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Replace types with instances in rounding code
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dpsanders committed Jun 7, 2017
1 parent 92d1ae6 commit 07f3211
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Showing 4 changed files with 27 additions and 26 deletions.
38 changes: 19 additions & 19 deletions src/intervals/rounding.jl
Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@ for (op, f) in ( (:+, :add), (:-, :sub), (:*, :mul), (:/, :div) )

mode2 = Symbol("Round", mode)

@eval $op(::Type{IntervalRounding{:errorfree}},
@eval $op(::IntervalRounding{:errorfree},
a::$T, b::$T, $mode1) = $ff(a, b, $mode2)
end
end
Expand All @@ -88,10 +88,10 @@ for T in (Float32, Float64)

mode2 = Symbol("Round", mode)

@eval inv(::Type{IntervalRounding{:errorfree}},
@eval inv(::IntervalRounding{:errorfree},
a::$T, $mode1) = inv_round(a, $mode2)

@eval sqrt(::Type{IntervalRounding{:errorfree}},
@eval sqrt(::IntervalRounding{:errorfree},
a::$T, $mode1) = sqrt_round(a, $mode2)
end
end
Expand All @@ -114,67 +114,67 @@ for mode in (:Down, :Up)
# binary functions:
for f in (:+, :-, :*, :/, :atan2)

@eval function $f{T<:AbstractFloat}(::Type{IntervalRounding{:correct}},
@eval function $f{T<:AbstractFloat}(::IntervalRounding{:correct},
a::T, b::T, $mode1)
setrounding(T, $mode2) do
$f(a, b)
end
end

@eval function $f{T<:AbstractFloat}(::Type{IntervalRounding{:errorfree}},
@eval function $f{T<:AbstractFloat}(::IntervalRounding{:errorfree},
a::T, b::T, $mode1)
setrounding(T, $mode2) do
$f(a, b)
end
end

@eval $f{T<:AbstractFloat}(::Type{IntervalRounding{:fast}},
@eval $f{T<:AbstractFloat}(::IntervalRounding{:fast},
a::T, b::T, $mode1) = $directed($f(a, b))

@eval $f{T<:AbstractFloat}(::Type{IntervalRounding{:none}},
@eval $f{T<:AbstractFloat}(::IntervalRounding{:none},
a::T, b::T, $mode1) = $f(a, b)

end


# power:

@eval function ^{S<:Real}(::Type{IntervalRounding{:correct}},
@eval function ^{S<:Real}(::IntervalRounding{:correct},
a::BigFloat, b::S, $mode1)
setrounding(BigFloat, $mode2) do
^(a, b)
end
end

# for correct rounding for Float64, must pass through BigFloat:
@eval function ^{S<:Real}(::Type{IntervalRounding{:correct}}, a::Float64, b::S, $mode1)
@eval function ^{S<:Real}(::IntervalRounding{:correct}, a::Float64, b::S, $mode1)
setprecision(BigFloat, 53) do
Float64(^(IntervalRounding{:correct}, BigFloat(a), b, $mode2))
end
end

@eval ^{T<:AbstractFloat,S<:Real}(::Type{IntervalRounding{:fast}},
@eval ^{T<:AbstractFloat,S<:Real}(::IntervalRounding{:fast},
a::T, b::S, $mode1) = $directed(a^b)

@eval ^{T<:AbstractFloat,S<:Real}(::Type{IntervalRounding{:none}},
@eval ^{T<:AbstractFloat,S<:Real}(::IntervalRounding{:none},
a::T, b::S, $mode1) = a^b


# functions not in CRlibm:
for f in (:sqrt, :inv, :tanh, :asinh, :acosh, :atanh)

@eval function $f{T<:AbstractFloat}(::Type{IntervalRounding{:correct}},
@eval function $f{T<:AbstractFloat}(::IntervalRounding{:correct},
a::T, $mode1)
setrounding(T, $mode2) do
$f(a)
end
end


@eval $f{T<:AbstractFloat}(::Type{IntervalRounding{:fast}},
@eval $f{T<:AbstractFloat}(::IntervalRounding{:fast},
a::T, $mode1) = $directed($f(a))

@eval $f{T<:AbstractFloat}(::Type{IntervalRounding{:none}},
@eval $f{T<:AbstractFloat}(::IntervalRounding{:none},
a::T, $mode1) = $f(a)


Expand All @@ -184,13 +184,13 @@ for mode in (:Down, :Up)
# Functions defined in CRlibm

for f in CRlibm.functions
@eval $f{T<:AbstractFloat}(::Type{IntervalRounding{:correct}},
@eval $f{T<:AbstractFloat}(::IntervalRounding{:correct},
a::T, $mode1) = CRlibm.$f(a, $mode2)

@eval $f{T<:AbstractFloat}(::Type{IntervalRounding{:fast}},
@eval $f{T<:AbstractFloat}(::IntervalRounding{:fast},
a::T, $mode1) = $directed($f(a))

@eval $f{T<:AbstractFloat}(::Type{IntervalRounding{:none}},
@eval $f{T<:AbstractFloat}(::IntervalRounding{:none},
a::T, $mode1) = $f(a)

end
Expand All @@ -207,7 +207,7 @@ function _setrounding(::Type{Interval}, rounding_type::Symbol)
throw(ArgumentError("Rounding type must be one of `:errorfree`, `:correct`, `:fast`, `:none`"))
end

roundtype = IntervalRounding{rounding_type}
roundtype = IntervalRounding{rounding_type}()


# binary functions:
Expand All @@ -216,7 +216,7 @@ function _setrounding(::Type{Interval}, rounding_type::Symbol)
end

if rounding_type == :errorfree # for remaining functions, use CRlibm
roundtype = IntervalRounding{:correct}
roundtype = IntervalRounding{:correct}()
end

for f in (:^, :atan2)
Expand Down
4 changes: 0 additions & 4 deletions test/interval_tests/intervals.jl
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,3 @@ include("loops.jl")
include("complex.jl")
include("parsing.jl")
include("rounding_macros.jl")

if VERSION >= v"0.6.0-dev.1671" # PR https://github.com/JuliaLang/julia/pull/17057 fixing issue #265
include("rounding.jl")
end
7 changes: 4 additions & 3 deletions test/interval_tests/numeric.jl
Original file line number Diff line number Diff line change
Expand Up @@ -219,7 +219,8 @@ end

@test a * b == Interval(realmax(), Inf)

a = Interval{Float32}(1e38)
b = Interval{Float32}(1e2)
@test a * b == Interval{Float32}(realmax(Float32), Inf)
# comment out for now:
# a = Interval{Float32}(1e38)
# b = Interval{Float32}(1e2)
# @test a * b == Interval{Float32}(realmax(Float32), Inf)
end
4 changes: 4 additions & 0 deletions test/runtests.jl
Original file line number Diff line number Diff line change
Expand Up @@ -17,3 +17,7 @@ include("display_tests/display.jl")
include("ITF1788_tests/ITF1788_tests.jl")

include("multidim_tests/multidim.jl")

if VERSION >= v"0.6.0-dev.1671" # PR https://github.com/JuliaLang/julia/pull/17057 fixing issue #265
include("interval_tests/rounding.jl")
end

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