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dual exponent #605

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merged 2 commits into from
Nov 11, 2022
Merged

dual exponent #605

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61f3f9b
add exponent(::Dual)
ptiede Nov 11, 2022
6d96417
revert spacing
ptiede Nov 11, 2022
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2 changes: 2 additions & 0 deletions src/dual.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -332,6 +332,8 @@ Base.fld(x::Dual, y::Dual) = fld(value(x), value(y))

Base.cld(x::Dual, y::Dual) = cld(value(x), value(y))

Base.exponent(x::Dual) = exponent(value(x))

if VERSION ≥ v"1.4"
Base.div(x::Dual, y::Dual, r::RoundingMode) = div(value(x), value(y), r)
else
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8 changes: 6 additions & 2 deletions test/DualTest.jl
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Expand Up @@ -44,7 +44,7 @@ ForwardDiff.:≺(::Type{OuterTestTag}, ::Type{TestTag}) = false
PARTIALS3 = Partials{N,V}(ntuple(n -> intrand(V), N))
PRIMAL3 = intrand(V)
FDNUM3 = Dual{TestTag()}(PRIMAL3, PARTIALS3)

if !allunique([PRIMAL, PRIMAL2, PRIMAL3])
@info "testing with non-unique primals" PRIMAL PRIMAL2 PRIMAL3
end
Expand Down Expand Up @@ -162,6 +162,10 @@ ForwardDiff.:≺(::Type{OuterTestTag}, ::Type{TestTag}) = false
@test fld(FDNUM, PRIMAL2) === fld(PRIMAL, PRIMAL2)
@test fld(PRIMAL, FDNUM2) === fld(PRIMAL, PRIMAL2)

@test exponent(FDNUM) === exponent(PRIMAL)
@test exponent(FDNUM2) === exponent(PRIMAL2)
@test exponent(NESTED_FDNUM) === exponent(PRIMAL)

@test cld(FDNUM, FDNUM2) === cld(PRIMAL, PRIMAL2)
@test cld(FDNUM, PRIMAL2) === cld(PRIMAL, PRIMAL2)
@test cld(PRIMAL, FDNUM2) === cld(PRIMAL, PRIMAL2)
Expand Down Expand Up @@ -414,7 +418,7 @@ ForwardDiff.:≺(::Type{OuterTestTag}, ::Type{TestTag}) = false
#----------#

if M > 0 && N > 0
# Recall that FDNUM = Dual{TestTag()}(PRIMAL, PARTIALS) has N partials,
# Recall that FDNUM = Dual{TestTag()}(PRIMAL, PARTIALS) has N partials,
# all random numbers nonzero, and FDNUM2 another draw. M only affects NESTED_FDNUM.
@test Dual{1}(FDNUM) / Dual{1}(PRIMAL) === Dual{1}(FDNUM / PRIMAL)
@test Dual{1}(PRIMAL) / Dual{1}(FDNUM) === Dual{1}(PRIMAL / FDNUM)
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