pass-if (= 1 (round 1.25)))
(pass-if (= 1 (round 0.75)))
(pass-if (= 0 (round 0.5)))
(pass-if (= 0 (round 0.0)))
(pass-if (= 0 (round -0.5)))
(pass-if (= -1 (round -1.25)))
(pass-if (= -2 (round -1.5)))
(with-test-prefix "inum"
(pass-if "0"
(and (= 0 (round 0))
(exact? (round 0))))
(pass-if "1"
(and (= 1 (round 1))
(exact? (round 1))))
(pass-if "-1"
(and (= -1 (round -1))
(exact? (round -1)))))
(with-test-prefix "bignum"
(let ((x (1+ most-positive-fixnum)))
(pass-if "(1+ most-positive-fixnum)"
(and (= x (round x))
(exact? (round x)))))
(let ((x (1- most-negative-fixnum)))
(pass-if "(1- most-negative-fixnum)"
(and (= x (round x))
(exact? (round x))))))
(with-test-prefix "real"
(pass-if "0.0"
(and (= 0.0 (round 0.0))
(inexact? (round 0.0))))
(pass-if "1.0"
(and (= 1.0 (round 1.0))
(inexact? (round 1.0))))
(pass-if "-1.0"
(and (= -1.0 (round -1.0))
(inexact? (round -1.0))))
(pass-if "-3.1"
(and (= -3.0 (round -3.1))
(inexact? (round -3.1))))
(pass-if "3.1"
(and (= 3.0 (round 3.1))
(inexact? (round 3.1))))
(pass-if "3.9"
(and (= 4.0 (round 3.9))
(inexact? (round 3.9))))
(pass-if "-3.9"
(and (= -4.0 (round -3.9))
(inexact? (round -3.9))))
(pass-if "1.5"
(and (= 2.0 (round 1.5))
(inexact? (round 1.5))))
(pass-if "2.5"
(and (= 2.0 (round 2.5))
(inexact? (round 2.5))))
(pass-if "3.5"
(and (= 4.0 (round 3.5))
(inexact? (round 3.5))))
(pass-if "-1.5"
(and (= -2.0 (round -1.5))
(inexact? (round -1.5))))
(pass-if "-2.5"
(and (= -2.0 (round -2.5))
(inexact? (round -2.5))))
(pass-if "-3.5"
(and (= -4.0 (round -3.5))
(inexact? (round -3.5))))
;; prior to guile 1.6.5, on an IEEE system an inexact 2^53-1 (ie. a
;; float with mantissa all ones) came out as 2^53 from `round' (except
;; on i386 and m68k systems using the coprocessor and optimizing, where
;; extra precision hid the problem)
(pass-if "2^53-1"
(let ((x (exact->inexact (1- (ash 1 53)))))
(and (= x (round x))
(inexact? (round x)))))
(pass-if "-(2^53-1)"
(let ((x (exact->inexact (- (1- (ash 1 53))))))
(and (= x (round x))
(inexact? (round x)))))))
;;;
;;; exact->inexact
;;;
(with-test-prefix "exact->inexact"
;; Test "(exact->inexact n)", expect "want".
;; "i" is a index, for diagnostic purposes.
(define (try-i i n want)
(with-test-prefix (list i n want)
(with-test-prefix "pos"
(let ((got (exact->inexact n)))
(pass-if "inexact?" (inexact? got))
(pass-if (list "=" got) (= want got))))
(set! n (- n))
(set! want (- want))
(with-test-prefix "neg"
(let ((got (exact->inexact n)))
(pass-if "inexact?" (inexact? got))
(pass-if (list "=" got) (= want got))))))
(with-test-prefix "2^i, no round"
(do ((i 0 (1+ i))
(n 1 (* 2 n))
(want 1.0 (* 2.0 want)))
((> i 100))
(try-i i n want)))
(with-test-prefix "2^i+1, no round"
(do ((i 1 (1+ i))
(n 3 (1- (* 2 n)))
(want 3.0 (- (* 2.0 want) 1.0)))
((>= i dbl-mant-dig))
(try-i i n want)))
(with-test-prefix "(2^i+1)*2^100, no round"
(do ((i 1 (1+ i))
(n 3 (1- (* 2 n)))
(want 3.0 (- (* 2.0 want) 1.0)))
((>= i dbl-mant-dig))
(try-i i (ash n 100) (ash-flo want 100))))
;; bit pattern: 1111....11100.00
;; <-mantdig-><-i->
;;
(with-test-prefix "mantdig ones then zeros, no rounding"
(do ((i 0 (1+ i))
(n (- (ash 1 dbl-mant-dig) 1) (* 2 n))
(want (- (ash-flo 1.0 dbl-mant-dig) 1.0) (* 2.0 want)))
((> i 100))
(try-i i n want)))
;; bit pattern: 1111....111011..1
;; <-mantdig-> <-i->
;; This sort of value was incorrectly rounded upwards in Guile 1.6.4 when
;; i >= 11 (that's when the total is 65 or more bits).
