From 84e773d5e7d1032b09213c1766d7f19ed92d7ff9 Mon Sep 17 00:00:00 2001
From: schillic <git@christianschilling.net>
Date: Sun, 29 Dec 2024 12:54:59 +0100
Subject: [PATCH 1/2] make tolerance functions type stable

---
 src/Comparison/tolerance.jl | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Comparison/tolerance.jl b/src/Comparison/tolerance.jl
index 79ad0ce..de4e6ef 100644
--- a/src/Comparison/tolerance.jl
+++ b/src/Comparison/tolerance.jl
@@ -82,10 +82,10 @@ set_ztol(::Type{<:Rational}, ε::Rational) = _TOL_RAT.ztol = ε
 set_atol(::Type{<:Rational}, ε::Rational) = _TOL_RAT.atol = ε
 
 # global default tolerances for other numeric types
-TOL_N = Dict{Type{<:Number},Tolerance}()
-_rtol(N::Type{<:Number}) = get!(TOL_N, N, default_tolerance(N)).rtol
-_ztol(N::Type{<:Number}) = get!(TOL_N, N, default_tolerance(N)).ztol
-_atol(N::Type{<:Number}) = get!(TOL_N, N, default_tolerance(N)).atol
+const TOL_N = Dict{Type{<:Number},Tolerance}()
+_rtol(N::Type{<:Number})::N = get!(TOL_N, N, default_tolerance(N)).rtol
+_ztol(N::Type{<:Number})::N = get!(TOL_N, N, default_tolerance(N)).ztol
+_atol(N::Type{<:Number})::N = get!(TOL_N, N, default_tolerance(N)).atol
 
 set_rtol(N::Type{NT}, ε::NT) where {NT<:Number} = begin
     if N ∉ keys(TOL_N)

From 11c9713cf178d3e046ac223d5ec30f3757b76358 Mon Sep 17 00:00:00 2001
From: schillic <git@christianschilling.net>
Date: Sun, 29 Dec 2024 13:00:42 +0100
Subject: [PATCH 2/2] simplify Dict interaction with 'get'

---
 src/Comparison/tolerance.jl | 24 +++++++++---------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/src/Comparison/tolerance.jl b/src/Comparison/tolerance.jl
index de4e6ef..72d30bc 100644
--- a/src/Comparison/tolerance.jl
+++ b/src/Comparison/tolerance.jl
@@ -87,23 +87,17 @@ _rtol(N::Type{<:Number})::N = get!(TOL_N, N, default_tolerance(N)).rtol
 _ztol(N::Type{<:Number})::N = get!(TOL_N, N, default_tolerance(N)).ztol
 _atol(N::Type{<:Number})::N = get!(TOL_N, N, default_tolerance(N)).atol
 
-set_rtol(N::Type{NT}, ε::NT) where {NT<:Number} = begin
-    if N ∉ keys(TOL_N)
-        TOL_N[N] = default_tolerance(N)
-    end
-    TOL_N[N].rtol = ε
+function set_rtol(N::Type{NT}, ε::NT) where {NT<:Number}
+    tol = get!(TOL_N, N, default_tolerance(N))
+    tol.rtol = ε
 end
 
-set_ztol(N::Type{NT}, ε::NT) where {NT<:Number} = begin
-    if N ∉ keys(TOL_N)
-        TOL_N[N] = default_tolerance(N)
-    end
-    TOL_N[N].ztol = ε
+function set_ztol(N::Type{NT}, ε::NT) where {NT<:Number}
+    tol = get!(TOL_N, N, default_tolerance(N))
+    tol.ztol = ε
 end
 
-set_atol(N::Type{NT}, ε::NT) where {NT<:Number} = begin
-    if N ∉ keys(TOL_N)
-        TOL_N[N] = default_tolerance(N)
-    end
-    TOL_N[N].atol = ε
+function set_atol(N::Type{NT}, ε::NT) where {NT<:Number}
+    tol = get!(TOL_N, N, default_tolerance(N))
+    tol.atol = ε
 end