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comparison dmd/expression/Shr.d @ 0:10317f0c89a5

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Initial commit
author korDen
date Sat, 24 Oct 2009 08:42:06 +0400
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children e28b18c23469
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-1:000000000000 0:10317f0c89a5
1 module dmd.expression.Shr;
2
3 import dmd.Expression;
4 import dmd.Type;
5 import dmd.Loc;
6 import dmd.IntegerExp;
7 import dmd.TY;
8
9 Expression Shr(Type type, Expression e1, Expression e2)
10 {
11 Loc loc = e1.loc;
12
13 long value = e1.toInteger();
14 uint count = cast(uint)e2.toInteger();
15
16 switch (e1.type.toBasetype().ty)
17 {
18 case TY.Tint8:
19 value = cast(byte)(value) >> count;
20 break;
21
22 case TY.Tuns8:
23 value = cast(ubyte)(value) >> count;
24 break;
25
26 case TY.Tint16:
27 value = cast(short)(value) >> count;
28 break;
29
30 case TY.Tuns16:
31 value = cast(ushort)(value) >> count;
32 break;
33
34 case TY.Tint32:
35 value = cast(int)(value) >> count;
36 break;
37
38 case TY.Tuns32:
39 value = cast(uint)(value) >> count;
40 break;
41
42 case TY.Tint64:
43 value = cast(long)(value) >> count;
44 break;
45
46 case TY.Tuns64:
47 value = cast(ulong)(value) >> count;
48 break;
49 }
50
51 return new IntegerExp(loc, value, type);
52 }