1 ------------------------------------------------------------------------
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2 -- dqSubtract.decTest -- decQuad subtraction --
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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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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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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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22 -- This set of tests are for decQuads only; all arguments are
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23 -- representable in a decQuad
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31 -- [first group are 'quick confidence check']
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32 dqsub001 subtract 0 0 -> '0'
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33 dqsub002 subtract 1 1 -> '0'
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34 dqsub003 subtract 1 2 -> '-1'
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35 dqsub004 subtract 2 1 -> '1'
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36 dqsub005 subtract 2 2 -> '0'
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37 dqsub006 subtract 3 2 -> '1'
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38 dqsub007 subtract 2 3 -> '-1'
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40 dqsub011 subtract -0 0 -> '-0'
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41 dqsub012 subtract -1 1 -> '-2'
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42 dqsub013 subtract -1 2 -> '-3'
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43 dqsub014 subtract -2 1 -> '-3'
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44 dqsub015 subtract -2 2 -> '-4'
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45 dqsub016 subtract -3 2 -> '-5'
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46 dqsub017 subtract -2 3 -> '-5'
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48 dqsub021 subtract 0 -0 -> '0'
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49 dqsub022 subtract 1 -1 -> '2'
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50 dqsub023 subtract 1 -2 -> '3'
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51 dqsub024 subtract 2 -1 -> '3'
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52 dqsub025 subtract 2 -2 -> '4'
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53 dqsub026 subtract 3 -2 -> '5'
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54 dqsub027 subtract 2 -3 -> '5'
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56 dqsub030 subtract 11 1 -> 10
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57 dqsub031 subtract 10 1 -> 9
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58 dqsub032 subtract 9 1 -> 8
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59 dqsub033 subtract 1 1 -> 0
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60 dqsub034 subtract 0 1 -> -1
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61 dqsub035 subtract -1 1 -> -2
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62 dqsub036 subtract -9 1 -> -10
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63 dqsub037 subtract -10 1 -> -11
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64 dqsub038 subtract -11 1 -> -12
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66 dqsub040 subtract '5.75' '3.3' -> '2.45'
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67 dqsub041 subtract '5' '-3' -> '8'
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68 dqsub042 subtract '-5' '-3' -> '-2'
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69 dqsub043 subtract '-7' '2.5' -> '-9.5'
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70 dqsub044 subtract '0.7' '0.3' -> '0.4'
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71 dqsub045 subtract '1.3' '0.3' -> '1.0'
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72 dqsub046 subtract '1.25' '1.25' -> '0.00'
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74 dqsub050 subtract '1.23456789' '1.00000000' -> '0.23456789'
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75 dqsub051 subtract '1.23456789' '1.00000089' -> '0.23456700'
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77 dqsub060 subtract '70' '10000e+34' -> '-1.000000000000000000000000000000000E+38' Inexact Rounded
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78 dqsub061 subtract '700' '10000e+34' -> '-1.000000000000000000000000000000000E+38' Inexact Rounded
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79 dqsub062 subtract '7000' '10000e+34' -> '-9.999999999999999999999999999999999E+37' Inexact Rounded
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80 dqsub063 subtract '70000' '10000e+34' -> '-9.999999999999999999999999999999993E+37' Rounded
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81 dqsub064 subtract '700000' '10000e+34' -> '-9.999999999999999999999999999999930E+37' Rounded
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83 dqsub065 subtract '10000e+34' '70' -> '1.000000000000000000000000000000000E+38' Inexact Rounded
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84 dqsub066 subtract '10000e+34' '700' -> '1.000000000000000000000000000000000E+38' Inexact Rounded
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85 dqsub067 subtract '10000e+34' '7000' -> '9.999999999999999999999999999999999E+37' Inexact Rounded
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86 dqsub068 subtract '10000e+34' '70000' -> '9.999999999999999999999999999999993E+37' Rounded
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87 dqsub069 subtract '10000e+34' '700000' -> '9.999999999999999999999999999999930E+37' Rounded
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89 -- some of the next group are really constructor tests
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90 dqsub090 subtract '00.0' '0.0' -> '0.0'
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91 dqsub091 subtract '00.0' '0.00' -> '0.00'
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92 dqsub092 subtract '0.00' '00.0' -> '0.00'
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93 dqsub093 subtract '00.0' '0.00' -> '0.00'
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94 dqsub094 subtract '0.00' '00.0' -> '0.00'
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95 dqsub095 subtract '3' '.3' -> '2.7'
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96 dqsub096 subtract '3.' '.3' -> '2.7'
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97 dqsub097 subtract '3.0' '.3' -> '2.7'
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98 dqsub098 subtract '3.00' '.3' -> '2.70'
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99 dqsub099 subtract '3' '3' -> '0'
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100 dqsub100 subtract '3' '+3' -> '0'
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101 dqsub101 subtract '3' '-3' -> '6'
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102 dqsub102 subtract '3' '0.3' -> '2.7'
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103 dqsub103 subtract '3.' '0.3' -> '2.7'
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104 dqsub104 subtract '3.0' '0.3' -> '2.7'
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105 dqsub105 subtract '3.00' '0.3' -> '2.70'
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106 dqsub106 subtract '3' '3.0' -> '0.0'
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107 dqsub107 subtract '3' '+3.0' -> '0.0'
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108 dqsub108 subtract '3' '-3.0' -> '6.0'
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110 -- the above all from add; massaged and extended. Now some new ones...
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111 -- [particularly important for comparisons]
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112 -- NB: -xE-8 below were non-exponents pre-ANSI X3-274, and -1E-7 or 0E-7
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113 -- with input rounding.
