SVector(0.0,0) throws an error

[dlfivefifty]

I would expect this to promote to Float64:

julia> SVector(0.,0)
ERROR: The size of type `StaticArrays.SVector` is not known.

If you were trying to construct (or `convert` to) a `StaticArray` you
may need to add the size explicitly as a type parameter so its size is
inferrable to the Julia compiler (or performance would be terrible). For
example, you might try

    m = zeros(3,3)
    SMatrix(m)      # this error
    SMatrix{3,3}(m) # correct - size is inferrable

Stacktrace:
 [1] StaticArrays.Size(::Type{StaticArrays.SVector}) at /Users/solver/.julia/v0.6/StaticArrays/src/traits.jl:42
 [2] StaticArrays.SVector(::Float64, ::Int64) at /Users/solver/.julia/v0.6/StaticArrays/src/core.jl:37

[dlfivefifty]

This is only in 0.6

[andyferris]

Can you try Pkg.checkout("StaticArrays", "julia-0.6") on v0.6, and see if the problem is gone?

(I haven't quite finished that branch, but it should have most basic functionality working)

[dlfivefifty]

julia> Pkg.checkout("StaticArrays","julia-0.6")
INFO: Checking out StaticArrays julia-0.6...
INFO: Pulling StaticArrays latest julia-0.6...
WARNING: Cannot perform fast-forward merge.
INFO: No packages to install, update or remove

julia> using StaticArrays

julia> SVector(1.0,1)
ERROR: No precise constructor for StaticArrays.SVector found. Length of input was 2.
Stacktrace:
 [1] StaticArrays.SVector(::Float64, ::Int64) at /Users/solver/.julia/v0.6/StaticArrays/src/convert.jl:3

[dlfivefifty]

So the error is slightly different

[andyferris]

There was a missing Any in NTuple{N, Any} in one of the SVector constructors. In v0.6 this is distinct from NTuple{N} which asserts that the types are the same via NTuple{N, T} where T (with T concrete in covariant positions in a UnionAll). I'm fixing this on the julia-0.6 branch, so I'll close the issue.

Thanks for reporting.