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annotate druntime/src/compiler/dmd/typeinfo/ti_Areal.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) 2004-2006 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_Areal;
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25
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26 private import typeinfo.ti_real;
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27
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28 // real[]
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29
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30 class TypeInfo_Ae : TypeInfo
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31 {
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32 override string toString() { return "real[]"; }
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33
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34 override hash_t getHash(in void* p)
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35 { real[] s = *cast(real[]*)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 hash += (cast(ushort *)str)[4];
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46 str++;
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47 len--;
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48 }
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49
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50 return hash;
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51 }
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52
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53 override equals_t equals(in void* p1, in void* p2)
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54 {
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55 real[] s1 = *cast(real[]*)p1;
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56 real[] s2 = *cast(real[]*)p2;
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57 size_t len = s1.length;
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58
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59 if (len != s2.length)
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60 return false;
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61 for (size_t u = 0; u < len; u++)
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62 {
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63 if (!TypeInfo_e._equals(s1[u], s2[u]))
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64 return false;
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65 }
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66 return true;
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67 }
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68
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69 override int compare(in void* p1, in void* p2)
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70 {
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71 real[] s1 = *cast(real[]*)p1;
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72 real[] s2 = *cast(real[]*)p2;
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73 size_t len = s1.length;
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74
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75 if (s2.length < len)
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76 len = s2.length;
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77 for (size_t u = 0; u < len; u++)
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78 {
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79 int c = TypeInfo_e._compare(s1[u], s2[u]);
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80 if (c)
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81 return c;
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82 }
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83 if (s1.length < s2.length)
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84 return -1;
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85 else if (s1.length > s2.length)
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86 return 1;
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87 return 0;
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88 }
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89
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90 override size_t tsize()
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91 {
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92 return (real[]).sizeof;
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93 }
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94
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95 override uint flags()
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96 {
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97 return 1;
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98 }
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99
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100 override TypeInfo next()
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101 {
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102 return typeid(real);
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103 }
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104 }
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105
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106 // ireal[]
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107
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108 class TypeInfo_Aj : TypeInfo_Ae
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109 {
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110 override string toString() { return "ireal[]"; }
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111
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112 override TypeInfo next()
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113 {
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114 return typeid(ireal);
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115 }
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116 }