digitalmars.D.learn - strange resuts with .stringof and template
|import std.stdio;
|
|template T(A...){alias A T;}
|struct Baz
|{
| template Bar(char[] str)
| {
| pragma(msg,"B:"~str);
| bool Bar;
| }
|}
|
|void main()
|{
| Baz v;
| foreach(i,j;T!(1,2,3,4))
| {
| static const char[] s = i.stringof;
| pragma(msg,"1:"~s);
| v.Bar!(s) = !!(j&0x01);
| writef("%d, %s : %s\n", i, v.Bar!(i.stringof), !!(j&0x01));
| }
| writef("\n");
| foreach(i,j;T!(1,2,3,4))
| {
| static const char[] s = i.stringof;
| pragma(msg,"2:"~s);
| writef("%d, %s : %s\n", i, v.Bar!(s), !!(j&0x01));
| }
|}
compiles outputting:
1:0
B:0
B:uint
1:1
1:2
1:3
2:0
2:1
2:2
2:3
should be
1:0
B:0
1:1
B:1
1:2
B:2
1:3
B:3
2:0
2:1
2:2
2:3
runs giving:
0, true : true
1, false : false
2, true : true
3, false : false
0, false : true
1, false : false
2, false : true
3, false : false
Jul 20 2007
BCS wrote:
|import std.stdio;
|
|template T(A...){alias A T;}
|struct Baz
|{
| template Bar(char[] str)
| {
| pragma(msg,"B:"~str);
| bool Bar;
| }
|}
|
|void main()
|{
| Baz v;
| foreach(i,j;T!(1,2,3,4))
| {
| static const char[] s = i.stringof;
| pragma(msg,"1:"~s);
| v.Bar!(s) = !!(j&0x01);
| writef("%d, %s : %s\n", i, v.Bar!(i.stringof), !!(j&0x01));
| }
| writef("\n");
| foreach(i,j;T!(1,2,3,4))
| {
| static const char[] s = i.stringof;
| pragma(msg,"2:"~s);
| writef("%d, %s : %s\n", i, v.Bar!(s), !!(j&0x01));
| }
|}
compiles outputting:
1:0
B:0
B:uint
1:1
1:2
1:3
2:0
2:1
2:2
2:3
should be
1:0
B:0
1:1
B:1
1:2
B:2
1:3
B:3
2:0
2:1
2:2
2:3
This is probably Issue 1168, without looking too closely at your code.
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Jul 31 2007








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