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Two argument ustrip for logarithmic units #535

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Two argument ustrip for logarithmic units #535

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6f99100
Add explicit ustrip for logarithmic quantities
gustaphe May 2, 2022
71f4200
Add tests
gustaphe May 2, 2022
0daf2a6
dB/m
gustaphe May 2, 2022
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1 change: 1 addition & 0 deletions src/logarithm.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -161,6 +161,7 @@ end

ustrip(x::Level{L,S}) where {L<:LogInfo,S} = tolog(L,S,x.val/reflevel(x))
ustrip(x::Gain) = x.val
ustrip(u::MixedUnits, x) = ustrip(uconvert(u, x))

isrootpower(y::IsRootPowerRatio{T}) where {T} = T
isrootpower(y) = isrootpower_dim(dimension(y))
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8 changes: 7 additions & 1 deletion test/runtests.jl
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Expand Up @@ -13,7 +13,7 @@ import Unitful:
ms, s, minute, hr, d, yr, Hz,
J, A, N, mol, V,
mW, W,
dB, dB_rp, dB_p, dBm, dBV, dBSPL, Decibel,
dB, B, dB_rp, dB_p, dBm, dBV, dBμV, dBSPL, Decibel,
Np, Np_rp, Np_p, Neper,
C

Expand Down Expand Up @@ -103,6 +103,8 @@ end
@test @inferred(ustrip(3*FixedUnits(m))) === 3
@test @inferred(ustrip(3)) === 3
@test @inferred(ustrip(3.0m)) === 3.0
@test @inferred(ustrip(3.0dB)) === 3.0
@test @inferred(ustrip(3.0dBm)) === 3.0
# ustrip with type and unit arguments
@test @inferred(ustrip(m, 3.0m)) === 3.0
@test @inferred(ustrip(m, 2mm)) === 1//500
Expand All @@ -116,6 +118,10 @@ end
@test @inferred(ustrip(Int, mm, 2.0m)) === 2000
@test @inferred(ustrip(Float32, NoUnits, 5.0u"m"/2.0u"m")) === Float32(2.5)
@test @inferred(ustrip(Int, NoUnits, 3.0u"m"/1.0u"cm")) === 300
@test @inferred(ustrip(B, 3.0dB)) === 0.3
@test @inferred(ustrip(dBμV, 3.0dBV)) === 123.0
@test_throws DimensionError ustrip(dBm, 3.0dBμV)
@test @inferred(ustrip(B/m, 1.0dB/mm)) ≈ 100.0
# convert
@test convert(typeof(1mm/m), 3) == 3000mm/m
@test convert(typeof(1mm/m), 3*NoUnits) == 3000mm/m
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