From 4872191edb2d86f0dea008e3c369c12b5b420724 Mon Sep 17 00:00:00 2001
From: Oscar Dowson <o.dowson@gmail.com>
Date: Tue, 21 Oct 2025 11:11:31 +1300
Subject: [PATCH] Remove dependency on MutableArithmetics

---
 Project.toml                                         | 2 --
 src/MOI_wrapper/hermitian_complex_psd_cone_bridge.jl | 8 ++++----
 src/SCS.jl                                           | 1 -
 3 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/Project.toml b/Project.toml
index fb90ee29..7b37b6a6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -6,7 +6,6 @@ repo = "https://github.com/jump-dev/SCS.jl"
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MathOptInterface = "b8f27783-ece8-5eb3-8dc8-9495eed66fee"
-MutableArithmetics = "d8a4904e-b15c-11e9-3269-09a3773c0cb0"
 OpenBLAS32_jll = "656ef2d0-ae68-5445-9ca0-591084a874a2"
 PrecompileTools = "aea7be01-6a6a-4083-8856-8a6e6704d82a"
 SCS_jll = "f4f2fc5b-1d94-523c-97ea-2ab488bedf4b"
@@ -23,7 +22,6 @@ SCSSCS_MKL_jllExt = ["SCS_MKL_jll"]
 [compat]
 LinearAlgebra = "1.10.0"
 MathOptInterface = "1.20"
-MutableArithmetics = "1"
 OpenBLAS32_jll = "0.3.10"
 Pkg = "1"
 PrecompileTools = "1"
diff --git a/src/MOI_wrapper/hermitian_complex_psd_cone_bridge.jl b/src/MOI_wrapper/hermitian_complex_psd_cone_bridge.jl
index 3b62324c..b3b7469b 100644
--- a/src/MOI_wrapper/hermitian_complex_psd_cone_bridge.jl
+++ b/src/MOI_wrapper/hermitian_complex_psd_cone_bridge.jl
@@ -35,19 +35,19 @@ function MOI.Utilities.set_dot(
     y::AbstractVector{T},
     set::ComplexPositiveSemidefiniteConeTriangle,
 ) where {S,T}
-    U = MA.promote_operation(MA.add_mul, S, T)
+    U = promote_type(S, T)
     result = zero(U)
     d = set.side_dimension
     k = 0
     for j in 1:d
         for i in 1:j-1
             k += 1
-            result = MA.add_mul!!(result, 2, x[k], y[k])
+            result += 2 * x[k] * y[k]
             k += 1
-            result = MA.add_mul!!(result, 2, x[k], y[k])
+            result += 2 * x[k] * y[k]
         end
         k += 1
-        result = MA.add_mul!!(result, x[k], y[k])
+        result += x[k] * y[k]
     end
     return result
 end
diff --git a/src/SCS.jl b/src/SCS.jl
index e78e7fb3..120b5541 100644
--- a/src/SCS.jl
+++ b/src/SCS.jl
@@ -7,7 +7,6 @@ module SCS
 
 import LinearAlgebra
 import MathOptInterface as MOI
-import MutableArithmetics as MA
 import OpenBLAS32_jll
 import SCS_jll: libscsdir, libscsindir
 import SparseArrays