Wow weird, I missed your post in it's entirety. Yardanico on IRC/Gitter also
got the same error so it I don't think it's something that's wrong locally.
Anyway I couldn't solve it,
I opened a GitHub issue here:
[https://github.com/nim-lang/Nim/issues/13785](https://github.com/nim-lang/Nim/issue
I seem to be able to reproduce the problem on the playground too:
[https://play.nim-lang.org/#ix=2fGO](https://play.nim-lang.org/#ix=2fGO)
If you uncomment the lines in the suite it'll error out. So the problem wasn't
with == but with something I'm setup-ing wrong in the suite I guess.. I'll
ti
It is hard to believe that it is OS related, but maybe it is. I did my test on
Linux 64 bit.
Maybe you can ask on IRC hoping that someone has the same OS and Nim version as
you.
First I had the impression that it may be related to other packages that you
may have installed, but when you do not
If it works on the playground, and it works when you compile the snippet, whats
in your projects nimcache that is conflicting/overriding it? Can you clean the
nimcache and recompile everything?
Now, just for full disclosure, I have maybe 3 hours of Nim experience, but I
have done lots of portin
I'm not the smartest but I tried to postpone this thread as long as possible to
and try different things on my own, so I can't accept lazy man D: .
I can see why == is the main problem here, what blocks me is that it works fine
on the playground, also when I run that playground snippet on my loc
> no idea how to fix this
I think you are only lazy :-)
The general approach would be to shrink and simplify the code -- the core
problem seems to be the ==`() proc, so one would remove all what is not
necessary to test this proc, and maybe to modify or simplify that proc. For
example I would
See my project here:
[https://github.com/zetashift/naytracer](https://github.com/zetashift/naytracer)
the code I pasted in the playground comes from src/naytracerpkg/matrix.nim
having the definitations and tests/tmatrix.nim having the test.
The test fails for me on my local machine with a type
The code from the playground link above compiles and runs fine with my Nim
compiler, which is latest devil. Even with new --gc:arc option.
Ah sorry seems I posted a faulty link there, it all boils down too:
[https://play.nim-lang.org/#ix=2fBQ](https://play.nim-lang.org/#ix=2fBQ)
Well on my computer Nim compiler still throws the error out, I have no idea why
it compiles correctly on the playground because I literally copy pasted my code
blocks...
Andd thanks for the tip on the equals function, I got it from a quick google
and I thought it would suffice for this project
Fine that it works for you now.
For your equal test, I personally would never do it in that way, as with
physics background we may work with really tiny values like plank constant (6 *
10^-34) and many more really small values.
Maybe better somethink like
(a/b - 1.0).abs < 1e-12
So test() and check() are from the unittest module. As for my newMatrix
function:
func newMatrix*[W, H: static int](elements: array[W, array[H, float]]):
Matrix[W, H] =
result = elements
Run
My equals() function being this float comparison function:
> So with the == is where I'm getting that error.
I have no idea what exactly your newMatrix(), your equal(), your check() and
your test() is, so it is too hard for me to guess the error.
Ah yes I forgot I was using that function in a test like this:
test "getting the submatrix of a 4 x 4 matrix with row / column indicators":
check matrix4x4.submatrix(2, 1) == [[-6.0, 1.0, 6.0],
[-8.0, 8.0, 6.0],
Find at the top of the manual page only gives you proc/template/macro/etc
headers. I barely ever use it. Try searching the webpage manually using the the
find shortcut built into your web browser.
Currently also struggling with this type mismatch error with using this
function:
# Remove specified row and column
func submatrix*[W, H](m: Matrix[W, H], rowIdx, colIdx: int): Matrix[W - 1,
H - 1] =
for row in 0 .. high(m):
var resultRow = row
if row == ro
Your error message makes no sense for me, and your proc compiles fine for me:
type
Matrix*[W, H: static int] = array[W, array[H, float]]
func xsubmatrix*[W, H](m: Matrix[W, H]): Matrix[W - 1, H - 1] =
for row in 0 ..< high(m):
for col in 0 ..< high(m[0]):
I didn't know you could do that with generics damn.
My initiation function needs a rework with your solution, previously I had:
func newMatrix*[W, H](elements: array[W, array[H, float]]): Matrix[W, H] =
result = elements
Run
But with that I get the error:
You may try
type
Matrix*[W, H: static int] = array[W, array[H, float]]
func submatrix*[W, H](m: Matrix[W, H]): Matrix[W - 1, H - 1] =
for row in 0 ..< high(m):
for col in 0 ..< high(m[0]):
result[row][col] = m[row][col]
var
m: Matr
I have this Matrix type defined as follows:
type
Matrix*[W, H] = array[W, array[H, float]]
Run
And for my raytracer I have to make a function that removes the last column and
row. But I can't get this right because my submatrix function always returns a
matrix o
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