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114 dqsub120 subtract '10.23456784' '10.23456789' -> '-5E-8'
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115 dqsub121 subtract '10.23456785' '10.23456789' -> '-4E-8'
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116 dqsub122 subtract '10.23456786' '10.23456789' -> '-3E-8'
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117 dqsub123 subtract '10.23456787' '10.23456789' -> '-2E-8'
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118 dqsub124 subtract '10.23456788' '10.23456789' -> '-1E-8'
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119 dqsub125 subtract '10.23456789' '10.23456789' -> '0E-8'
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120 dqsub126 subtract '10.23456790' '10.23456789' -> '1E-8'
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121 dqsub127 subtract '10.23456791' '10.23456789' -> '2E-8'
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122 dqsub128 subtract '10.23456792' '10.23456789' -> '3E-8'
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123 dqsub129 subtract '10.23456793' '10.23456789' -> '4E-8'
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124 dqsub130 subtract '10.23456794' '10.23456789' -> '5E-8'
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125 dqsub131 subtract '10.23456781' '10.23456786' -> '-5E-8'
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126 dqsub132 subtract '10.23456782' '10.23456786' -> '-4E-8'
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127 dqsub133 subtract '10.23456783' '10.23456786' -> '-3E-8'
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128 dqsub134 subtract '10.23456784' '10.23456786' -> '-2E-8'
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129 dqsub135 subtract '10.23456785' '10.23456786' -> '-1E-8'
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130 dqsub136 subtract '10.23456786' '10.23456786' -> '0E-8'
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131 dqsub137 subtract '10.23456787' '10.23456786' -> '1E-8'
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132 dqsub138 subtract '10.23456788' '10.23456786' -> '2E-8'
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133 dqsub139 subtract '10.23456789' '10.23456786' -> '3E-8'
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134 dqsub140 subtract '10.23456790' '10.23456786' -> '4E-8'
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135 dqsub141 subtract '10.23456791' '10.23456786' -> '5E-8'
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136 dqsub142 subtract '1' '0.999999999' -> '1E-9'
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137 dqsub143 subtract '0.999999999' '1' -> '-1E-9'
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138 dqsub144 subtract '-10.23456780' '-10.23456786' -> '6E-8'
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139 dqsub145 subtract '-10.23456790' '-10.23456786' -> '-4E-8'
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140 dqsub146 subtract '-10.23456791' '-10.23456786' -> '-5E-8'
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142 -- additional scaled arithmetic tests [0.97 problem]
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143 dqsub160 subtract '0' '.1' -> '-0.1'
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144 dqsub161 subtract '00' '.97983' -> '-0.97983'
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145 dqsub162 subtract '0' '.9' -> '-0.9'
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146 dqsub163 subtract '0' '0.102' -> '-0.102'
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147 dqsub164 subtract '0' '.4' -> '-0.4'
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148 dqsub165 subtract '0' '.307' -> '-0.307'
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149 dqsub166 subtract '0' '.43822' -> '-0.43822'
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150 dqsub167 subtract '0' '.911' -> '-0.911'
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151 dqsub168 subtract '.0' '.02' -> '-0.02'
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152 dqsub169 subtract '00' '.392' -> '-0.392'
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153 dqsub170 subtract '0' '.26' -> '-0.26'
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154 dqsub171 subtract '0' '0.51' -> '-0.51'
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155 dqsub172 subtract '0' '.2234' -> '-0.2234'
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156 dqsub173 subtract '0' '.2' -> '-0.2'
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157 dqsub174 subtract '.0' '.0008' -> '-0.0008'
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159 dqsub180 subtract '0.0' '-.1' -> '0.1'
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160 dqsub181 subtract '0.00' '-.97983' -> '0.97983'
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161 dqsub182 subtract '0.0' '-.9' -> '0.9'
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162 dqsub183 subtract '0.0' '-0.102' -> '0.102'
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163 dqsub184 subtract '0.0' '-.4' -> '0.4'
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164 dqsub185 subtract '0.0' '-.307' -> '0.307'
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165 dqsub186 subtract '0.0' '-.43822' -> '0.43822'
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166 dqsub187 subtract '0.0' '-.911' -> '0.911'
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167 dqsub188 subtract '0.0' '-.02' -> '0.02'
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168 dqsub189 subtract '0.00' '-.392' -> '0.392'
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169 dqsub190 subtract '0.0' '-.26' -> '0.26'
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170 dqsub191 subtract '0.0' '-0.51' -> '0.51'
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171 dqsub192 subtract '0.0' '-.2234' -> '0.2234'
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172 dqsub193 subtract '0.0' '-.2' -> '0.2'
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173 dqsub194 subtract '0.0' '-.0008' -> '0.0008'
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174 -- negatives of same
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175 dqsub200 subtract '0' '-.1' -> '0.1'
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176 dqsub201 subtract '00' '-.97983' -> '0.97983'
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177 dqsub202 subtract '0' '-.9' -> '0.9'
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178 dqsub203 subtract '0' '-0.102' -> '0.102'
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179 dqsub204 subtract '0' '-.4' -> '0.4'
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180 dqsub205 subtract '0' '-.307' -> '0.307'
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181 dqsub206 subtract '0' '-.43822' -> '0.43822'
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182 dqsub207 subtract '0' '-.911' -> '0.911'
