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comparison tango/lib/compiler/llvmdc/typeinfo/ti_real.d @ 132:1700239cab2e trunk

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[svn r136] MAJOR UNSTABLE UPDATE!!! Initial commit after moving to Tango instead of Phobos. Lots of bugfixes... This build is not suitable for most things.
author lindquist
date Fri, 11 Jan 2008 17:57:40 +0100
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131:5825d48b27d1 132:1700239cab2e
1
2 // real
3
4 module typeinfo.ti_real;
5
6 class TypeInfo_e : TypeInfo
7 {
8 char[] toString() { return "real"; }
9
10 hash_t getHash(void *p)
11 {
12 return (cast(uint *)p)[0] + (cast(uint *)p)[1] + (cast(ushort *)p)[4];
13 }
14
15 static int _equals(real f1, real f2)
16 {
17 return f1 == f2 ||
18 (f1 !<>= f1 && f2 !<>= f2);
19 }
20
21 static int _compare(real d1, real 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 int equals(void *p1, void *p2)
36 {
37 return _equals(*cast(real *)p1, *cast(real *)p2);
38 }
39
40 int compare(void *p1, void *p2)
41 {
42 return _compare(*cast(real *)p1, *cast(real *)p2);
43 }
44
45 size_t tsize()
46 {
47 return real.sizeof;
48 }
49
50 void swap(void *p1, void *p2)
51 {
52 real t;
53
54 t = *cast(real *)p1;
55 *cast(real *)p1 = *cast(real *)p2;
56 *cast(real *)p2 = t;
57 }
58
59 void[] init()
60 { static real r;
61
62 return (cast(real *)&r)[0 .. 1];
63 }
64 }