rename Complex{32,64,128} to ComplexF{16,32,64}

NEWS.md

@@ -735,6 +735,10 @@ Deprecated or removed
   * `cumsum`, `cumprod`, `accumulate`, and their mutating versions now require a `dim`
     argument instead of defaulting to using the first dimension ([#24684]).
 
+  * The aliases `Complex32`, `Complex64` and `Complex128` have been deprecated in favor of `ComplexF16`,
+     `ComplexF32` and `ComplexF64` respectively (#24647).
+
+
 Command-line option changes
 ---------------------------
 
@@ -1706,4 +1710,4 @@ Command-line option changes
 [#24320]: https://github.com/JuliaLang/julia/issues/24320
 [#24396]: https://github.com/JuliaLang/julia/issues/24396
 [#24413]: https://github.com/JuliaLang/julia/issues/24413
-[#24653]: https://github.com/JuliaLang/julia/issues/24653
+[#24653]: https://github.com/JuliaLang/julia/issues/24653

base/array.jl

@@ -365,7 +365,7 @@ julia> ones(1,2)
 1×2 Array{Float64,2}:
  1.0  1.0
 
-julia> ones(Complex128, 2, 3)
+julia> ones(ComplexF64, 2, 3)
 2×3 Array{Complex{Float64},2}:
  1.0+0.0im  1.0+0.0im  1.0+0.0im
  1.0+0.0im  1.0+0.0im  1.0+0.0im

base/complex.jl

@@ -5,7 +5,7 @@
 
 Complex number type with real and imaginary part of type `T`.
 
-`Complex32`, `Complex64` and `Complex128` are aliases for
+`ComplexF16`, `ComplexF32` and `ComplexF64` are aliases for
 `Complex{Float16}`, `Complex{Float32}` and `Complex{Float64}` respectively.
 """
 struct Complex{T<:Real} <: Number
@@ -28,9 +28,9 @@ julia> im * im
 """
 const im = Complex(false, true)
 
-const Complex128 = Complex{Float64}
-const Complex64  = Complex{Float32}
-const Complex32  = Complex{Float16}
+const ComplexF64 = Complex{Float64}
+const ComplexF32  = Complex{Float32}
+const ComplexF16  = Complex{Float16}
 
 convert(::Type{Complex{T}}, x::Real) where {T<:Real} = Complex{T}(x,0)
 convert(::Type{Complex{T}}, z::Complex) where {T<:Real} = Complex{T}(real(z),imag(z))
@@ -353,7 +353,7 @@ inv(z::Complex{<:Union{Float16,Float32}}) =
 #             a + i*b
 #  p + i*q = ---------
 #             c + i*d
-function /(z::Complex128, w::Complex128)
+function /(z::ComplexF64, w::ComplexF64)
     a, b = reim(z); c, d = reim(w)
     half = 0.5
     two = 2.0
@@ -369,7 +369,7 @@ function /(z::Complex128, w::Complex128)
     ab <= un*two/ϵ && (a=a*bs; b=b*bs; s=s/bs      ) # scale up a,b
     cd <= un*two/ϵ && (c=c*bs; d=d*bs; s=s*bs      ) # scale up c,d
     abs(d)<=abs(c) ? ((p,q)=robust_cdiv1(a,b,c,d)  ) : ((p,q)=robust_cdiv1(b,a,d,c); q=-q)
-    return Complex128(p*s,q*s) # undo scaling
+    return ComplexF64(p*s,q*s) # undo scaling
 end
 function robust_cdiv1(a::Float64, b::Float64, c::Float64, d::Float64)
     r = d/c
@@ -387,7 +387,7 @@ function robust_cdiv2(a::Float64, b::Float64, c::Float64, d::Float64, r::Float64
     end
 end
 
-function inv(w::Complex128)
+function inv(w::ComplexF64)
     c, d = reim(w)
     half = 0.5
     two = 2.0
@@ -411,7 +411,7 @@ function inv(w::Complex128)
         p = r * t
         q = -t
     end
-    return Complex128(p*s,q*s) # undo scaling
+    return ComplexF64(p*s,q*s) # undo scaling
 end
 
 function ssqs(x::T, y::T) where T<:AbstractFloat

base/deprecated.jl

@@ -2183,6 +2183,11 @@ end
     @deprecate SSHCredentials SSHCredential false
 end
 
+# PR #24647
+@deprecate_binding Complex32  ComplexF16
+@deprecate_binding Complex64  ComplexF32
+@deprecate_binding Complex128 ComplexF64
+
 # END 0.7 deprecations
 
 # BEGIN 1.0 deprecations

base/essentials.jl

@@ -351,7 +351,7 @@ Size, in bytes, of the canonical binary representation of the given DataType `T`
 julia> sizeof(Float32)
 4
 
-julia> sizeof(Complex128)
+julia> sizeof(ComplexF64)
 16
 ```
 

base/exports.jl

@@ -44,9 +44,9 @@ export
     Cmd,
     Colon,
     Complex,
-    Complex128,
-    Complex64,
-    Complex32,
+    ComplexF64,
+    ComplexF32,
+    ComplexF16,
     ConjArray,
     ConjVector,
     ConjMatrix,

base/fastmath.jl

@@ -187,7 +187,7 @@ issubnormal_fast(x) = false
 
 # complex numbers
 
-ComplexTypes = Union{Complex64, Complex128}
+ComplexTypes = Union{ComplexF32, ComplexF64}
 
 @fastmath begin
     abs_fast(x::ComplexTypes) = hypot(real(x), imag(x))

base/inference.jl

@@ -2613,7 +2613,7 @@ function abstract_call(@nospecialize(f), fargs::Union{Tuple{},Vector{Any}}, argt
             length(argtypes) == 3 && (argtypes[3] ⊑ Int32 || argtypes[3] ⊑ Int64)
 
             a1 = argtypes[2]
-            basenumtype = Union{corenumtype, Main.Base.Complex64, Main.Base.Complex128, Main.Base.Rational}
+            basenumtype = Union{corenumtype, Main.Base.ComplexF32, Main.Base.ComplexF64, Main.Base.Rational}
             if a1 ⊑ basenumtype
                 ftimes = Main.Base.:*
                 ta1 = widenconst(a1)
@@ -5394,7 +5394,7 @@ function inlining_pass(e::Expr, sv::OptimizationState, stmts::Vector{Any}, ins,
             triple = (a2 === Int32(3) || a2 === Int64(3))
             if square || triple
                 a1 = e.args[2]
-                basenumtype = Union{corenumtype, Main.Base.Complex64, Main.Base.Complex128, Main.Base.Rational}
+                basenumtype = Union{corenumtype, Main.Base.ComplexF32, Main.Base.ComplexF64, Main.Base.Rational}
                 if isa(a1, basenumtype) || ((isa(a1, Symbol) || isa(a1, Slot) || isa(a1, SSAValue)) &&
                                            exprtype(a1, sv.src, sv.mod) ⊑ basenumtype)
                     if square