1------------------------------------------------------------------------
2-- dqMinus.decTest -- decQuad 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 decQuads.
23extended:    1
24clamp:       1
25precision:   34
26maxExponent: 6144
27minExponent: -6143
28rounding:    half_even
29
30-- Sanity check
31dqmns001 minus       +7.50  -> -7.50
32
33-- Infinities
34dqmns011 minus  Infinity    -> -Infinity
35dqmns012 minus  -Infinity   -> Infinity
36
37-- NaNs, 0 payload
38dqmns021 minus         NaN  -> NaN
39dqmns022 minus        -NaN  -> -NaN
40dqmns023 minus        sNaN  -> NaN  Invalid_operation
41dqmns024 minus       -sNaN  -> -NaN Invalid_operation
42
43-- NaNs, non-0 payload
44dqmns031 minus       NaN13  -> NaN13
45dqmns032 minus      -NaN13  -> -NaN13
46dqmns033 minus      sNaN13  -> NaN13   Invalid_operation
47dqmns034 minus     -sNaN13  -> -NaN13  Invalid_operation
48dqmns035 minus       NaN70  -> NaN70
49dqmns036 minus      -NaN70  -> -NaN70
50dqmns037 minus      sNaN101 -> NaN101  Invalid_operation
51dqmns038 minus     -sNaN101 -> -NaN101 Invalid_operation
52
53-- finites
54dqmns101 minus          7   -> -7
55dqmns102 minus         -7   -> 7
56dqmns103 minus         75   -> -75
57dqmns104 minus        -75   -> 75
58dqmns105 minus       7.50   -> -7.50
59dqmns106 minus      -7.50   -> 7.50
60dqmns107 minus       7.500  -> -7.500
61dqmns108 minus      -7.500  -> 7.500
62
63-- zeros
64dqmns111 minus          0   -> 0
65dqmns112 minus         -0   -> 0
66dqmns113 minus       0E+4   -> 0E+4
67dqmns114 minus      -0E+4   -> 0E+4
68dqmns115 minus     0.0000   -> 0.0000
69dqmns116 minus    -0.0000   -> 0.0000
70dqmns117 minus      0E-141  -> 0E-141
71dqmns118 minus     -0E-141  -> 0E-141
72
73-- full coefficients, alternating bits
74dqmns121 minus   2682682682682682682682682682682682    -> -2682682682682682682682682682682682
75dqmns122 minus  -2682682682682682682682682682682682    ->  2682682682682682682682682682682682
76dqmns123 minus   1341341341341341341341341341341341    -> -1341341341341341341341341341341341
77dqmns124 minus  -1341341341341341341341341341341341    ->  1341341341341341341341341341341341
78
79-- Nmax, Nmin, Ntiny
80dqmns131 minus  9.999999999999999999999999999999999E+6144   -> -9.999999999999999999999999999999999E+6144
81dqmns132 minus  1E-6143                                     -> -1E-6143
82dqmns133 minus  1.000000000000000000000000000000000E-6143   -> -1.000000000000000000000000000000000E-6143
83dqmns134 minus  1E-6176                                     -> -1E-6176 Subnormal
84
85dqmns135 minus  -1E-6176                                    ->  1E-6176 Subnormal
86dqmns136 minus  -1.000000000000000000000000000000000E-6143  ->  1.000000000000000000000000000000000E-6143
87dqmns137 minus  -1E-6143                                    ->  1E-6143
88dqmns138 minus  -9.999999999999999999999999999999999E+6144  ->  9.999999999999999999999999999999999E+6144
89