No method matching round(MF)

[lrnv]

Doing some optimisations, I encountered the lack of rounding method for MultiFloats:

ERROR: MethodError: no method matching round(::MultiFloat{Float64, 4}, ::RoundingMode{:Up})
Closest candidates are:
  round(::Real, ::RoundingMode; digits, sigdigits, base) at floatfuncs.jl:129
  round(::Complex, ::RoundingMode) at complex.jl:1038
  round(::Complex, ::RoundingMode, ::RoundingMode; kwargs...) at complex.jl:1038

Same thing happend for trunc. Setting:

import Base.round, Base.trunc
Base.round(x::MultiFloat{Float64, 4}, y::RoundingMode{:Up}) = MultiFloat{Float64, 4}(Base.round(Float64(x),y))
Base.trunc(x::Type{Int64}, y::MultiFloat{Float64, 4}) = Base.trunc(x::Type{Int64}, Float64(y))

fixed the problem for my script, but i'm not sure it's the right thing to do.