Tricky DMD bug, but I have no idea how to report
666total at wp.pl
Fri Feb 8 23:36:03 UTC 2019
On Friday, 8 February 2019 at 23:30:44 UTC, H. S. Teoh wrote:
> On Fri, Feb 08, 2019 at 10:45:39PM +0000, JN via
> Digitalmars-d-learn wrote: [...]
>> Anyway, I reduced the code further manually. It's very hard to
>> reduce it any further. For example, removing the assignments
>> in fromEulerAngles static method hides the bug. Likewise,
>> replacing writeln with assert makes it work properly too.
> Pity we couldn't get rid of std.stdio. It's a pretty big piece
> of code, and there are plenty of places where it may go wrong
> inside, even though we generally expect that the bug lies
> elsewhere. Oh well. Hopefully somebody else can dig into this
> and figure out what's going on.
> Hmm. I just glanced over the std.stdio code... it appears that
> somebody has added @trusted all over the place, probably just
> to get it to compile with @safe. That's kinda scary...
> somebody needs to vet this code carefully to make sure nothing
> fishy's going on in there!
I can replace it with core.stdc.stdio if it's any better. Looks
like any attempt to do a check for "x is null" hides the bug. I
tried assert(), also tried if (x is null) throw new Exception(...)
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