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annotate runtime/internal/typeinfo/ti_double.d @ 443:44f08170f4ef

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Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn. Reworked the LLVMDC specific pragmas.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Fri, 01 Aug 2008 00:32:06 +0200
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443
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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2 // double
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4 module typeinfo.ti_double;
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6 class TypeInfo_d : TypeInfo
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7 {
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8 char[] toString() { return "double"; }
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9
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10 hash_t getHash(void *p)
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11 {
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12 return (cast(uint *)p)[0] + (cast(uint *)p)[1];
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13 }
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14
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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15 static int _equals(double f1, double f2)
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16 {
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17 return f1 == f2 ||
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18 (f1 !<>= f1 && f2 !<>= f2);
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19 }
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21 static int _compare(double d1, double d2)
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22 {
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23 if (d1 !<>= d2) // if either are NaN
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24 {
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25 if (d1 !<>= d1)
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26 { if (d2 !<>= d2)
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27 return 0;
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28 return -1;
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29 }
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30 return 1;
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31 }
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32 return (d1 == d2) ? 0 : ((d1 < d2) ? -1 : 1);
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33 }
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34
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35 int equals(void *p1, void *p2)
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36 {
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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37 return _equals(*cast(double *)p1, *cast(double *)p2);
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38 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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39
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40 int compare(void *p1, void *p2)
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41 {
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42 return _compare(*cast(double *)p1, *cast(double *)p2);
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43 }
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44
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45 size_t tsize()
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46 {
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47 return double.sizeof;
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48 }
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49
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50 void swap(void *p1, void *p2)
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51 {
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52 double t;
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54 t = *cast(double *)p1;
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55 *cast(double *)p1 = *cast(double *)p2;
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56 *cast(double *)p2 = t;
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57 }
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59 void[] init()
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60 { static double r;
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62 return (cast(double *)&r)[0 .. 1];
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63 }
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64 }
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65