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September 16, 2012 Regression in 2.060 - corruption when lambda closes over foreach variable | ||||
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Hi, I have some code which has started breaking as of 2.060. I've simplified it down to the following: ------------ import std.stdio; void main() { broken(); reffix(); noclosefix(); } void broken() { foreach (z; 0..1) { writeln(z); //Corrupt () {writeln(z);} (); //Corrupt (same) } } //Adding 'ref' fixes it: void reffix() { foreach (ref z; 0..1) { writeln(z); //0 () {writeln(z);} (); //0 } } //It only breaks if 'z' is closed into the lambda: void noclosefix() { foreach (z; 0..1) { writeln(z); //0 int z2=z; () {writeln(z2);} (); //0 } } ------------ The sort of corrupt values I see for z are for example 28835840 = 0x01B80000 29949952 = 0x01C90000 38535168 = 0x024C0000 36110336 = 0x02270000 But it's always the same between one writeln and the other. Also breaks with foreach_reverse. I'm compiling with no switches at all, just "dmd filename.d". I'm compiling with debug, without optimisations. Anyone fancy taking a look? Thanks, Ben :) |
September 16, 2012 Re: Regression in 2.060 - corruption when lambda closes over foreach variable | ||||
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Posted in reply to Ben Davis | Sorry, the second "I'm compiling with" is a lie. (Edited it out below.)
On 17/09/2012 00:16, Ben Davis wrote:
> Hi,
>
> I have some code which has started breaking as of 2.060. I've simplified
> it down to the following:
>
> ------------
>
> import std.stdio;
>
> void main() {
> broken();
> reffix();
> noclosefix();
> }
>
> void broken() {
> foreach (z; 0..1) {
> writeln(z); //Corrupt
> () {writeln(z);} (); //Corrupt (same)
> }
> }
>
> //Adding 'ref' fixes it:
> void reffix() {
> foreach (ref z; 0..1) {
> writeln(z); //0
> () {writeln(z);} (); //0
> }
> }
>
> //It only breaks if 'z' is closed into the lambda:
> void noclosefix() {
> foreach (z; 0..1) {
> writeln(z); //0
> int z2=z;
> () {writeln(z2);} (); //0
> }
> }
>
> ------------
>
> The sort of corrupt values I see for z are for example
> 28835840 = 0x01B80000
> 29949952 = 0x01C90000
> 38535168 = 0x024C0000
> 36110336 = 0x02270000
> But it's always the same between one writeln and the other.
>
> Also breaks with foreach_reverse.
>
> I'm compiling with no switches at all, just "dmd filename.d".
>
> Anyone fancy taking a look?
>
> Thanks,
>
> Ben :)
|
September 17, 2012 Re: Regression in 2.060 - corruption when lambda closes over foreach variable | ||||
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Posted in reply to Ben Davis | You should probably file that here: http://d.puremagic.com/issues/ |
September 18, 2012 Re: Regression in 2.060 - corruption when lambda closes over foreach variable | ||||
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Posted in reply to Nick Sabalausky | On 17/09/2012 07:02, Nick Sabalausky wrote: > You should probably file that here: > > http://d.puremagic.com/issues/ Done :) These two already existed: http://d.puremagic.com/issues/show_bug.cgi?id=8621 <-- posted here http://d.puremagic.com/issues/show_bug.cgi?id=8526 I guess they're probably duplicates. |
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