;;
(with-test-prefix "mantdig ones then 011..11, round down"
(do ((i 0 (1+ i))
(n (- (ash 1 (+ 1 dbl-mant-dig)) 2) (+ 1 (* 2 n)))
(want (- (ash-flo 1.0 (+ 1 dbl-mant-dig)) 2.0) (* 2.0 want)))
((> i 100))
(try-i i n want)))
;; bit pattern: 1111....111100..001
;; <-mantdig-> <--i->
;;
(with-test-prefix "mantdig ones then 100..001, round up"
(do ((i 0 (1+ i))
(n (- (ash 1 (+ 2 dbl-mant-dig)) 1) (1- (* 2 n)))
(want (ash-flo 1.0 (+ 2 dbl-mant-dig)) (* 2.0 want)))
((> i 100))
(try-i i n want)))
;; bit pattern: 1000....000100..001
;; <-mantdig-> <--i->
;;
(with-test-prefix "2^mantdig then 100..001, round up"
(do ((i 0 (1+ i))
(n (- (ash 1 (+ 2 dbl-mant-dig)) 1) (1- (* 2 n)))
(want (+ (ash-flo 1.0 (+ 2 dbl-mant-dig)) 4.0) (* 2.0 want)))
((> i 100))
(try-i i n want))))
;;;
;;; floor
;;;
;;;
;;; ceiling
;;;
;;;
;;; expt
;;;
(with-test-prefix "expt"
(pass-if "(= 1 (expt 0 0))" (= 1 (expt 0 0)))
(pass-if "(= 1 (expt 0 0.0))" (= 1 (expt 0 0.0)))
(pass-if "(= 1 (expt 0.0 0))" (= 1 (expt 0.0 0)))
(pass-if "(= 1 (expt 0.0 0.0))" (= 1 (expt 0.0 0.0))))
;;;
;;; asinh
;;;
(with-test-prefix "asinh"
(pass-if (= 0 (asinh 0))))
;;;
;;; acosh
;;;
(with-test-prefix "acosh"
(pass-if (= 0 (acosh 1))))
;;;
;;; atanh
;;;
(with-test-prefix "atanh"
(pass-if (= 0 (atanh 0))))
;;;
;;; make-rectangular
;;;
;;;
;;; make-polar
;;;
(with-test-prefix "make-polar"
(define pi 3.14159265358979323846)
(define (almost= x y)
(> 0.01 (magnitude (- x y))))
(pass-if (= 0 (make-polar 0 0)))
(pass-if (= 0 (make-polar 0 123.456)))
(pass-if (= 1 (make-polar 1 0)))
(pass-if (= -1 (make-polar -1 0)))
(pass-if (almost= 0+i (make-polar 1 (* 0.5 pi))))
(pass-if (almost= -1 (make-polar 1 (* 1.0 pi))))
(pass-if (almost= 0-i (make-polar 1 (* 1.5 pi))))
(pass-if (almost= 1 (make-polar 1 (* 2.0 pi)))))
;;;
;;; real-part
;;;
;;;
;;; imag-part
;;;
;;;
;;; magnitude
;;;
(with-test-prefix "magnitude"
(pass-if (= 0 (magnitude 0)))
(pass-if (= 1 (magnitude 1)))
(pass-if (= 1 (magnitude -1)))
(pass-if (= 1 (magnitude 0+i)))
(pass-if (= 1 (magnitude 0-i)))
(pass-if (= 5 (magnitude 3+4i)))
(pass-if (= 5 (magnitude 3-4i)))
(pass-if (= 5 (magnitude -3+4i)))
(pass-if (= 5 (magnitude -3-4i))))
;;;
;;; angle
;;;
(with-test-prefix "angle"
(define pi 3.14159265358979323846)
(define (almost= x y)
(> 0.01 (magnitude (- x y))))
(pass-if "inum +ve" (= 0 (angle 1)))
(pass-if "inum -ve" (almost= pi (angle -1)))
(pass-if "bignum +ve" (= 0 (angle (1+ fixnum-max))))
(pass-if "bignum -ve" (almost= pi (angle (1- fixnum-min))))
(pass-if "flonum +ve" (= 0 (angle 1.5)))
(pass-if "flonum -ve" (almost= pi (angle -1.5))))
;;;
;;; inexact->exact
;;;
(with-test-prefix "inexact->exact"
(pass-if-exception "+inf" exception:out-of-range
(inexact->exact +inf.0))
(pass-if-exception "-inf" exception:out-of-range
(inexact->exact -inf.0))
(pass-if-exception "nan" exception:out-of-range
