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1 // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32test\math\t_gcc32.cpp |
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15 // From UP_GCC.CPP, for emulating UP_GCC in T_R32.CPP tests |
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16 // |
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17 // |
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18 |
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19 |
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20 #include <e32def.h> |
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21 #include <e32def_private.h> |
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22 |
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23 #include "t_math.h" |
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24 |
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25 LOCAL_C void MathException(TInt aErrType) |
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26 // |
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27 // Decides on type of maths exception according to error and raises exception. |
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28 // Added by AnnW, December 1996 |
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29 // |
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30 { |
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31 |
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32 TExcType excType=EExcGeneral; |
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33 |
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34 switch (aErrType) |
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35 { |
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36 case KErrArgument: // error due to invalid operation |
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37 excType=EExcFloatInvalidOperation; |
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38 break; |
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39 case KErrDivideByZero: |
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40 excType=EExcFloatDivideByZero; |
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41 break; |
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42 case KErrOverflow: |
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43 excType=EExcFloatOverflow; |
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44 break; |
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45 case KErrUnderflow: |
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46 excType=EExcFloatUnderflow; |
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47 break; |
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48 /* |
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49 // also errors due to inexact result |
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50 case KErrInexact: // const not defined yet |
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51 excType=EExcFloatInexact; |
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52 break; |
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53 */ |
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54 |
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55 default: |
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56 // Unknown error |
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57 User::Panic(_L("USER-Math"),EMathUnknownError); |
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58 } |
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59 |
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60 // RThread thread; |
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61 User::RaiseException(excType); |
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62 // thread.RaiseException(excType); |
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63 } |
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64 |
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65 GLDEF_C TReal32 __addsf3(TReal32 a1,TReal32 a2) |
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66 // |
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67 // Add two floats |
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68 // |
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69 { |
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70 |
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71 TRealX x1=a1; |
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72 TRealX x2=a2; |
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73 |
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74 TRealX res; |
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75 TReal32 trg; |
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76 x1.Add(res,x2); |
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77 TInt ret=res.GetTReal(trg); |
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78 if (ret!=KErrNone) |
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79 MathException(ret); |
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80 |
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81 return(trg); |
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82 } |
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83 |
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84 GLDEF_C TReal32 __subsf3(TReal32 a1,TReal32 a2) |
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85 // |
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86 // Subtract two floats |
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87 // |
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88 { |
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89 |
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90 TRealX x1=a1; |
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91 TRealX x2=a2; |
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92 |
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93 TRealX res; |
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94 TReal32 trg; |
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95 x1.Sub(res,x2); |
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96 TInt ret=res.GetTReal(trg); |
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97 if (ret!=KErrNone) |
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98 MathException(ret); |
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99 |
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100 return(trg); |
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101 } |
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102 |
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103 GLDEF_C TReal32 __mulsf3(TReal32 a1,TReal32 a2) |
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104 // |
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105 // Multiply two floats |
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106 // |
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107 { |
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108 |
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109 TRealX x1=a1; |
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110 TRealX x2=a2; |
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111 |
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112 TRealX res; |
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113 TReal32 trg; |
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114 TInt ret=x1.Mult(res,x2); |
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115 if (ret==KErrNone) |
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116 ret=res.GetTReal(trg); |
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117 if (ret!=KErrNone) |
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118 MathException(ret); |
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119 |
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120 return((TReal32)res); |
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121 } |
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122 |
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123 GLDEF_C TReal32 __divsf3(TReal32 a1,TReal32 a2) |
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124 // |
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125 // Divide two floats |
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126 // |
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127 { |
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128 |
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129 TRealX x1=a1; |
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130 TRealX x2=a2; |
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131 |
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132 TRealX res; |
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133 TReal32 trg; |
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134 TInt ret=x1.Div(res,x2); |
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135 if (ret==KErrNone) |
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136 ret=res.GetTReal(trg); |
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137 if (ret!=KErrNone) |
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138 MathException(ret); |
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139 |
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140 return((TReal32)res); |
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141 } |
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142 |
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143 GLDEF_C TReal32 __truncdfsf2(TReal64 a1) |
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144 // |
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145 // Convert a double to a float |
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146 // Raises an exception if conversion results in an error |
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147 // |
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148 { |
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149 |
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150 TRealX x1=a1; |
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151 |
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152 TInt ret; |
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153 TReal32 trg; |
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154 if ((ret=x1.GetTReal(trg))!=KErrNone) |
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155 MathException(ret); |
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156 |
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157 return(trg); |
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158 } |
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159 |
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160 |