From 3b7e4dbe4886aa26265dff53d8e4718c00fa3385 Mon Sep 17 00:00:00 2001
From: Lorenzo Contento <lcontento@users.noreply.github.com>
Date: Wed, 13 Apr 2022 13:52:20 +0200
Subject: [PATCH] specialize signbit(::FixedDecimal)

faster than the default implementation for BigInts and Int128s
---
 src/FixedPointDecimals.jl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/FixedPointDecimals.jl b/src/FixedPointDecimals.jl
index 5856d23..49a092c 100644
--- a/src/FixedPointDecimals.jl
+++ b/src/FixedPointDecimals.jl
@@ -354,6 +354,9 @@ Base.eps(x::FD) = eps(typeof(x))
 Base.floatmin(::Type{T}) where {T <: FD} = eps(T)
 Base.floatmax(::Type{T}) where {T <: FD} = typemax(T)
 
+# the default implementation of signbit is slow for BigInts and Int128s
+Base.signbit(x::FD) = signbit(x.i)
+
 # printing
 function Base.print(io::IO, x::FD{T, 0}) where T
     print(io, x.i)