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annotate src/testdir/test_float_func.vim @ 20918:a253e5fc58d1

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Added tag v8.2.1010 for changeset 5c6a6b5a33308a5e803f5289ea6c15c67d3f8db3
author Bram Moolenaar <Bram@vim.org>
date Fri, 19 Jun 2020 17:30:04 +0200
parents 545119cd5554
children 5f8dd7b3ae41
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1 " test float functions
80b50e43e382 commit https://github.com/vim/vim/commit/453b576ee5d32e9b8e6876712748ae01f9be68dd
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2
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3 source check.vim
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4 CheckFeature float
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6 func Test_abs()
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7 call assert_equal('1.23', string(abs(1.23)))
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8 call assert_equal('1.23', string(abs(-1.23)))
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9 eval -1.23->abs()->string()->assert_equal('1.23')
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10
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11 call assert_equal('0.0', string(abs(0.0)))
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12 call assert_equal('0.0', string(abs(1.0/(1.0/0.0))))
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13 call assert_equal('0.0', string(abs(-1.0/(1.0/0.0))))
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14 call assert_equal('inf', string(abs(1.0/0.0)))
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15 call assert_equal('inf', string(abs(-1.0/0.0)))
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16 call assert_equal('nan', string(abs(0.0/0.0)))
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17 call assert_equal('12', string(abs('12abc')))
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18 call assert_equal('12', string(abs('-12abc')))
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19 call assert_fails("call abs([])", 'E745:')
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20 call assert_fails("call abs({})", 'E728:')
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21 call assert_fails("call abs(function('string'))", 'E703:')
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22 endfunc
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24 func Test_sqrt()
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25 call assert_equal('0.0', string(sqrt(0.0)))
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26 call assert_equal('1.414214', string(sqrt(2.0)))
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27 eval 2.0->sqrt()->string()->assert_equal('1.414214')
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28 call assert_equal('inf', string(sqrt(1.0/0.0)))
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29 call assert_equal('nan', string(sqrt(-1.0)))
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30 call assert_equal('nan', string(sqrt(0.0/0.0)))
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31 call assert_fails('call sqrt("")', 'E808:')
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32 endfunc
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34 func Test_log()
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35 call assert_equal('0.0', string(log(1.0)))
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36 call assert_equal('-0.693147', string(log(0.5)))
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37 eval 0.5->log()->string()->assert_equal('-0.693147')
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38 call assert_equal('-inf', string(log(0.0)))
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39 call assert_equal('nan', string(log(-1.0)))
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40 call assert_equal('inf', string(log(1.0/0.0)))
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41 call assert_equal('nan', string(log(0.0/0.0)))
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42 call assert_fails('call log("")', 'E808:')
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43 endfunc
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45 func Test_log10()
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46 call assert_equal('0.0', string(log10(1.0)))
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47 call assert_equal('2.0', string(log10(100.0)))
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48 call assert_equal('2.079181', string(log10(120.0)))
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49 eval 120.0->log10()->string()->assert_equal('2.079181')
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50 call assert_equal('-inf', string(log10(0.0)))
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51 call assert_equal('nan', string(log10(-1.0)))
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52 call assert_equal('inf', string(log10(1.0/0.0)))
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53 call assert_equal('nan', string(log10(0.0/0.0)))
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54 call assert_fails('call log10("")', 'E808:')
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55 endfunc
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57 func Test_exp()
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58 call assert_equal('1.0', string(exp(0.0)))
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59 call assert_equal('7.389056', string(exp(2.0)))
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60 call assert_equal('0.367879', string(exp(-1.0)))
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61 eval -1.0->exp()->string()->assert_equal('0.367879')
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62 call assert_equal('inf', string(exp(1.0/0.0)))
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63 call assert_equal('0.0', string(exp(-1.0/0.0)))
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64 call assert_equal('nan', string(exp(0.0/0.0)))
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65 call assert_fails('call exp("")', 'E808:')
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66 endfunc
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68 func Test_sin()
