Merge pull request #280 from ChrisRackauckas-Claude/add-floatmax-floatmin

Add floatmax and floatmin methods for TrackedReal

Author: ChrisRackauckas

Project.toml

@@ -1,6 +1,6 @@
 name = "ReverseDiff"
 uuid = "37e2e3b7-166d-5795-8a7a-e32c996b4267"
-version = "1.16.1"
+version = "1.16.2"
 
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"

src/tracked.jl

@@ -433,6 +433,9 @@ Base.rand(rng::Random.AbstractRNG, ::Type{TrackedReal{V,D,O}}) where {V,D,O} = T
 Base.eps(t::TrackedReal) = eps(value(t))
 Base.eps(::Type{T}) where {T<:TrackedReal} = eps(valtype(T))
 
+Base.floatmax(::Type{T}) where {T<:TrackedReal} = floatmax(valtype(T))
+Base.floatmin(::Type{T}) where {T<:TrackedReal} = floatmin(valtype(T))
+
 Base.floor(t::TrackedReal) = floor(value(t))
 Base.floor(::Type{R}, t::TrackedReal) where {R<:Real} = floor(R, value(t))
 

test/TrackedTests.jl

@@ -733,6 +733,7 @@ tp = InstructionTape()
 tr_int = TrackedReal(v_int, d, tp)
 tr_float = TrackedReal(v_float, d, tp)
 tr_float2 = TrackedReal(v_float2, d2, tp)
+tr_float32 = TrackedReal(Float32(v_float), Float32(d), tp)
 
 @test hash(tr_float) === hash(v_float)
 @test hash(tr_float, hash(1)) === hash(v_float, hash(1))
@@ -756,6 +757,11 @@ tr_rand = rand(MersenneTwister(1), TrackedReal{Int,Float64,Nothing})
 @test eps(tr_float) === eps(v_float)
 @test eps(typeof(tr_float)) === eps(Float64)
 
+@test floatmin(typeof(tr_float)) === floatmin(Float64)
+@test floatmin(typeof(tr_float32)) === floatmin(Float32)
+@test floatmax(typeof(tr_float)) === floatmax(Float64)
+@test floatmax(typeof(tr_float32)) === floatmax(Float32)
+
 @test floor(tr_float) === floor(v_float)
 @test floor(Int, tr_float) === floor(Int, v_float)