Here is an example of two independent packages colliding when they overload the same method. Package MyPackage Module MyPackage struct MyNumber <: Number value end Base.promote_rule(::Type{MyNumber}, ::Type{S}) where {S<:Number} = MyNumber Base.convert(::Type{MyNumber}, x::…

Difficulties with promoting numbers

ChrisRackauckas May 19, 2018, 3:49am 2

That can only happen if someone knows the existence of both packages.

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