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69 call assert_equal('0.0', string(sin(0.0)))
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70 call assert_equal('0.841471', string(sin(1.0)))
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71 call assert_equal('-0.479426', string(sin(-0.5)))
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72 eval -0.5->sin()->string()->assert_equal('-0.479426')
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73 call assert_equal('nan', string(sin(0.0/0.0)))
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74 call assert_equal('nan', string(sin(1.0/0.0)))
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75 call assert_equal('0.0', string(sin(1.0/(1.0/0.0))))
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76 call assert_equal('-0.0', string(sin(-1.0/(1.0/0.0))))
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77 call assert_fails('call sin("")', 'E808:')
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78 endfunc
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80 func Test_asin()
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81 call assert_equal('0.0', string(asin(0.0)))
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82 call assert_equal('1.570796', string(asin(1.0)))
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83 eval 1.0->asin()->string()->assert_equal('1.570796')
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84
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85 call assert_equal('-0.523599', string(asin(-0.5)))
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86 call assert_equal('nan', string(asin(1.1)))
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87 call assert_equal('nan', string(asin(1.0/0.0)))
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88 call assert_equal('nan', string(asin(0.0/0.0)))
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89 call assert_fails('call asin("")', 'E808:')
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90 endfunc
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92 func Test_sinh()
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93 call assert_equal('0.0', string(sinh(0.0)))
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94 call assert_equal('0.521095', string(sinh(0.5)))
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95 call assert_equal('-1.026517', string(sinh(-0.9)))
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96 eval -0.9->sinh()->string()->assert_equal('-1.026517')
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97 call assert_equal('inf', string(sinh(1.0/0.0)))
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98 call assert_equal('-inf', string(sinh(-1.0/0.0)))
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99 call assert_equal('nan', string(sinh(0.0/0.0)))
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100 call assert_fails('call sinh("")', 'E808:')
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101 endfunc
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103 func Test_cos()
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104 call assert_equal('1.0', string(cos(0.0)))
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105 call assert_equal('0.540302', string(cos(1.0)))
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106 call assert_equal('0.877583', string(cos(-0.5)))
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107 eval -0.5->cos()->string()->assert_equal('0.877583')
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108 call assert_equal('nan', string(cos(0.0/0.0)))
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109 call assert_equal('nan', string(cos(1.0/0.0)))
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110 call assert_fails('call cos("")', 'E808:')
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111 endfunc
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112
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113 func Test_acos()
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114 call assert_equal('1.570796', string(acos(0.0)))
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115 call assert_equal('0.0', string(acos(1.0)))
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116 call assert_equal('3.141593', string(acos(-1.0)))
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117 eval -1.0->acos()->string()->assert_equal('3.141593')
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118 call assert_equal('2.094395', string(acos(-0.5)))
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119 call assert_equal('nan', string(acos(1.1)))
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120 call assert_equal('nan', string(acos(1.0/0.0)))
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121 call assert_equal('nan', string(acos(0.0/0.0)))
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122 call assert_fails('call acos("")', 'E808:')
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123 endfunc
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124
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125 func Test_cosh()
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126 call assert_equal('1.0', string(cosh(0.0)))
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127 call assert_equal('1.127626', string(cosh(0.5)))
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128 eval 0.5->cosh()->string()->assert_equal('1.127626')
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129 call assert_equal('inf', string(cosh(1.0/0.0)))
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130 call assert_equal('inf', string(cosh(-1.0/0.0)))
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131 call assert_equal('nan', string(cosh(0.0/0.0)))
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132 call assert_fails('call cosh("")', 'E808:')
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133 endfunc
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134
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135 func Test_tan()
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136 call assert_equal('0.0', string(tan(0.0)))
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137 call assert_equal('0.546302', string(tan(0.5)))
