Convert Ranges to Intervals

Author: timholy

src/IntervalSets.jl

@@ -23,6 +23,10 @@ function convert{I<:AbstractInterval}(::Type{I}, i::AbstractInterval)
     T = eltype(I)
     I(convert(T, i.left), convert(T, i.right))
 end
+function convert{I<:AbstractInterval}(::Type{I}, r::Range)
+    T = eltype(I)
+    I(convert(T, minimum(r)), convert(T, maximum(r)))
+end
 
 ordered{T}(a::T, b::T) = ifelse(a < b, (a, b), (b, a))
 ordered(a, b) = ordered(promote(a, b)...)

test/runtests.jl

@@ -22,6 +22,7 @@ using Base.Test
         @test eltype(I) == Int
         @test eltype(M) == Float64
         @test convert(ClosedInterval{Float64}, I) === 0.0..3.0
+        @test convert(ClosedInterval{Float64}, 0:3) === 0.0..3.0
         @test !(convert(ClosedInterval{Float64}, I) === 0..3)
         @test ClosedInterval{Float64}(1,3) === 1.0..3.0
         @test ClosedInterval(0.5..2.5) === 0.5..2.5
@@ -81,3 +82,5 @@ using Base.Test
         @test width(ClosedInterval(4.0,8.0)) ≡ 4.0
     end
 end
+
+nothing