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183 dqsub208 subtract '.0' '-.02' -> '0.02'
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184 dqsub209 subtract '00' '-.392' -> '0.392'
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185 dqsub210 subtract '0' '-.26' -> '0.26'
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186 dqsub211 subtract '0' '-0.51' -> '0.51'
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187 dqsub212 subtract '0' '-.2234' -> '0.2234'
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188 dqsub213 subtract '0' '-.2' -> '0.2'
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189 dqsub214 subtract '.0' '-.0008' -> '0.0008'
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191 -- more fixed, LHS swaps [really the same as testcases under add]
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192 dqsub220 subtract '-56267E-12' 0 -> '-5.6267E-8'
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193 dqsub221 subtract '-56267E-11' 0 -> '-5.6267E-7'
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194 dqsub222 subtract '-56267E-10' 0 -> '-0.0000056267'
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195 dqsub223 subtract '-56267E-9' 0 -> '-0.000056267'
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196 dqsub224 subtract '-56267E-8' 0 -> '-0.00056267'
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197 dqsub225 subtract '-56267E-7' 0 -> '-0.0056267'
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198 dqsub226 subtract '-56267E-6' 0 -> '-0.056267'
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199 dqsub227 subtract '-56267E-5' 0 -> '-0.56267'
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200 dqsub228 subtract '-56267E-2' 0 -> '-562.67'
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201 dqsub229 subtract '-56267E-1' 0 -> '-5626.7'
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202 dqsub230 subtract '-56267E-0' 0 -> '-56267'
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204 dqsub240 subtract 0 '-56267E-12' -> '5.6267E-8'
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205 dqsub241 subtract 0 '-56267E-11' -> '5.6267E-7'
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206 dqsub242 subtract 0 '-56267E-10' -> '0.0000056267'
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207 dqsub243 subtract 0 '-56267E-9' -> '0.000056267'
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208 dqsub244 subtract 0 '-56267E-8' -> '0.00056267'
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209 dqsub245 subtract 0 '-56267E-7' -> '0.0056267'
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210 dqsub246 subtract 0 '-56267E-6' -> '0.056267'
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211 dqsub247 subtract 0 '-56267E-5' -> '0.56267'
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212 dqsub248 subtract 0 '-56267E-2' -> '562.67'
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213 dqsub249 subtract 0 '-56267E-1' -> '5626.7'
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214 dqsub250 subtract 0 '-56267E-0' -> '56267'
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216 -- now some more from the 'new' add
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217 dqsub301 subtract '1.23456789' '1.00000000' -> '0.23456789'
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218 dqsub302 subtract '1.23456789' '1.00000011' -> '0.23456778'
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220 -- some carrying effects
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221 dqsub321 subtract '0.9998' '0.0000' -> '0.9998'
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222 dqsub322 subtract '0.9998' '0.0001' -> '0.9997'
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223 dqsub323 subtract '0.9998' '0.0002' -> '0.9996'
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224 dqsub324 subtract '0.9998' '0.0003' -> '0.9995'
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225 dqsub325 subtract '0.9998' '-0.0000' -> '0.9998'
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226 dqsub326 subtract '0.9998' '-0.0001' -> '0.9999'
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227 dqsub327 subtract '0.9998' '-0.0002' -> '1.0000'
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228 dqsub328 subtract '0.9998' '-0.0003' -> '1.0001'
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230 -- internal boundaries
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231 dqsub346 subtract '10000e+9' '7' -> '9999999999993'
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232 dqsub347 subtract '10000e+9' '70' -> '9999999999930'
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233 dqsub348 subtract '10000e+9' '700' -> '9999999999300'
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234 dqsub349 subtract '10000e+9' '7000' -> '9999999993000'
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235 dqsub350 subtract '10000e+9' '70000' -> '9999999930000'
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236 dqsub351 subtract '10000e+9' '700000' -> '9999999300000'
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237 dqsub352 subtract '7' '10000e+9' -> '-9999999999993'
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238 dqsub353 subtract '70' '10000e+9' -> '-9999999999930'
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239 dqsub354 subtract '700' '10000e+9' -> '-9999999999300'
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240 dqsub355 subtract '7000' '10000e+9' -> '-9999999993000'
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241 dqsub356 subtract '70000' '10000e+9' -> '-9999999930000'
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242 dqsub357 subtract '700000' '10000e+9' -> '-9999999300000'
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244 -- zero preservation
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245 dqsub361 subtract 1 '0.0001' -> '0.9999'
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246 dqsub362 subtract 1 '0.00001' -> '0.99999'
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247 dqsub363 subtract 1 '0.000001' -> '0.999999'
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248 dqsub364 subtract 1 '0.0000000000000000000000000000000001' -> '0.9999999999999999999999999999999999'
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249 dqsub365 subtract 1 '0.00000000000000000000000000000000001' -> '1.000000000000000000000000000000000' Inexact Rounded
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250 dqsub366 subtract 1 '0.000000000000000000000000000000000001' -> '1.000000000000000000000000000000000' Inexact Rounded
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252 -- some funny zeros [in case of bad signum]
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253 dqsub370 subtract 1 0 -> 1
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254 dqsub371 subtract 1 0. -> 1
