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annotate Lib/test/decimaltestdata/ddPlus.decTest @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents b3901c5660f7
children 670caa9775f6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ------------------------------------------------------------------------
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2 -- ddPlus.decTest -- decDouble 0+x --
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3 -- Copyright (c) IBM Corporation, 1981, 2008. All rights reserved. --
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4 ------------------------------------------------------------------------
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5 -- Please see the document "General Decimal Arithmetic Testcases" --
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6 -- at http://www2.hursley.ibm.com/decimal for the description of --
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7 -- these testcases. --
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8 -- --
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9 -- These testcases are experimental ('beta' versions), and they --
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10 -- may contain errors. They are offered on an as-is basis. In --
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11 -- particular, achieving the same results as the tests here is not --
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12 -- a guarantee that an implementation complies with any Standard --
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13 -- or specification. The tests are not exhaustive. --
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14 -- --
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15 -- Please send comments, suggestions, and corrections to the author: --
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16 -- Mike Cowlishaw, IBM Fellow --
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17 -- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --
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18 -- mfc@uk.ibm.com --
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19 ------------------------------------------------------------------------
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20 version: 2.58
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21
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22 -- All operands and results are decDoubles.
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23 precision: 16
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24 maxExponent: 384
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25 minExponent: -383
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26 extended: 1
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27 clamp: 1
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28 rounding: half_even
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29
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30 -- Sanity check
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31 ddpls001 plus +7.50 -> 7.50
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32
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33 -- Infinities
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34 ddpls011 plus Infinity -> Infinity
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35 ddpls012 plus -Infinity -> -Infinity
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36
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37 -- NaNs, 0 payload
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38 ddpls021 plus NaN -> NaN
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39 ddpls022 plus -NaN -> -NaN
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40 ddpls023 plus sNaN -> NaN Invalid_operation
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41 ddpls024 plus -sNaN -> -NaN Invalid_operation
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42
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43 -- NaNs, non-0 payload
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44 ddpls031 plus NaN13 -> NaN13
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45 ddpls032 plus -NaN13 -> -NaN13
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46 ddpls033 plus sNaN13 -> NaN13 Invalid_operation
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47 ddpls034 plus -sNaN13 -> -NaN13 Invalid_operation
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48 ddpls035 plus NaN70 -> NaN70
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49 ddpls036 plus -NaN70 -> -NaN70
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50 ddpls037 plus sNaN101 -> NaN101 Invalid_operation
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51 ddpls038 plus -sNaN101 -> -NaN101 Invalid_operation
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52
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53 -- finites
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54 ddpls101 plus 7 -> 7
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55 ddpls102 plus -7 -> -7
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56 ddpls103 plus 75 -> 75
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57 ddpls104 plus -75 -> -75
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58 ddpls105 plus 7.50 -> 7.50
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59 ddpls106 plus -7.50 -> -7.50
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60 ddpls107 plus 7.500 -> 7.500
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61 ddpls108 plus -7.500 -> -7.500
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62
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63 -- zeros
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64 ddpls111 plus 0 -> 0
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65 ddpls112 plus -0 -> 0
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66 ddpls113 plus 0E+4 -> 0E+4
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67 ddpls114 plus -0E+4 -> 0E+4
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68 ddpls115 plus 0.0000 -> 0.0000
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69 ddpls116 plus -0.0000 -> 0.0000
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70 ddpls117 plus 0E-141 -> 0E-141
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71 ddpls118 plus -0E-141 -> 0E-141
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72
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73 -- full coefficients, alternating bits
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74 ddpls121 plus 2682682682682682 -> 2682682682682682
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75 ddpls122 plus -2682682682682682 -> -2682682682682682
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76 ddpls123 plus 1341341341341341 -> 1341341341341341
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77 ddpls124 plus -1341341341341341 -> -1341341341341341
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78
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79 -- Nmax, Nmin, Ntiny
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80 ddpls131 plus 9.999999999999999E+384 -> 9.999999999999999E+384
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81 ddpls132 plus 1E-383 -> 1E-383
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82 ddpls133 plus 1.000000000000000E-383 -> 1.000000000000000E-383
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83 ddpls134 plus 1E-398 -> 1E-398 Subnormal
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84
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85 ddpls135 plus -1E-398 -> -1E-398 Subnormal
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86 ddpls136 plus -1.000000000000000E-383 -> -1.000000000000000E-383
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87 ddpls137 plus -1E-383 -> -1E-383
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88 ddpls138 plus -9.999999999999999E+384 -> -9.999999999999999E+384