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annotate lphobos/typeinfo1/ti_float.d @ 883:b52d5de7783f

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GC defines and linkage changes.
author Christian Kamm <kamm incasoftware de>
date Thu, 08 Jan 2009 18:20:02 +0100
parents 373489eeaf90
children
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2 // float
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3
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2c3cd3596187 [svn r62] Added support for TypeInfo _Array, _Function, _Pointer, _Delegate, _Enum
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4 module typeinfo1.ti_float;
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6 import std.gc: malloc;
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7 class TypeInfo_f : TypeInfo
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8 {
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9 char[] toString() { return "float"; }
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10
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11 hash_t getHash(void *p)
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12 {
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13 return *cast(uint *)p;
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14 }
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16 static bool _isnan(float f)
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17 {
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18 return f !<>= 0;
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19 }
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21 static int _equals(float f1, float f2)
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22 {
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23 return f1 == f2 ||
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24 (_isnan(f1) && _isnan(f2));
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25 }
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27 static int _compare(float d1, float d2)
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28 {
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29 if (d1 !<>= d2) // if either are NaN
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30 {
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31 if (_isnan(d1))
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32 { if (_isnan(d2))
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33 return 0;
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34 return -1;
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35 }
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36 return 1;
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37 }
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38 return (d1 == d2) ? 0 : ((d1 < d2) ? -1 : 1);
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39 }
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41 int equals(void *p1, void *p2)
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42 {
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43 return _equals(*cast(float *)p1, *cast(float *)p2);
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44 }
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46 int compare(void *p1, void *p2)
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47 {
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48 return _compare(*cast(float *)p1, *cast(float *)p2);
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49 }
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51 size_t tsize()
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52 {
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53 return float.sizeof;
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54 }
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56 void swap(void *p1, void *p2)
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57 {
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58 float t;
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60 t = *cast(float *)p1;
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61 *cast(float *)p1 = *cast(float *)p2;
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62 *cast(float *)p2 = t;
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63 }
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65 void[] init()
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66 {
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67 return (cast(float*)malloc(float.sizeof))[0..1];
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68 }
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69 }
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