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255 dqsub372 subtract 1 .0 -> 1.0
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256 dqsub373 subtract 1 0.0 -> 1.0
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257 dqsub374 subtract 0 1 -> -1
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258 dqsub375 subtract 0. 1 -> -1
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259 dqsub376 subtract .0 1 -> -1.0
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260 dqsub377 subtract 0.0 1 -> -1.0
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262 -- leading 0 digit before round
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263 dqsub910 subtract -103519362 -51897955.3 -> -51621406.7
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264 dqsub911 subtract 159579.444 89827.5229 -> 69751.9211
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266 dqsub920 subtract 333.0000000000000000000000000123456 33.00000000000000000000000001234566 -> 299.9999999999999999999999999999999 Inexact Rounded
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267 dqsub921 subtract 333.0000000000000000000000000123456 33.00000000000000000000000001234565 -> 300.0000000000000000000000000000000 Inexact Rounded
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268 dqsub922 subtract 133.0000000000000000000000000123456 33.00000000000000000000000001234565 -> 99.99999999999999999999999999999995
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269 dqsub923 subtract 133.0000000000000000000000000123456 33.00000000000000000000000001234564 -> 99.99999999999999999999999999999996
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270 dqsub924 subtract 133.0000000000000000000000000123456 33.00000000000000000000000001234540 -> 100.0000000000000000000000000000002 Rounded
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271 dqsub925 subtract 133.0000000000000000000000000123456 43.00000000000000000000000001234560 -> 90.00000000000000000000000000000000
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272 dqsub926 subtract 133.0000000000000000000000000123456 43.00000000000000000000000001234561 -> 89.99999999999999999999999999999999
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273 dqsub927 subtract 133.0000000000000000000000000123456 43.00000000000000000000000001234566 -> 89.99999999999999999999999999999994
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274 dqsub928 subtract 101.0000000000000000000000000123456 91.00000000000000000000000001234566 -> 9.99999999999999999999999999999994
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275 dqsub929 subtract 101.0000000000000000000000000123456 99.00000000000000000000000001234566 -> 1.99999999999999999999999999999994
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277 -- more LHS swaps [were fixed]
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278 dqsub390 subtract '-56267E-10' 0 -> '-0.0000056267'
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279 dqsub391 subtract '-56267E-6' 0 -> '-0.056267'
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280 dqsub392 subtract '-56267E-5' 0 -> '-0.56267'
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281 dqsub393 subtract '-56267E-4' 0 -> '-5.6267'
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282 dqsub394 subtract '-56267E-3' 0 -> '-56.267'
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283 dqsub395 subtract '-56267E-2' 0 -> '-562.67'
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284 dqsub396 subtract '-56267E-1' 0 -> '-5626.7'
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285 dqsub397 subtract '-56267E-0' 0 -> '-56267'
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286 dqsub398 subtract '-5E-10' 0 -> '-5E-10'
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287 dqsub399 subtract '-5E-7' 0 -> '-5E-7'
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288 dqsub400 subtract '-5E-6' 0 -> '-0.000005'
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289 dqsub401 subtract '-5E-5' 0 -> '-0.00005'
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290 dqsub402 subtract '-5E-4' 0 -> '-0.0005'
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291 dqsub403 subtract '-5E-1' 0 -> '-0.5'
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292 dqsub404 subtract '-5E0' 0 -> '-5'
\r
293 dqsub405 subtract '-5E1' 0 -> '-50'
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294 dqsub406 subtract '-5E5' 0 -> '-500000'
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295 dqsub407 subtract '-5E33' 0 -> '-5000000000000000000000000000000000'
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296 dqsub408 subtract '-5E34' 0 -> '-5.000000000000000000000000000000000E+34' Rounded
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297 dqsub409 subtract '-5E35' 0 -> '-5.000000000000000000000000000000000E+35' Rounded
\r
298 dqsub410 subtract '-5E36' 0 -> '-5.000000000000000000000000000000000E+36' Rounded
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299 dqsub411 subtract '-5E100' 0 -> '-5.000000000000000000000000000000000E+100' Rounded
\r
301 -- more RHS swaps [were fixed]
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302 dqsub420 subtract 0 '-56267E-10' -> '0.0000056267'
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303 dqsub421 subtract 0 '-56267E-6' -> '0.056267'
\r
304 dqsub422 subtract 0 '-56267E-5' -> '0.56267'
\r
305 dqsub423 subtract 0 '-56267E-4' -> '5.6267'
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306 dqsub424 subtract 0 '-56267E-3' -> '56.267'
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307 dqsub425 subtract 0 '-56267E-2' -> '562.67'
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308 dqsub426 subtract 0 '-56267E-1' -> '5626.7'
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309 dqsub427 subtract 0 '-56267E-0' -> '56267'
\r
310 dqsub428 subtract 0 '-5E-10' -> '5E-10'
\r
311 dqsub429 subtract 0 '-5E-7' -> '5E-7'
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312 dqsub430 subtract 0 '-5E-6' -> '0.000005'
\r
313 dqsub431 subtract 0 '-5E-5' -> '0.00005'
\r
314 dqsub432 subtract 0 '-5E-4' -> '0.0005'
\r
315 dqsub433 subtract 0 '-5E-1' -> '0.5'
\r
316 dqsub434 subtract 0 '-5E0' -> '5'
\r
317 dqsub435 subtract 0 '-5E1' -> '50'
\r
318 dqsub436 subtract 0 '-5E5' -> '500000'
\r
319 dqsub437 subtract 0 '-5E33' -> '5000000000000000000000000000000000'
\r
320 dqsub438 subtract 0 '-5E34' -> '5.000000000000000000000000000000000E+34' Rounded
\r
321 dqsub439 subtract 0 '-5E35' -> '5.000000000000000000000000000000000E+35' Rounded
\r
322 dqsub440 subtract 0 '-5E36' -> '5.000000000000000000000000000000000E+36' Rounded
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323 dqsub441 subtract 0 '-5E100' -> '5.000000000000000000000000000000000E+100' Rounded
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326 -- try borderline precision, with carries, etc.
