Add SparseArrays extension

Author: OlivierHnt

Project.toml

@@ -15,12 +15,14 @@ DiffRules = "b552c78f-8df3-52c6-915a-8e097449b14b"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 IntervalSets = "8197267c-284f-5f27-9208-e0e47529a953"
 RecipesBase = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"
+SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [extensions]
 IntervalArithmeticDiffRulesExt = "DiffRules"
 IntervalArithmeticForwardDiffExt = "ForwardDiff"
 IntervalArithmeticIntervalSetsExt = "IntervalSets"
 IntervalArithmeticRecipesBaseExt = "RecipesBase"
+IntervalArithmeticSparseArraysExt = "SparseArrays"
 
 [compat]
 CRlibm = "1.0.2"
@@ -32,4 +34,5 @@ MacroTools = "0.5"
 OpenBLASConsistentFPCSR_jll = "0.3.29"
 RecipesBase = "1"
 RoundingEmulator = "0.2"
+SparseArrays = "1.9.0"
 julia = "1.9"

ext/IntervalArithmeticSparseArraysExt.jl

@@ -0,0 +1,10 @@
+module IntervalArithmeticSparseArraysExt
+
+ using IntervalArithmetic
+ import SparseArrays
+
+ SparseArrays._iszero(x::Interval) = isthinzero(x)
+
+ SparseArrays._isnotzero(x::Interval) = !isthinzero(x)
+
+ end