1------------------------------------------------------------------------
2-- ddMinus.decTest -- decDouble 0-x                                   --
3-- Copyright (c) IBM Corporation, 1981, 2008.  All rights reserved.   --
4------------------------------------------------------------------------
5-- Please see the document "General Decimal Arithmetic Testcases"     --
6-- at http://www2.hursley.ibm.com/decimal for the description of      --
7-- these testcases.                                                   --
8--                                                                    --
9-- These testcases are experimental ('beta' versions), and they       --
10-- may contain errors.  They are offered on an as-is basis.  In       --
11-- particular, achieving the same results as the tests here is not    --
12-- a guarantee that an implementation complies with any Standard      --
13-- or specification.  The tests are not exhaustive.                   --
14--                                                                    --
15-- Please send comments, suggestions, and corrections to the author:  --
16--   Mike Cowlishaw, IBM Fellow                                       --
17--   IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK         --
18--   mfc@uk.ibm.com                                                   --
19------------------------------------------------------------------------
20version: 2.59
21
22-- All operands and results are decDoubles.
23precision:   16
24maxExponent: 384
25minExponent: -383
26extended:    1
27clamp:       1
28rounding:    half_even
29
30-- Sanity check
31ddmns001 minus       +7.50  -> -7.50
32
33-- Infinities
34ddmns011 minus  Infinity    -> -Infinity
35ddmns012 minus  -Infinity   -> Infinity
36
37-- NaNs, 0 payload
38ddmns021 minus         NaN  -> NaN
39ddmns022 minus        -NaN  -> -NaN
40ddmns023 minus        sNaN  -> NaN  Invalid_operation
41ddmns024 minus       -sNaN  -> -NaN Invalid_operation
42
43-- NaNs, non-0 payload
44ddmns031 minus       NaN13  -> NaN13
45ddmns032 minus      -NaN13  -> -NaN13
46ddmns033 minus      sNaN13  -> NaN13   Invalid_operation
47ddmns034 minus     -sNaN13  -> -NaN13  Invalid_operation
48ddmns035 minus       NaN70  -> NaN70
49ddmns036 minus      -NaN70  -> -NaN70
50ddmns037 minus      sNaN101 -> NaN101  Invalid_operation
51ddmns038 minus     -sNaN101 -> -NaN101 Invalid_operation
52
53-- finites
54ddmns101 minus          7   -> -7
55ddmns102 minus         -7   -> 7
56ddmns103 minus         75   -> -75
57ddmns104 minus        -75   -> 75
58ddmns105 minus       7.50   -> -7.50
59ddmns106 minus      -7.50   -> 7.50
60ddmns107 minus       7.500  -> -7.500
61ddmns108 minus      -7.500  -> 7.500
62
63-- zeros
64ddmns111 minus          0   -> 0
65ddmns112 minus         -0   -> 0
66ddmns113 minus       0E+4   -> 0E+4
67ddmns114 minus      -0E+4   -> 0E+4
68ddmns115 minus     0.0000   -> 0.0000
69ddmns116 minus    -0.0000   -> 0.0000
70ddmns117 minus      0E-141  -> 0E-141
71ddmns118 minus     -0E-141  -> 0E-141
72
73-- full coefficients, alternating bits
74ddmns121 minus  2682682682682682         -> -2682682682682682
75ddmns122 minus  -2682682682682682        -> 2682682682682682
76ddmns123 minus  1341341341341341         -> -1341341341341341
77ddmns124 minus  -1341341341341341        -> 1341341341341341
78
79-- Nmax, Nmin, Ntiny
80ddmns131 minus  9.999999999999999E+384   -> -9.999999999999999E+384
81ddmns132 minus  1E-383                   -> -1E-383
82ddmns133 minus  1.000000000000000E-383   -> -1.000000000000000E-383
83ddmns134 minus  1E-398                   -> -1E-398 Subnormal
84
85ddmns135 minus  -1E-398                  -> 1E-398 Subnormal
86ddmns136 minus  -1.000000000000000E-383  -> 1.000000000000000E-383
87ddmns137 minus  -1E-383                  -> 1E-383
88ddmns138 minus  -9.999999999999999E+384  -> 9.999999999999999E+384
89