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138 call assert_equal('-0.546302', string(tan(-0.5)))
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139 eval -0.5->tan()->string()->assert_equal('-0.546302')
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140 call assert_equal('nan', string(tan(1.0/0.0)))
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141 call assert_equal('nan', string(cos(0.0/0.0)))
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142 call assert_equal('0.0', string(tan(1.0/(1.0/0.0))))
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143 call assert_equal('-0.0', string(tan(-1.0/(1.0/0.0))))
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144 call assert_fails('call tan("")', 'E808:')
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145 endfunc
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146
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147 func Test_atan()
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148 call assert_equal('0.0', string(atan(0.0)))
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149 call assert_equal('0.463648', string(atan(0.5)))
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150 call assert_equal('-0.785398', string(atan(-1.0)))
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151 eval -1.0->atan()->string()->assert_equal('-0.785398')
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152 call assert_equal('1.570796', string(atan(1.0/0.0)))
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153 call assert_equal('-1.570796', string(atan(-1.0/0.0)))
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154 call assert_equal('nan', string(atan(0.0/0.0)))
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155 call assert_fails('call atan("")', 'E808:')
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156 endfunc
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157
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158 func Test_atan2()
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159 call assert_equal('-2.356194', string(atan2(-1, -1)))
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160 call assert_equal('2.356194', string(atan2(1, -1)))
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161 call assert_equal('0.0', string(atan2(1.0, 1.0/0.0)))
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162 eval 1.0->atan2(1.0/0.0)->string()->assert_equal('0.0')
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163 call assert_equal('1.570796', string(atan2(1.0/0.0, 1.0)))
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164 call assert_equal('nan', string(atan2(0.0/0.0, 1.0)))
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165 call assert_fails('call atan2("", -1)', 'E808:')
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166 call assert_fails('call atan2(-1, "")', 'E808:')
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167 endfunc
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168
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169 func Test_tanh()
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170 call assert_equal('0.0', string(tanh(0.0)))
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171 call assert_equal('0.462117', string(tanh(0.5)))
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172 call assert_equal('-0.761594', string(tanh(-1.0)))
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173 eval -1.0->tanh()->string()->assert_equal('-0.761594')
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174 call assert_equal('1.0', string(tanh(1.0/0.0)))
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175 call assert_equal('-1.0', string(tanh(-1.0/0.0)))
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176 call assert_equal('nan', string(tanh(0.0/0.0)))
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177 call assert_fails('call tanh("")', 'E808:')
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178 endfunc
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179
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180 func Test_fmod()
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181 call assert_equal('0.13', string(fmod(12.33, 1.22)))
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182 call assert_equal('-0.13', string(fmod(-12.33, 1.22)))
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183 call assert_equal('nan', string(fmod(1.0/0.0, 1.0)))
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184 eval (1.0/0.0)->fmod(1.0)->string()->assert_equal('nan')
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185 " On Windows we get "nan" instead of 1.0, accept both.
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186 let res = string(fmod(1.0, 1.0/0.0))
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187 if res != 'nan'
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188 call assert_equal('1.0', res)
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189 endif
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190 call assert_equal('nan', string(fmod(1.0, 0.0)))
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191 call assert_fails("call fmod('', 1.22)", 'E808:')
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192 call assert_fails("call fmod(12.33, '')", 'E808:')
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193 endfunc
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194
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195 func Test_pow()
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196 call assert_equal('1.0', string(pow(0.0, 0.0)))
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197 call assert_equal('8.0', string(pow(2.0, 3.0)))
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198 eval 2.0->pow(3.0)->string()->assert_equal('8.0')
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199 call assert_equal('nan', string(pow(2.0, 0.0/0.0)))
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200 call assert_equal('nan', string(pow(0.0/0.0, 3.0)))
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201 call assert_equal('nan', string(pow(0.0/0.0, 3.0)))
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202 call assert_equal('inf', string(pow(2.0, 1.0/0.0)))
