Deprecate logspace to its definition

NEWS.md

@@ -1034,6 +1034,8 @@ Deprecated or removed
 
   * `LinSpace` has been renamed to `LinRange` ([#25896]).
 
+  * `logspace` has been deprecated to its definition ([#25896]).
+
   * `endof(a)` has been renamed to `lastindex(a)`, and the `end` keyword in indexing expressions now
     lowers to either `lastindex(a)` (in the case with only one index) or `lastindex(a, d)` (in cases
     where there is more than one index and `end` appears at dimension `d`) ([#23554], [#25763]).

base/deprecated.jl

@@ -841,7 +841,7 @@ end
 
 # issue #24794
 @deprecate linspace(start, stop)     range(start, stop=stop, length=50)
-@deprecate logspace(start, stop)     logspace(start, stop, 50)
+@deprecate logspace(start, stop)     exp10.(range(start, stop=stop, length=50))
 
 # 24490 - warnings and messages
 const log_info_to = Dict{Tuple{Union{Module,Nothing},Union{Symbol,Nothing}},IO}()
@@ -1318,6 +1318,7 @@ export readandwrite
 @deprecate linspace(start, stop, length::Integer) range(start, stop=stop, length=length)
 @deprecate linspace(start, stop, length::Real) range(start, stop=stop, length=Int(length))
 @deprecate_binding LinSpace LinRange
+@deprecate logspace(start, stop, n; base=10) base.^range(start, stop=stop, length=n)
 
 @deprecate runtests(tests, ncores; kw...) runtests(tests; ncores = ncores, kw...) false
 @deprecate code_lowered(f, types, generated) code_lowered(f, types, generated = generated)

base/exports.jl

@@ -395,7 +395,6 @@ export
     issorted,
     last,
     linearindices,
-    logspace,
     mapslices,
     max,
     maximum!,

base/range.jl

@@ -241,7 +241,7 @@ StepRangeLen(ref::R, step::S, len::Integer, offset::Integer = 1) where {R,S} =
 StepRangeLen{T}(ref::R, step::S, len::Integer, offset::Integer = 1) where {T,R,S} =
     StepRangeLen{T,R,S}(ref, step, len, offset)
 
-## range with computed step, and logspace
+## range with computed step
 
 struct LinRange{T} <: AbstractRange{T}
     start::T
@@ -341,31 +341,6 @@ function print_range(io::IO, r::AbstractRange,
     end
 end
 
-"""
-    logspace(start::Real, stop::Real, n::Integer; base=10)
-
-Construct a vector of `n` logarithmically spaced numbers from `base^start` to `base^stop`.
-
-```jldoctest
-julia> logspace(1.,10.,5)
-5-element Array{Float64,1}:
-     10.0
-   1778.2794100389228
- 316227.7660168379
-      5.623413251903491e7
-      1.0e10
-
-julia> logspace(1.,10.,5,base=2)
-5-element Array{Float64,1}:
-    2.0
-    9.513656920021768
-   45.254833995939045
-  215.2694823049509
- 1024.0
-```
-"""
-logspace(start::Real, stop::Real, n::Integer; base=10) = base.^range(start, stop=stop, length=n)
-
 ## interface implementations
 
 size(r::AbstractRange) = (length(r),)

doc/src/base/arrays.md

@@ -32,7 +32,6 @@ Base.fill
 Base.fill!
 Base.similar(::AbstractArray)
 Base.similar(::Any, ::Tuple)
-Base.logspace
 ```
 
 ## Basic functions

examples/lru_test.jl

@@ -10,7 +10,7 @@ get_str(i) = String(vcat(map(x->[x>>4; x&0x0F], reinterpret(UInt8, [Int32(i)])).
 isbounded(::Type{L}) where {L<:LRUExample.LRU} = any(map(n->n==:maxsize, fieldnames(L)))
 isbounded(l::L) where {L<:LRUExample.LRU} = isbounded(L)
 
-nmax = round.(Int, logspace(2, 5, 4))
+nmax = map(x->round(Int, exp10(x)), range(2, stop=5, length=4))
 
 function lrutest()
     #println("LRU consistency tests")

test/compiler/compiler.jl

@@ -585,8 +585,9 @@ tpara18457(::Type{A}) where {A<:AbstractMyType18457} = tpara18457(supertype(A))
 
     function FOO_19322(Y::AbstractMatrix; frac::Float64=0.3, nbins::Int=100, n_sims::Int=100)
         num_iters, num_chains = size(Y)
-        start_iters = unique([1; [round(Int64, s) for s in logspace(log(10,100),
-                                                                    log(10,num_iters/2),nbins-1)]])
+        start_iters = unique([1; map(s->round(Int64, exp10(s)), range(log(10,100),
+                                                                      stop=log(10,num_iters/2),
+                                                                      length=nbins-1))])
         result = zeros(Float64, 10, length(start_iters) * num_chains)
         j=1
         for c in 1:num_chains

test/ranges.jl

@@ -1209,17 +1209,6 @@ end
     @test Float32(linsp.ref) ≈ linsp.ref.hi + linsp.ref.lo
 end
 
-@testset "logspace" begin
-    n = 10; a = 2; b = 4
-    # test default values; base = 10
-    @test logspace(a, b, 50) == 10 .^ range(a, stop=b, length=50)
-    @test logspace(a, b, n) == 10 .^ range(a, stop=b, length=n)
-    for base in (10, 2, ℯ)
-        @test logspace(a, b, 50, base=base) == base.^range(a, stop=b, length=50)
-        @test logspace(a, b, n, base=base) == base.^range(a, stop=b, length=n)
-    end
-end
-
 @testset "issue #23300" begin
     x = -5:big(1.0):5
     @test map(Float64, x) === -5.0:1.0:5.0