From 3e9dd77db11557dccc36b23d3cbcb8d2301a4237 Mon Sep 17 00:00:00 2001
From: Liwei Ji <jiliwei.phys@gmail.com>
Date: Wed, 30 Oct 2024 22:06:09 -0400
Subject: [PATCH] TestDerivs: pass integer for pown

---
 TestDerivs/src/test.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/TestDerivs/src/test.cxx b/TestDerivs/src/test.cxx
index 4d2ded24b..cd365a3c8 100644
--- a/TestDerivs/src/test.cxx
+++ b/TestDerivs/src/test.cxx
@@ -335,7 +335,7 @@ extern "C" void TestDerivs_CalcError(CCTK_ARGUMENTS) {
 
         const int diss_order = deriv_order + 2;
         const CCTK_REAL diss =
-            Arith::pown(-1, diss_order / 2.0 - 1.0) /
+            Arith::pown(-1, diss_order / 2 - 1) /
             Arith::pown(2, diss_order) *
             poly_diss(kxx, kxy, kyz, p.x, p.y, p.z, diss_order, dx);
         chi_diss_error(p.I) = diss - chi_diss(p.I);