Merge pull request #13445 from JuliaLang/jrg/complextype

Implement complex(::Type)
JuliaLang · Oct 26, 2015 · d0b97f3 · d0b97f3
2 parents df6105d + b3a2e82
commit d0b97f3
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diff --git a/base/complex.jl b/base/complex.jl
@@ -37,6 +37,9 @@ reim(z) = (real(z), imag(z))
 real{T<:Real}(::Type{T}) = T
 real{T<:Real}(::Type{Complex{T}}) = T
 
+complex{T<:Real}(::Type{T}) = Complex{T}
+complex{T<:Real}(::Type{Complex{T}}) = Complex{T}
+
 isreal(x::Real) = true
 isreal(z::Complex) = imag(z) == 0
 isimag(z::Number) = real(z) == 0

diff --git a/test/complex.jl b/test/complex.jl
@@ -2,6 +2,13 @@
 
 @test reim(2 + 3im) == (2, 3)
 
+for T in (Int64, Float64)
+    @test real(T) == T
+    @test real(Complex{T}) == T
+    @test complex(T) == Complex{T}
+    @test complex(Complex{T}) == Complex{T}
+end
+
 # Basic arithmetic
 for T in (Float16, Float32, Float64, BigFloat)
     t = true