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327 dqsub461 subtract '1E+16' '1' -> '9999999999999999'
\r
328 dqsub462 subtract '1E+12' '-1.111' -> '1000000000001.111'
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329 dqsub463 subtract '1.111' '-1E+12' -> '1000000000001.111'
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330 dqsub464 subtract '-1' '-1E+16' -> '9999999999999999'
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331 dqsub465 subtract '7E+15' '1' -> '6999999999999999'
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332 dqsub466 subtract '7E+12' '-1.111' -> '7000000000001.111'
\r
333 dqsub467 subtract '1.111' '-7E+12' -> '7000000000001.111'
\r
334 dqsub468 subtract '-1' '-7E+15' -> '6999999999999999'
\r
336 -- 1234567890123456 1234567890123456 1 23456789012345
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337 dqsub470 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555563' -> '1.000000000000000000000000000000001' Inexact Rounded
\r
338 dqsub471 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555562' -> '1.000000000000000000000000000000001' Inexact Rounded
\r
339 dqsub472 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555561' -> '1.000000000000000000000000000000000' Inexact Rounded
\r
340 dqsub473 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555560' -> '1.000000000000000000000000000000000' Inexact Rounded
\r
341 dqsub474 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555559' -> '1.000000000000000000000000000000000' Inexact Rounded
\r
342 dqsub475 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555558' -> '1.000000000000000000000000000000000' Inexact Rounded
\r
343 dqsub476 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555557' -> '1.000000000000000000000000000000000' Inexact Rounded
\r
344 dqsub477 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555556' -> '1.000000000000000000000000000000000' Rounded
\r
345 dqsub478 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555555' -> '0.9999999999999999999999999999999999'
\r
346 dqsub479 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555554' -> '0.9999999999999999999999999999999998'
\r
347 dqsub480 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555553' -> '0.9999999999999999999999999999999997'
\r
348 dqsub481 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555552' -> '0.9999999999999999999999999999999996'
\r
349 dqsub482 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555551' -> '0.9999999999999999999999999999999995'
\r
350 dqsub483 subtract '0.4444444444444444444444444444444444' '-0.5555555555555555555555555555555550' -> '0.9999999999999999999999999999999994'
\r
352 -- and some more, including residue effects and different roundings
\r
354 dqsub500 subtract '1231234555555555555555555567456789' 0 -> '1231234555555555555555555567456789'
\r
355 dqsub501 subtract '1231234555555555555555555567456789' 0.000000001 -> '1231234555555555555555555567456789' Inexact Rounded
\r
356 dqsub502 subtract '1231234555555555555555555567456789' 0.000001 -> '1231234555555555555555555567456789' Inexact Rounded
\r
357 dqsub503 subtract '1231234555555555555555555567456789' 0.1 -> '1231234555555555555555555567456789' Inexact Rounded
\r
358 dqsub504 subtract '1231234555555555555555555567456789' 0.4 -> '1231234555555555555555555567456789' Inexact Rounded
\r
359 dqsub505 subtract '1231234555555555555555555567456789' 0.49 -> '1231234555555555555555555567456789' Inexact Rounded
\r
360 dqsub506 subtract '1231234555555555555555555567456789' 0.499999 -> '1231234555555555555555555567456789' Inexact Rounded
\r
361 dqsub507 subtract '1231234555555555555555555567456789' 0.499999999 -> '1231234555555555555555555567456789' Inexact Rounded
\r
362 dqsub508 subtract '1231234555555555555555555567456789' 0.5 -> '1231234555555555555555555567456789' Inexact Rounded
\r
363 dqsub509 subtract '1231234555555555555555555567456789' 0.500000001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
364 dqsub510 subtract '1231234555555555555555555567456789' 0.500001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
365 dqsub511 subtract '1231234555555555555555555567456789' 0.51 -> '1231234555555555555555555567456788' Inexact Rounded
\r
366 dqsub512 subtract '1231234555555555555555555567456789' 0.6 -> '1231234555555555555555555567456788' Inexact Rounded
\r
367 dqsub513 subtract '1231234555555555555555555567456789' 0.9 -> '1231234555555555555555555567456788' Inexact Rounded
\r
368 dqsub514 subtract '1231234555555555555555555567456789' 0.99999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
369 dqsub515 subtract '1231234555555555555555555567456789' 0.999999999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
370 dqsub516 subtract '1231234555555555555555555567456789' 1 -> '1231234555555555555555555567456788'
\r
371 dqsub517 subtract '1231234555555555555555555567456789' 1.000000001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
372 dqsub518 subtract '1231234555555555555555555567456789' 1.00001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
373 dqsub519 subtract '1231234555555555555555555567456789' 1.1 -> '1231234555555555555555555567456788' Inexact Rounded
\r
375 rounding: half_even
\r
376 dqsub520 subtract '1231234555555555555555555567456789' 0 -> '1231234555555555555555555567456789'
\r
377 dqsub521 subtract '1231234555555555555555555567456789' 0.000000001 -> '1231234555555555555555555567456789' Inexact Rounded
\r
378 dqsub522 subtract '1231234555555555555555555567456789' 0.000001 -> '1231234555555555555555555567456789' Inexact Rounded
\r
379 dqsub523 subtract '1231234555555555555555555567456789' 0.1 -> '1231234555555555555555555567456789' Inexact Rounded
\r
380 dqsub524 subtract '1231234555555555555555555567456789' 0.4 -> '1231234555555555555555555567456789' Inexact Rounded
\r
381 dqsub525 subtract '1231234555555555555555555567456789' 0.49 -> '1231234555555555555555555567456789' Inexact Rounded
\r
382 dqsub526 subtract '1231234555555555555555555567456789' 0.499999 -> '1231234555555555555555555567456789' Inexact Rounded
\r
383 dqsub527 subtract '1231234555555555555555555567456789' 0.499999999 -> '1231234555555555555555555567456789' Inexact Rounded
\r
384 dqsub528 subtract '1231234555555555555555555567456789' 0.5 -> '1231234555555555555555555567456788' Inexact Rounded
\r
385 dqsub529 subtract '1231234555555555555555555567456789' 0.500000001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
386 dqsub530 subtract '1231234555555555555555555567456789' 0.500001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
387 dqsub531 subtract '1231234555555555555555555567456789' 0.51 -> '1231234555555555555555555567456788' Inexact Rounded
\r
388 dqsub532 subtract '1231234555555555555555555567456789' 0.6 -> '1231234555555555555555555567456788' Inexact Rounded
\r
389 dqsub533 subtract '1231234555555555555555555567456789' 0.9 -> '1231234555555555555555555567456788' Inexact Rounded
\r
390 dqsub534 subtract '1231234555555555555555555567456789' 0.99999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
391 dqsub535 subtract '1231234555555555555555555567456789' 0.999999999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
392 dqsub536 subtract '1231234555555555555555555567456789' 1 -> '1231234555555555555555555567456788'
\r
393 dqsub537 subtract '1231234555555555555555555567456789' 1.00000001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
394 dqsub538 subtract '1231234555555555555555555567456789' 1.00001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
395 dqsub539 subtract '1231234555555555555555555567456789' 1.1 -> '1231234555555555555555555567456788' Inexact Rounded
\r
396 -- critical few with even bottom digit...
