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comparison druntime/src/compiler/dmd/typeinfo/ti_float.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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758:f04dde6e882c 759:d3eb054172f9
1
2 // float
3
4 module rt.typeinfo.ti_float;
5
6 class TypeInfo_f : TypeInfo
7 {
8 override string toString() { return "float"; }
9
10 override hash_t getHash(in void* p)
11 {
12 return *cast(uint *)p;
13 }
14
15 static equals_t _equals(float f1, float f2)
16 {
17 return f1 == f2 ||
18 (f1 !<>= f1 && f2 !<>= f2);
19 }
20
21 static int _compare(float d1, float d2)
22 {
23 if (d1 !<>= d2) // if either are NaN
24 {
25 if (d1 !<>= d1)
26 { if (d2 !<>= d2)
27 return 0;
28 return -1;
29 }
30 return 1;
31 }
32 return (d1 == d2) ? 0 : ((d1 < d2) ? -1 : 1);
33 }
34
35 override equals_t equals(in void* p1, in void* p2)
36 {
37 return _equals(*cast(float *)p1, *cast(float *)p2);
38 }
39
40 override int compare(in void* p1, in void* p2)
41 {
42 return _compare(*cast(float *)p1, *cast(float *)p2);
43 }
44
45 override size_t tsize()
46 {
47 return float.sizeof;
48 }
49
50 override void swap(void *p1, void *p2)
51 {
52 float t;
53
54 t = *cast(float *)p1;
55 *cast(float *)p1 = *cast(float *)p2;
56 *cast(float *)p2 = t;
57 }
58
59 override void[] init()
60 { static float r;
61
62 return (cast(float *)&r)[0 .. 1];
63 }
64 }