http://d.puremagic.com/issues/show_bug.cgi?id=8328
Summary: Mind Blowing error (possibly in DMD or std.variant)
Product: D
Version: D2
Platform: x86_64
OS/Version: Linux
Status: NEW
Severity: critical
Priority: P2
Component: DMD
AssignedTo: nob...@puremagic.com
ReportedBy: icepa...@gmail.com
--- Comment #0 from Isak Andersson <icepa...@gmail.com> 2012-06-30 17:04:36 PDT
---
Created an attachment (id=1122)
The minimal source tree that is giving the error
Hello lovely D folks!
I have been dealing with this incredibly strange error that I don't really even
know how to describe because I can't understand what's causing it. I can really
just show you.
Here's the quick scoop if you don't want to download stuff etc:
https://gist.github.com/3025946
Anyways here's everything I can say,
Assuming the following tree:
./
├── bin
├── lib
│ ├── import
│ │ └── gl3n
│ │ ├── color
│ │ │ └── hsv.di
│ │ ├── interpolate.di
│ │ ├── linalg.di
│ │ ├── math.di
│ │ └── util.di
│ ├── libgl3n-dmd.a
|
├── reducedt.reduced
│ ├── build (HERE IS WHERE YOU RUN THE COMPILE COMMAND..)
│ │ └── empty
│ └── torment
│ ├── component
│ │ ├── all.d
│ │ ├── component.d
│ │ └── render.d
│ ├── entity
│ │ └── camera.d
│ ├── math
│ │ └── vector.d
│ └── scene
│ └── scene.d
compiling with "dmd -g -debug -property -w -wi -I../../lib/import
-L-L../../lib/ -L-lgl3n-dmd -of../../bin/execute_me ../torment/component/all.d
../torment/component/component.d ../torment/component/render.d
../torment/scene/scene.d ../torment/math/vector.d ../torment/entity/camera"
outputs the following error:
../torment/scene/scene.d(3): Error: cannot compare
const(VariantN!(1LU,RenderComponent)[]) and
const(VariantN!(1LU,RenderComponent)[])
The line it's complaining about (3) looks like:
struct Scene {
And I don't know what to make of that. I've tried reducing (in fact the tree
you are looking at is *very* reduced) so I have the minimal case of failure
here. I have attached the tree (including lib imports and the .a file compiled
for 64bit linux) so you can try compiling for yourself. I've tried it on two
computers - both 64bit linux though so I don't know if that's got anything to
do with the problem.
At this point I don't know if this is my fault or dmd's fault or phobos'. I
assume it's the compiler but I can't know for sure. I marked this bug as
critical because it has completely stalled the development of my project for
two days now. And that does not give me a good feeling at all. I really *need*
to get on with it!
I just feel like this either is out of my hands, or just me doing something
obviously wrong and is not getting it. But nobody in irc seems to know what's
wrong either. So I am submitting this here.
Thank you!
-- Isak Andersson
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