\r
397 dqsub540 subtract '1231234555555555555555555567456788' 0.499999999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
398 dqsub541 subtract '1231234555555555555555555567456788' 0.5 -> '1231234555555555555555555567456788' Inexact Rounded
\r
399 dqsub542 subtract '1231234555555555555555555567456788' 0.500000001 -> '1231234555555555555555555567456787' Inexact Rounded
\r
402 dqsub550 subtract '1231234555555555555555555567456789' 0 -> '1231234555555555555555555567456789'
\r
403 dqsub551 subtract '1231234555555555555555555567456789' 0.000000001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
404 dqsub552 subtract '1231234555555555555555555567456789' 0.000001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
405 dqsub553 subtract '1231234555555555555555555567456789' 0.1 -> '1231234555555555555555555567456788' Inexact Rounded
\r
406 dqsub554 subtract '1231234555555555555555555567456789' 0.4 -> '1231234555555555555555555567456788' Inexact Rounded
\r
407 dqsub555 subtract '1231234555555555555555555567456789' 0.49 -> '1231234555555555555555555567456788' Inexact Rounded
\r
408 dqsub556 subtract '1231234555555555555555555567456789' 0.499999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
409 dqsub557 subtract '1231234555555555555555555567456789' 0.499999999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
410 dqsub558 subtract '1231234555555555555555555567456789' 0.5 -> '1231234555555555555555555567456788' Inexact Rounded
\r
411 dqsub559 subtract '1231234555555555555555555567456789' 0.500000001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
412 dqsub560 subtract '1231234555555555555555555567456789' 0.500001 -> '1231234555555555555555555567456788' Inexact Rounded
\r
413 dqsub561 subtract '1231234555555555555555555567456789' 0.51 -> '1231234555555555555555555567456788' Inexact Rounded
\r
414 dqsub562 subtract '1231234555555555555555555567456789' 0.6 -> '1231234555555555555555555567456788' Inexact Rounded
\r
415 dqsub563 subtract '1231234555555555555555555567456789' 0.9 -> '1231234555555555555555555567456788' Inexact Rounded
\r
416 dqsub564 subtract '1231234555555555555555555567456789' 0.99999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
417 dqsub565 subtract '1231234555555555555555555567456789' 0.999999999 -> '1231234555555555555555555567456788' Inexact Rounded
\r
418 dqsub566 subtract '1231234555555555555555555567456789' 1 -> '1231234555555555555555555567456788'
\r
419 dqsub567 subtract '1231234555555555555555555567456789' 1.00000001 -> '1231234555555555555555555567456787' Inexact Rounded
\r
420 dqsub568 subtract '1231234555555555555555555567456789' 1.00001 -> '1231234555555555555555555567456787' Inexact Rounded
\r
421 dqsub569 subtract '1231234555555555555555555567456789' 1.1 -> '1231234555555555555555555567456787' Inexact Rounded
\r
425 dqsub600 subtract 0 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789'
\r
426 dqsub601 subtract 0.000000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
427 dqsub602 subtract 0.000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
428 dqsub603 subtract 0.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
429 dqsub604 subtract 0.4 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
430 dqsub605 subtract 0.49 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
431 dqsub606 subtract 0.499999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
432 dqsub607 subtract 0.499999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
433 dqsub608 subtract 0.5 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
434 dqsub609 subtract 0.500000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
435 dqsub610 subtract 0.500001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
436 dqsub611 subtract 0.51 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
437 dqsub612 subtract 0.6 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
438 dqsub613 subtract 0.9 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
439 dqsub614 subtract 0.99999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
440 dqsub615 subtract 0.999999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
441 dqsub616 subtract 1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788'
\r
442 dqsub617 subtract 1.000000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
443 dqsub618 subtract 1.00001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
444 dqsub619 subtract 1.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
446 rounding: half_even
\r
447 dqsub620 subtract 0 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789'
\r
448 dqsub621 subtract 0.000000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
449 dqsub622 subtract 0.000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
450 dqsub623 subtract 0.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
451 dqsub624 subtract 0.4 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
452 dqsub625 subtract 0.49 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
453 dqsub626 subtract 0.499999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
454 dqsub627 subtract 0.499999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789' Inexact Rounded
\r
455 dqsub628 subtract 0.5 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
456 dqsub629 subtract 0.500000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
457 dqsub630 subtract 0.500001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
458 dqsub631 subtract 0.51 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
459 dqsub632 subtract 0.6 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
460 dqsub633 subtract 0.9 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
461 dqsub634 subtract 0.99999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
462 dqsub635 subtract 0.999999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
463 dqsub636 subtract 1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788'
\r
464 dqsub637 subtract 1.00000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
465 dqsub638 subtract 1.00001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
466 dqsub639 subtract 1.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
467 -- critical few with even bottom digit...