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203 call assert_equal('inf', string(pow(1.0/0.0, 3.0)))
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204 call assert_fails("call pow('', 2.0)", 'E808:')
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205 call assert_fails("call pow(2.0, '')", 'E808:')
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206 endfunc
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207
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208 func Test_str2float()
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209 call assert_equal('1.0', string(str2float('1')))
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210 call assert_equal('1.0', string(str2float(' 1 ')))
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211 call assert_equal('1.0', string(str2float(' 1.0 ')))
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212 call assert_equal('1.23', string(str2float('1.23')))
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213 call assert_equal('1.23', string(str2float('1.23abc')))
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214 eval '1.23abc'->str2float()->string()->assert_equal('1.23')
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215 call assert_equal('1.0e40', string(str2float('1e40')))
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216 call assert_equal('-1.23', string(str2float('-1.23')))
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217 call assert_equal('1.23', string(str2float(' + 1.23 ')))
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218
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219 call assert_equal('1.0', string(str2float('+1')))
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220 call assert_equal('1.0', string(str2float('+1')))
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221 call assert_equal('1.0', string(str2float(' +1 ')))
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222 call assert_equal('1.0', string(str2float(' + 1 ')))
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223
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224 call assert_equal('-1.0', string(str2float('-1')))
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225 call assert_equal('-1.0', string(str2float('-1')))
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226 call assert_equal('-1.0', string(str2float(' -1 ')))
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227 call assert_equal('-1.0', string(str2float(' - 1 ')))
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228
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229 call assert_equal('0.0', string(str2float('+0.0')))
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230 call assert_equal('-0.0', string(str2float('-0.0')))
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231 call assert_equal('inf', string(str2float('1e1000')))
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232 call assert_equal('inf', string(str2float('inf')))
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233 call assert_equal('-inf', string(str2float('-inf')))
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234 call assert_equal('inf', string(str2float('+inf')))
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235 call assert_equal('inf', string(str2float('Inf')))
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236 call assert_equal('inf', string(str2float(' +inf ')))
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237 call assert_equal('nan', string(str2float('nan')))
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238 call assert_equal('nan', string(str2float('NaN')))
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239 call assert_equal('nan', string(str2float(' nan ')))
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240
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241 call assert_fails("call str2float(1.2)", 'E806:')
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242 call assert_fails("call str2float([])", 'E730:')
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243 call assert_fails("call str2float({})", 'E731:')
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244 call assert_fails("call str2float(function('string'))", 'E729:')
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245 endfunc
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246
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247 func Test_float2nr()
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248 call assert_equal(1, float2nr(1.234))
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249 call assert_equal(123, float2nr(1.234e2))
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250 call assert_equal(12, float2nr(123.4e-1))
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251 eval 123.4e-1->float2nr()->assert_equal(12)
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252 let max_number = 1/0
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253 let min_number = -max_number
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254 call assert_equal(max_number/2+1, float2nr(pow(2, 62)))
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255 call assert_equal(max_number, float2nr(pow(2, 63)))
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256 call assert_equal(max_number, float2nr(pow(2, 64)))
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257 call assert_equal(min_number/2-1, float2nr(-pow(2, 62)))
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258 call assert_equal(min_number, float2nr(-pow(2, 63)))
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259 call assert_equal(min_number, float2nr(-pow(2, 64)))
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260 endfunc
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261
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262 func Test_floor()
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263 call assert_equal('2.0', string(floor(2.0)))
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264 call assert_equal('2.0', string(floor(2.11)))
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265 call assert_equal('2.0', string(floor(2.99)))
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266 eval 2.99->floor()->string()->assert_equal('2.0')