(inexact->exact +nan.0))
(with-test-prefix "2.0**i to exact and back"
(do ((i 0 (1+ i))
(n 1.0 (* 2.0 n)))
((> i 100))
(pass-if (list i n)
(= n (inexact->exact (exact->inexact n)))))))
;;;
;;; integer-expt
;;;
(with-test-prefix "integer-expt"
(pass-if-exception "2^+inf" exception:wrong-type-arg
(integer-expt 2 +inf.0))
(pass-if-exception "2^-inf" exception:wrong-type-arg
(integer-expt 2 -inf.0))
(pass-if-exception "2^nan" exception:wrong-type-arg
(integer-expt 2 +nan.0)))
;;;
;;; integer-length
;;;
(with-test-prefix "integer-length"
(with-test-prefix "-2^i, ...11100..00"
(do ((n -1 (ash n 1))
(i 0 (1+ i)))
((> i 256))
(pass-if (list n "expect" i)
(= i (integer-length n)))))
(with-test-prefix "-2^i+1 ...11100..01"
(do ((n -3 (logxor 3 (ash n 1)))
(i 2 (1+ i)))
((> i 256))
(pass-if n
(= i (integer-length n)))))
(with-test-prefix "-2^i-1 ...111011..11"
(do ((n -2 (1+ (ash n 1)))
(i 1 (1+ i)))
((> i 256))
(pass-if n
(= i (integer-length n))))))
;;;
;;; logbit?
;;;
(with-test-prefix "logbit?"
(pass-if (eq? #f (logbit? 0 0)))
(pass-if (eq? #f (logbit? 1 0)))
(pass-if (eq? #f (logbit? 31 0)))
(pass-if (eq? #f (logbit? 32 0)))
(pass-if (eq? #f (logbit? 33 0)))
(pass-if (eq? #f (logbit? 63 0)))
(pass-if (eq? #f (logbit? 64 0)))
(pass-if (eq? #f (logbit? 65 0)))
;; prior to guile 1.6.5, testing bit 32, 64 etc of value 1 would wrap
;; around and return #t where it ought to be #f
(pass-if (eq? #t (logbit? 0 1)))
(pass-if (eq? #f (logbit? 1 1)))
(pass-if (eq? #f (logbit? 31 1)))
(pass-if (eq? #f (logbit? 32 1)))
(pass-if (eq? #f (logbit? 33 1)))
(pass-if (eq? #f (logbit? 63 1)))
(pass-if (eq? #f (logbit? 64 1)))
(pass-if (eq? #f (logbit? 65 1)))
(pass-if (eq? #f (logbit? 128 1)))
(pass-if (eq? #t (logbit? 0 -1)))
(pass-if (eq? #t (logbit? 1 -1)))
(pass-if (eq? #t (logbit? 31 -1)))
(pass-if (eq? #t (logbit? 32 -1)))
(pass-if (eq? #t (logbit? 33 -1)))
(pass-if (eq? #t (logbit? 63 -1)))
(pass-if (eq? #t (logbit? 64 -1)))
(pass-if (eq? #t (logbit? 65 -1))))
;;;
;;; logcount
;;;
(with-test-prefix "logcount"
(with-test-prefix "-2^i, meaning ...11100..00"
(do ((n -1 (ash n 1))
(i 0 (1+ i)))
((> i 256))
(pass-if n
(= i (logcount n)))))
(with-test-prefix "2^i"
(do ((n 1 (ash n 1))
(i 0 (1+ i)))
((> i 256))
(pass-if n
(= 1 (logcount n)))))
(with-test-prefix "2^i-1"
(do ((n 0 (1+ (ash n 1)))
(i 0 (1+ i)))
((> i 256))
(pass-if n
(= i (logcount n))))))
;;;
;;; lognot
;;;
(with-test-prefix "lognot"
(pass-if (= -1 (lognot 0)))
(pass-if (= 0 (lognot -1)))
(pass-if (= -2 (lognot 1)))
(pass-if (= 1 (lognot -2)))
(pass-if (= #x-100000000000000000000000000000000
(lognot #xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)))
(pass-if (= #xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
(lognot #x-100000000000000000000000000000000))))
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