\r
468 dqsub640 subtract 0.499999999 '1231234555555555555555555567456788' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
469 dqsub641 subtract 0.5 '1231234555555555555555555567456788' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
470 dqsub642 subtract 0.500000001 '1231234555555555555555555567456788' -> '-1231234555555555555555555567456787' Inexact Rounded
\r
473 dqsub650 subtract 0 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456789'
\r
474 dqsub651 subtract 0.000000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
475 dqsub652 subtract 0.000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
476 dqsub653 subtract 0.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
477 dqsub654 subtract 0.4 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
478 dqsub655 subtract 0.49 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
479 dqsub656 subtract 0.499999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
480 dqsub657 subtract 0.499999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
481 dqsub658 subtract 0.5 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
482 dqsub659 subtract 0.500000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
483 dqsub660 subtract 0.500001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
484 dqsub661 subtract 0.51 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
485 dqsub662 subtract 0.6 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
486 dqsub663 subtract 0.9 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
487 dqsub664 subtract 0.99999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
488 dqsub665 subtract 0.999999999 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788' Inexact Rounded
\r
489 dqsub666 subtract 1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456788'
\r
490 dqsub667 subtract 1.00000001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456787' Inexact Rounded
\r
491 dqsub668 subtract 1.00001 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456787' Inexact Rounded
\r
492 dqsub669 subtract 1.1 '1231234555555555555555555567456789' -> '-1231234555555555555555555567456787' Inexact Rounded
\r
495 -- lots of leading zeros in intermediate result, and showing effects of
\r
496 -- input rounding would have affected the following
\r
498 dqsub670 subtract '1234567456789' '1234567456788.1' -> 0.9
\r
499 dqsub671 subtract '1234567456789' '1234567456788.9' -> 0.1
\r
500 dqsub672 subtract '1234567456789' '1234567456789.1' -> -0.1
\r
501 dqsub673 subtract '1234567456789' '1234567456789.5' -> -0.5
\r
502 dqsub674 subtract '1234567456789' '1234567456789.9' -> -0.9
\r
504 rounding: half_even
\r
505 dqsub680 subtract '1234567456789' '1234567456788.1' -> 0.9
\r
506 dqsub681 subtract '1234567456789' '1234567456788.9' -> 0.1
\r
507 dqsub682 subtract '1234567456789' '1234567456789.1' -> -0.1
\r
508 dqsub683 subtract '1234567456789' '1234567456789.5' -> -0.5
\r
509 dqsub684 subtract '1234567456789' '1234567456789.9' -> -0.9
\r
511 dqsub685 subtract '1234567456788' '1234567456787.1' -> 0.9
\r
512 dqsub686 subtract '1234567456788' '1234567456787.9' -> 0.1
\r
513 dqsub687 subtract '1234567456788' '1234567456788.1' -> -0.1
\r
514 dqsub688 subtract '1234567456788' '1234567456788.5' -> -0.5
\r
515 dqsub689 subtract '1234567456788' '1234567456788.9' -> -0.9
\r
518 dqsub690 subtract '1234567456789' '1234567456788.1' -> 0.9
\r
519 dqsub691 subtract '1234567456789' '1234567456788.9' -> 0.1
\r
520 dqsub692 subtract '1234567456789' '1234567456789.1' -> -0.1
\r
521 dqsub693 subtract '1234567456789' '1234567456789.5' -> -0.5
\r
522 dqsub694 subtract '1234567456789' '1234567456789.9' -> -0.9
\r
525 dqsub780 subtract -Inf Inf -> -Infinity
\r
526 dqsub781 subtract -Inf 1000 -> -Infinity
\r
527 dqsub782 subtract -Inf 1 -> -Infinity
\r
528 dqsub783 subtract -Inf -0 -> -Infinity
\r
529 dqsub784 subtract -Inf -1 -> -Infinity
\r
530 dqsub785 subtract -Inf -1000 -> -Infinity
\r
531 dqsub787 subtract -1000 Inf -> -Infinity
\r
532 dqsub788 subtract -Inf Inf -> -Infinity
\r
533 dqsub789 subtract -1 Inf -> -Infinity
\r
534 dqsub790 subtract 0 Inf -> -Infinity
\r
535 dqsub791 subtract 1 Inf -> -Infinity
\r
536 dqsub792 subtract 1000 Inf -> -Infinity
\r
538 dqsub800 subtract Inf Inf -> NaN Invalid_operation
\r
539 dqsub801 subtract Inf 1000 -> Infinity
\r
540 dqsub802 subtract Inf 1 -> Infinity
\r
541 dqsub803 subtract Inf 0 -> Infinity
\r
