Mercurial > projects > ldc
annotate lphobos/typeinfo1/ti_float.d @ 1064:f0b6549055ab
Make LDC work with LLVM trunk (s/LinkOnceLinkage/LinkOnceOdrLinkage/)
Also moved the #defines for linkage types into a separate header instead of
mars.h so we can #include revisions.h without having to rebuild the entire
frontend every time we update.
(I'm using revisions.h to get the LLVM revision for use in preprocessor
conditionals. It should work with LLVM release 2.5, old trunk and new trunk)
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Sun, 08 Mar 2009 16:13:10 +0100 |
parents | 373489eeaf90 |
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2 // float |
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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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15 |
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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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20 |
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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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26 |
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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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40 |
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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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45 |
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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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50 |
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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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55 |
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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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59 |
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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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64 |
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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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70 |