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annotate druntime/src/compiler/ldc/typeinfo/ti_Adouble.d @ 759:d3eb054172f9

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Added copy of druntime from DMD 2.020 modified for LDC.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 11 Nov 2008 01:52:37 +0100
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759
d3eb054172f9 Added copy of druntime from DMD 2.020 modified for LDC.
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1 /*
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2 * Copyright (C) 2004-2005 by Digital Mars, www.digitalmars.com
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3 * Written by Walter Bright
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4 *
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5 * This software is provided 'as-is', without any express or implied
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6 * warranty. In no event will the authors be held liable for any damages
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7 * arising from the use of this software.
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8 *
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9 * Permission is granted to anyone to use this software for any purpose,
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10 * including commercial applications, and to alter it and redistribute it
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11 * freely, in both source and binary form, subject to the following
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12 * restrictions:
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13 *
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14 * o The origin of this software must not be misrepresented; you must not
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15 * claim that you wrote the original software. If you use this software
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16 * in a product, an acknowledgment in the product documentation would be
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17 * appreciated but is not required.
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18 * o Altered source versions must be plainly marked as such, and must not
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19 * be misrepresented as being the original software.
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20 * o This notice may not be removed or altered from any source
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21 * distribution.
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22 */
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23
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24 module rt.typeinfo.ti_Adouble;
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25
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26 private import typeinfo.ti_double;
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27
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28 // double[]
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29
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30 class TypeInfo_Ad : TypeInfo
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31 {
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32 override string toString() { return "double[]"; }
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33
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34 override hash_t getHash(in void* p)
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35 { double[] s = *cast(double[]*)p;
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36 size_t len = s.length;
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37 auto str = s.ptr;
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38 hash_t hash = 0;
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39
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40 while (len)
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41 {
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42 hash *= 9;
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43 hash += (cast(uint *)str)[0];
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44 hash += (cast(uint *)str)[1];
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45 str++;
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46 len--;
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47 }
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48
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49 return hash;
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50 }
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51
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52 override equals_t equals(in void* p1, in void* p2)
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53 {
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54 double[] s1 = *cast(double[]*)p1;
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55 double[] s2 = *cast(double[]*)p2;
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56 size_t len = s1.length;
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57
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58 if (len != s2.length)
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59 return 0;
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60 for (size_t u = 0; u < len; u++)
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61 {
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62 if (!TypeInfo_d._equals(s1[u], s2[u]))
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63 return false;
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64 }
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65 return true;
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66 }
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67
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68 override int compare(in void* p1, in void* p2)
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69 {
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70 double[] s1 = *cast(double[]*)p1;
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71 double[] s2 = *cast(double[]*)p2;
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72 size_t len = s1.length;
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73
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74 if (s2.length < len)
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75 len = s2.length;
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76 for (size_t u = 0; u < len; u++)
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77 {
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78 int c = TypeInfo_d._compare(s1[u], s2[u]);
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79 if (c)
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80 return c;
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81 }
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82 if (s1.length < s2.length)
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83 return -1;
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84 else if (s1.length > s2.length)
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85 return 1;
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86 return 0;
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87 }
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88
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89 override size_t tsize()
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90 {
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91 return (double[]).sizeof;
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92 }
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93
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94 override uint flags()
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95 {
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96 return 1;
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97 }
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98
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99 override TypeInfo next()
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100 {
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101 return typeid(double);
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102 }
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103 }
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104
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105 // idouble[]
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106
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107 class TypeInfo_Ap : TypeInfo_Ad
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108 {
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109 override string toString() { return "idouble[]"; }
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110
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111 override TypeInfo next()
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112 {
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113 return typeid(idouble);
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114 }
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115 }