542 dqsub804 subtract Inf -0 -> Infinity
\r
543 dqsub805 subtract Inf -1 -> Infinity
\r
544 dqsub806 subtract Inf -1000 -> Infinity
\r
545 dqsub807 subtract Inf -Inf -> Infinity
\r
546 dqsub808 subtract -1000 -Inf -> Infinity
\r
547 dqsub809 subtract -Inf -Inf -> NaN Invalid_operation
\r
548 dqsub810 subtract -1 -Inf -> Infinity
\r
549 dqsub811 subtract -0 -Inf -> Infinity
\r
550 dqsub812 subtract 0 -Inf -> Infinity
\r
551 dqsub813 subtract 1 -Inf -> Infinity
\r
552 dqsub814 subtract 1000 -Inf -> Infinity
\r
553 dqsub815 subtract Inf -Inf -> Infinity
\r
555 dqsub821 subtract NaN Inf -> NaN
\r
556 dqsub822 subtract -NaN 1000 -> -NaN
\r
557 dqsub823 subtract NaN 1 -> NaN
\r
558 dqsub824 subtract NaN 0 -> NaN
\r
559 dqsub825 subtract NaN -0 -> NaN
\r
560 dqsub826 subtract NaN -1 -> NaN
\r
561 dqsub827 subtract NaN -1000 -> NaN
\r
562 dqsub828 subtract NaN -Inf -> NaN
\r
563 dqsub829 subtract -NaN NaN -> -NaN
\r
564 dqsub830 subtract -Inf NaN -> NaN
\r
565 dqsub831 subtract -1000 NaN -> NaN
\r
566 dqsub832 subtract -1 NaN -> NaN
\r
567 dqsub833 subtract -0 NaN -> NaN
\r
568 dqsub834 subtract 0 NaN -> NaN
\r
569 dqsub835 subtract 1 NaN -> NaN
\r
570 dqsub836 subtract 1000 -NaN -> -NaN
\r
571 dqsub837 subtract Inf NaN -> NaN
\r
573 dqsub841 subtract sNaN Inf -> NaN Invalid_operation
\r
574 dqsub842 subtract -sNaN 1000 -> -NaN Invalid_operation
\r
575 dqsub843 subtract sNaN 1 -> NaN Invalid_operation
\r
576 dqsub844 subtract sNaN 0 -> NaN Invalid_operation
\r
577 dqsub845 subtract sNaN -0 -> NaN Invalid_operation
\r
578 dqsub846 subtract sNaN -1 -> NaN Invalid_operation
\r
579 dqsub847 subtract sNaN -1000 -> NaN Invalid_operation
\r
580 dqsub848 subtract sNaN NaN -> NaN Invalid_operation
\r
581 dqsub849 subtract sNaN sNaN -> NaN Invalid_operation
\r
582 dqsub850 subtract NaN sNaN -> NaN Invalid_operation
\r
583 dqsub851 subtract -Inf -sNaN -> -NaN Invalid_operation
\r
584 dqsub852 subtract -1000 sNaN -> NaN Invalid_operation
\r
585 dqsub853 subtract -1 sNaN -> NaN Invalid_operation
\r
586 dqsub854 subtract -0 sNaN -> NaN Invalid_operation
\r
587 dqsub855 subtract 0 sNaN -> NaN Invalid_operation
\r
588 dqsub856 subtract 1 sNaN -> NaN Invalid_operation
\r
589 dqsub857 subtract 1000 sNaN -> NaN Invalid_operation
\r
590 dqsub858 subtract Inf sNaN -> NaN Invalid_operation
\r
591 dqsub859 subtract NaN sNaN -> NaN Invalid_operation
\r
593 -- propagating NaNs
\r
594 dqsub861 subtract NaN01 -Inf -> NaN1
\r
595 dqsub862 subtract -NaN02 -1000 -> -NaN2
\r
596 dqsub863 subtract NaN03 1000 -> NaN3
\r
597 dqsub864 subtract NaN04 Inf -> NaN4
\r
598 dqsub865 subtract NaN05 NaN61 -> NaN5
\r
599 dqsub866 subtract -Inf -NaN71 -> -NaN71
\r
600 dqsub867 subtract -1000 NaN81 -> NaN81
\r
601 dqsub868 subtract 1000 NaN91 -> NaN91
\r
602 dqsub869 subtract Inf NaN101 -> NaN101
\r
603 dqsub871 subtract sNaN011 -Inf -> NaN11 Invalid_operation
\r
604 dqsub872 subtract sNaN012 -1000 -> NaN12 Invalid_operation
\r
605 dqsub873 subtract -sNaN013 1000 -> -NaN13 Invalid_operation
\r
606 dqsub874 subtract sNaN014 NaN171 -> NaN14 Invalid_operation
\r
607 dqsub875 subtract sNaN015 sNaN181 -> NaN15 Invalid_operation
\r
608 dqsub876 subtract NaN016 sNaN191 -> NaN191 Invalid_operation
\r
609 dqsub877 subtract -Inf sNaN201 -> NaN201 Invalid_operation
\r
610 dqsub878 subtract -1000 sNaN211 -> NaN211 Invalid_operation
\r
611 dqsub879 subtract 1000 -sNaN221 -> -NaN221 Invalid_operation
\r
612 dqsub880 subtract Inf sNaN231 -> NaN231 Invalid_operation
\r
613 dqsub881 subtract NaN025 sNaN241 -> NaN241 Invalid_operation
\r
615 -- edge case spills
\r
616 dqsub901 subtract 2.E-3 1.002 -> -1.000
\r
617 dqsub902 subtract 2.0E-3 1.002 -> -1.0000
\r
618 dqsub903 subtract 2.00E-3 1.0020 -> -1.00000
\r
619 dqsub904 subtract 2.000E-3 1.00200 -> -1.000000
\r
620 dqsub905 subtract 2.0000E-3 1.002000 -> -1.0000000
\r
621 dqsub906 subtract 2.00000E-3 1.0020000 -> -1.00000000
\r
622 dqsub907 subtract 2.000000E-3 1.00200000 -> -1.000000000
\r
623 dqsub908 subtract 2.0000000E-3 1.002000000 -> -1.0000000000
\r
625 -- subnormals and overflows covered under Add
\r
627 -- Examples from SQL proposal (Krishna Kulkarni)
\r
628 dqsub1125 subtract 130E-2 120E-2 -> 0.10
\r
629 dqsub1126 subtract 130E-2 12E-1 -> 0.10
\r
630 dqsub1127 subtract 130E-2 1E0 -> 0.30
\r
631 dqsub1128 subtract 1E2 1E4 -> -9.9E+3
\r
634 dqsub9990 subtract 10 # -> NaN Invalid_operation
\r
635 dqsub9991 subtract # 10 -> NaN Invalid_operation
\r