Support x86?

[fjebaker]

Hello! One of the CI runs for a project I'm working on uses Julia built for x86, where the default integer type is Int32. It failed to precompile GeometricalPredicates with the following error:

ERROR: LoadError: MethodError: no method matching quadrants(::Int32, ::Int32, ::Int32, ::Int32)
Stacktrace:
 [1] _init_inv_peano_3d()
   @ GeometricalPredicates ~/.julia/packages/GeometricalPredicates/1dBKW/src/GeometricalPredicates.jl:998

Why this happens is pretty clear in the source:

GeometricalPredicates.jl/src/GeometricalPredicates.jl

Lines 993 to 1006 in 045d355

	function _init_inv_peano_3d()
	for rotation in 0:23
	for bitx in 0:1
	for bity in 0:1
	for bitz in 0:1
	quad = quadrants(rotation, bitx, bity, bitz)
	quadrants_inverse_x[rotation+1, quad+1] = bitx;
	quadrants_inverse_y[rotation+1, quad+1] = bity;
	quadrants_inverse_z[rotation+1, quad+1] = bitz;
	end
	end
	end
	end
	end

and could be fixed by just adding type annotations for rotation::Int64, bitx::Int64, etc..

I don't know if x86 is something you want to support? But if not, could you maybe add a line about that in the readme, or get the precompile to fail with a more meaningful message?

I'm also happy to contribute a PR if that would be helpful.

Thanks!

[blegat]

I'm running into the same issue in https://github.com/JuliaPolyhedra/HyperVoronoiDelaunay.jl/runs/6857034700?check_suite_focus=true