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267 call assert_equal('-3.0', string(floor(-2.11)))
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268 call assert_equal('-3.0', string(floor(-2.99)))
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269 call assert_equal('nan', string(floor(0.0/0.0)))
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270 call assert_equal('inf', string(floor(1.0/0.0)))
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271 call assert_equal('-inf', string(floor(-1.0/0.0)))
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272 call assert_fails("call floor('')", 'E808:')
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273 endfunc
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275 func Test_ceil()
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276 call assert_equal('2.0', string(ceil(2.0)))
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277 call assert_equal('3.0', string(ceil(2.11)))
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278 call assert_equal('3.0', string(ceil(2.99)))
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279 call assert_equal('-2.0', string(ceil(-2.11)))
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280 eval -2.11->ceil()->string()->assert_equal('-2.0')
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281 call assert_equal('-2.0', string(ceil(-2.99)))
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282 call assert_equal('nan', string(ceil(0.0/0.0)))
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283 call assert_equal('inf', string(ceil(1.0/0.0)))
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284 call assert_equal('-inf', string(ceil(-1.0/0.0)))
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285 call assert_fails("call ceil('')", 'E808:')
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286 endfunc
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288 func Test_round()
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289 call assert_equal('2.0', string(round(2.1)))
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290 call assert_equal('3.0', string(round(2.5)))
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291 call assert_equal('3.0', string(round(2.9)))
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292 eval 2.9->round()->string()->assert_equal('3.0')
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293 call assert_equal('-2.0', string(round(-2.1)))
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294 call assert_equal('-3.0', string(round(-2.5)))
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295 call assert_equal('-3.0', string(round(-2.9)))
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296 call assert_equal('nan', string(round(0.0/0.0)))
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297 call assert_equal('inf', string(round(1.0/0.0)))
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298 call assert_equal('-inf', string(round(-1.0/0.0)))
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299 call assert_fails("call round('')", 'E808:')
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300 endfunc
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301
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302 func Test_trunc()
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303 call assert_equal('2.0', string(trunc(2.1)))
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304 call assert_equal('2.0', string(trunc(2.5)))
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305 call assert_equal('2.0', string(trunc(2.9)))
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306 eval 2.9->trunc()->string()->assert_equal('2.0')
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307 call assert_equal('-2.0', string(trunc(-2.1)))
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308 call assert_equal('-2.0', string(trunc(-2.5)))
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309 call assert_equal('-2.0', string(trunc(-2.9)))
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310 call assert_equal('nan', string(trunc(0.0/0.0)))
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311 call assert_equal('inf', string(trunc(1.0/0.0)))
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312 call assert_equal('-inf', string(trunc(-1.0/0.0)))
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313 call assert_fails("call trunc('')", 'E808:')
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314 endfunc
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315
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316 func Test_isinf()
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317 call assert_equal(1, isinf(1.0/0.0))
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318 call assert_equal(-1, isinf(-1.0/0.0))
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319 eval (-1.0/0.0)->isinf()->assert_equal(-1)
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320 call assert_false(isinf(1.0))
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321 call assert_false(isinf(0.0/0.0))
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322 call assert_false(isinf('a'))
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323 call assert_false(isinf([]))
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324 call assert_false(isinf({}))
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325 endfunc
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326
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327 func Test_isnan()
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328 call assert_true(isnan(0.0/0.0))
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329 call assert_false(isnan(1.0))
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330 call assert_false(isnan(1.0/0.0))
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331 eval (1.0/0.0)->isnan()->assert_false()
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332 call assert_false(isnan(-1.0/0.0))
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333 call assert_false(isnan('a'))
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334 call assert_false(isnan([]))
2c33b119ba92 patch 8.1.1111: it is not easy to check for infinity
Bram Moolenaar <Bram@vim.org>
parents: 11461
