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Merged
merged 8 commits into from
Oct 22, 2025
Merged

cleanups #92

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4ac43f4
cleanups
oscardssmith May 13, 2025
ac84a40
cleanup constructors from Integers
May 14, 2025
848a168
move more functions to julia
oscardssmith May 15, 2025
5d50bf9
further cleanup
May 16, 2025
7057716
bump version
oscardssmith Sep 27, 2025
9c4561f
Julia-like Printing
oscardssmith Sep 29, 2025
21032e8
dont use Ryu
oscardssmith Sep 29, 2025
be01f9f
fix infinite printing
oscardssmith Sep 29, 2025
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73 changes: 10 additions & 63 deletions src/Quadmath.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -82,39 +82,20 @@ end
# and passed on the xmm registers, matching the x86_64 ABI for __float128.
const Cfloat128 = NTuple{2,VecElement{Float64}}

struct Float128 <: AbstractFloat
data::Cfloat128
function Float128(data::Cfloat128)
new(data)
end
end
primitive type Float128 <: AbstractFloat 128 end
Float128(data::Cfloat128) = reinterpret(Float128, data)

convert(::Type{Float128}, x::Number) = Float128(x)

const ComplexF128 = Complex{Float128}

Base.cconvert(::Type{Cfloat128}, x::Float128) = x.data
Base.cconvert(::Type{Ref{Cfloat128}}, x::Float128) = Ref{Cfloat128}(x.data)

Base.cconvert(::Type{Cfloat128}, x::Float128) = reinterpret(Cfloat128, x)
Base.cconvert(::Type{Ref{Cfloat128}}, x::Float128) = Ref(Cfloat128(x))

# reinterpret
function reinterpret(::Type{UInt128}, x::Float128)
hi = reinterpret(UInt64, x.data[2].value)
lo = reinterpret(UInt64, x.data[1].value)
UInt128(hi) << 64 | lo
end
function reinterpret(::Type{Float128}, x::UInt128)
fhi = reinterpret(Float64, (x >> 64) % UInt64)
flo = reinterpret(Float64, x % UInt64)
Float128((VecElement(flo), VecElement(fhi)))
end
reinterpret(::Type{Unsigned}, x::Float128) = reinterpret(UInt128, x)
reinterpret(::Type{Signed}, x::Float128) = reinterpret(Int128, x)

reinterpret(::Type{Int128}, x::Float128) =
reinterpret(Int128, reinterpret(UInt128, x))
reinterpret(::Type{Float128}, x::Int128) =
reinterpret(Float128, reinterpret(UInt128, x))

sign_mask(::Type{Float128}) = 0x8000_0000_0000_0000_0000_0000_0000_0000
exponent_mask(::Type{Float128}) = 0x7fff_0000_0000_0000_0000_0000_0000_0000
exponent_one(::Type{Float128}) = 0x3fff_0000_0000_0000_0000_0000_0000_0000
Expand Down Expand Up @@ -481,20 +462,10 @@ end

function BigFloat(x::Float128; precision=precision(BigFloat))
if !isfinite(x) || iszero(x)
@static if VERSION < v"1.1"
return BigFloat(Float64(x), precision)
else
return BigFloat(Float64(x), precision=precision)
end
return BigFloat(Float64(x), precision=precision)
end

@static if VERSION < v"1.1"
b = setprecision(BigFloat, max(precision,113)) do
BigFloat()
end
else
b = BigFloat(precision=max(precision,113))
end
b = BigFloat(precision=max(precision,113))

y, k = frexp(x)
b.exp = Clong(k)
Expand All @@ -514,16 +485,7 @@ function BigFloat(x::Float128; precision=precision(BigFloat))
end

if precision < 113
@static if VERSION < v"1.1"
b2 = setprecision(BigFloat, precision) do
BigFloat()
end
ccall((:mpfr_set, :libmpfr), Int32, (Ref{BigFloat}, Ref{BigFloat}, Int32),
b2, b, MPFR.ROUNDING_MODE[])
return b2
else
return BigFloat(b, precision=precision)
end
return BigFloat(b, precision=precision)
else
return b
end
Expand All @@ -545,16 +507,7 @@ function Float128(x::BigFloat)
z = reinterpret(Float128, UInt128(0))
end

@static if VERSION < v"1.1"
y = setprecision(BigFloat, prec) do
BigFloat()
end
ccall((:mpfr_set, :libmpfr), Int32, (Ref{BigFloat}, Ref{BigFloat}, Int32),
y, x, MPFR.ROUNDING_MODE[])
else
y = BigFloat(x, precision=prec)
end

y = BigFloat(x, precision=prec)
u = zero(UInt128)
i = cld(prec, sizeof(MPFR.Limb)*8)
j = 113
Expand All @@ -574,13 +527,7 @@ function BigInt(x::Float128)
BigInt(BigFloat(x, precision=precision(Float128)))
end
function Float128(x::BigInt)
@static if VERSION < v"1.1"
y = setprecision(BigFloat, precision(Float128)) do
BigFloat(x)
end
else
y = BigFloat(x, precision=precision(Float128))
end
y = BigFloat(x, precision=precision(Float128))
Float128(y)
end

Expand Down
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