1 ;;;; floating-point-related tests with no side effects
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; While most of SBCL is derived from the CMU CL system, the test
7 ;;;; files (like this one) were written from scratch after the fork
10 ;;;; This software is in the public domain and is provided with
11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
12 ;;;; more information.
14 (cl:in-package :cl-user)
16 (dolist (ifnis (list (cons single-float-positive-infinity
17 single-float-negative-infinity)
18 (cons double-float-positive-infinity
19 double-float-negative-infinity)))
20 (destructuring-bind (+ifni . -ifni) ifnis
21 (assert (= (* +ifni 1) +ifni))
22 (assert (= (* +ifni -0.1) -ifni))
23 (assert (= (+ +ifni -0.1) +ifni))
24 (assert (= (- +ifni -0.1) +ifni))
25 (assert (= (sqrt +ifni) +ifni))
26 (assert (= (* -ifni -14) +ifni))
27 (assert (= (/ -ifni 0.1) -ifni))
28 (assert (= (/ -ifni 100/3) -ifni))
29 (assert (not (= +ifni -ifni)))
30 (assert (= -ifni -ifni))
31 (assert (not (= +ifni 100/3)))
32 (assert (not (= -ifni -1.0 -ifni)))
33 (assert (not (= -ifni -17/02 -ifni)))
34 (assert (< -ifni +ifni))
35 (assert (not (< +ifni 100)))
36 (assert (not (< +ifni 100.0)))
37 (assert (not (< +ifni -ifni)))
38 (assert (< 100 +ifni))
39 (assert (< 100.0 +ifni))
40 (assert (>= 100 -ifni))
41 (assert (not (<= 6/7 (* 3 -ifni))))
42 (assert (not (> +ifni +ifni)))))
44 ;;; ANSI: FLOAT-RADIX should signal an error if its argument is not a
47 ;;; (Peter Van Eynde's ansi-test suite caught this, and Eric Marsden
48 ;;; reported a fix for CMU CL, which was ported to sbcl-0.6.12.35.)
49 (assert (typep (nth-value 1 (ignore-errors (float-radix "notfloat")))
52 (assert (typep (nth-value 1 (ignore-errors
53 (funcall (fdefinition 'float-radix) "notfloat")))