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335 call assert_false(isnan({}))
10532
80b50e43e382 commit https://github.com/vim/vim/commit/453b576ee5d32e9b8e6876712748ae01f9be68dd
Christian Brabandt <cb@256bit.org>
parents:
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336 endfunc
11461
5be73ebf6a15 patch 8.0.0614: float2nr() is not exactly right
Christian Brabandt <cb@256bit.org>
parents: 10557
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337
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Christian Brabandt <cb@256bit.org>
parents: 10557
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338 " This was converted from test65
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Christian Brabandt <cb@256bit.org>
parents: 10557
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339 func Test_float_misc()
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Christian Brabandt <cb@256bit.org>
parents: 10557
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340 call assert_equal('123.456000', printf('%f', 123.456))
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Christian Brabandt <cb@256bit.org>
parents: 10557
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341 call assert_equal('1.234560e+02', printf('%e', 123.456))
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Christian Brabandt <cb@256bit.org>
parents: 10557
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342 call assert_equal('123.456', printf('%g', 123.456))
5be73ebf6a15 patch 8.0.0614: float2nr() is not exactly right
Christian Brabandt <cb@256bit.org>
parents: 10557
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343 " +=
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Christian Brabandt <cb@256bit.org>
parents: 10557
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344 let v = 1.234
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Christian Brabandt <cb@256bit.org>
parents: 10557
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345 let v += 6.543
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Christian Brabandt <cb@256bit.org>
parents: 10557
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346 call assert_equal('7.777', printf('%g', v))
5be73ebf6a15 patch 8.0.0614: float2nr() is not exactly right
Christian Brabandt <cb@256bit.org>
parents: 10557
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347 let v = 1.234
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Christian Brabandt <cb@256bit.org>
parents: 10557
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348 let v += 5
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Christian Brabandt <cb@256bit.org>
parents: 10557
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349 call assert_equal('6.234', printf('%g', v))
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Christian Brabandt <cb@256bit.org>
parents: 10557
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350 let v = 5
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Christian Brabandt <cb@256bit.org>
parents: 10557
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351 let v += 3.333
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Christian Brabandt <cb@256bit.org>
parents: 10557
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352 call assert_equal('8.333', string(v))
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Christian Brabandt <cb@256bit.org>
parents: 10557
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353 " ==
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Christian Brabandt <cb@256bit.org>
parents: 10557
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354 let v = 1.234
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Christian Brabandt <cb@256bit.org>
parents: 10557
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355 call assert_true(v == 1.234)
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Christian Brabandt <cb@256bit.org>
parents: 10557
diff changeset
356 call assert_false(v == 1.2341)
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Christian Brabandt <cb@256bit.org>
parents: 10557
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357 " add-subtract
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Christian Brabandt <cb@256bit.org>
parents: 10557
diff changeset
358 call assert_equal('5.234', printf('%g', 4 + 1.234))
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Christian Brabandt <cb@256bit.org>
parents: 10557
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359 call assert_equal('-6.766', printf('%g', 1.234 - 8))
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Christian Brabandt <cb@256bit.org>
parents: 10557
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360 " mult-div
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Christian Brabandt <cb@256bit.org>
parents: 10557
diff changeset
361 call assert_equal('4.936', printf('%g', 4 * 1.234))
5be73ebf6a15 patch 8.0.0614: float2nr() is not exactly right
Christian Brabandt <cb@256bit.org>
parents: 10557
diff changeset
362 call assert_equal('0.003241', printf('%g', 4.0 / 1234))
5be73ebf6a15 patch 8.0.0614: float2nr() is not exactly right
Christian Brabandt <cb@256bit.org>
parents: 10557
diff changeset
363 " dict
5be73ebf6a15 patch 8.0.0614: float2nr() is not exactly right
Christian Brabandt <cb@256bit.org>
parents: 10557
diff changeset
364 call assert_equal("{'x': 1.234, 'y': -2.0e20}", string({'x': 1.234, 'y': -2.0e20}))
5be73ebf6a15 patch 8.0.0614: float2nr() is not exactly right
Christian Brabandt <cb@256bit.org>
parents: 10557
diff changeset
365 " list
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Christian Brabandt <cb@256bit.org>
parents: 10557
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366 call assert_equal('[-123.4, 2.0e-20]', string([-123.4, 2.0e-20]))
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Christian Brabandt <cb@256bit.org>
parents: 10557
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367 endfunc
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Christian Brabandt <cb@256bit.org>
parents: 10557
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368
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Christian Brabandt <cb@256bit.org>
parents: 10557
diff changeset
369 " vim: shiftwidth=2 sts=2 expandtab