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RFC: Set to Set conversions #18727

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merged 1 commit into from Sep 30, 2016
Merged

RFC: Set to Set conversions #18727

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3 changes: 3 additions & 0 deletions base/set.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -193,3 +193,6 @@ function hash(s::Set, h::UInt)
end
return h
end

convert{T}(::Type{Set{T}}, s::Set{T}) = s
convert{T,S}(::Type{Set{T}}, x::Set{S}) = Set{T}(x)
16 changes: 16 additions & 0 deletions test/sets.jl
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Expand Up @@ -252,3 +252,19 @@ end
@test pop!(Set(1:2), 2, nothing) == 2

@test length(Set(['x',120])) == 2

# convert
let
iset = Set([17, 4711])
cfset = convert(Set{Float64}, iset)
@test typeof(cfset) == Set{Float64}
@test cfset == iset
fset = Set([17.0, 4711.0])
ciset = convert(Set{Int}, fset)
@test typeof(ciset) == Set{Int}
@test ciset == fset
ssset = Set(split("foo bar"))
cssset = convert(Set{String}, ssset)
@test typeof(cssset) == Set{String}
@test cssset == Set(["foo", "bar"])
end