From 4d5ef296c2306a668a831ee495857fe2693e46bb Mon Sep 17 00:00:00 2001
From: Michael Zingale <michael.zingale@stonybrook.edu>
Date: Sat, 20 Jul 2024 11:33:17 -0400
Subject: [PATCH] some const

---
 util/hybrj/hybrj_dogleg.H | 6 +++---
 util/hybrj/hybrj_enorm.H  | 6 +++---
 util/hybrj/hybrj_type.H   | 4 ++--
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/util/hybrj/hybrj_dogleg.H b/util/hybrj/hybrj_dogleg.H
index c8a61dd8e9..88d17c32b4 100644
--- a/util/hybrj/hybrj_dogleg.H
+++ b/util/hybrj/hybrj_dogleg.H
@@ -43,9 +43,9 @@
 
 template<int neqs>
 AMREX_GPU_HOST_DEVICE AMREX_INLINE
-void dogleg(amrex::Array1D<amrex::Real, 1, neqs * (neqs + 1) / 2>& r,
-            amrex::Array1D<amrex::Real, 1, neqs>& diag,
-            amrex::Array1D<amrex::Real, 1, neqs>& qtb,
+void dogleg(const amrex::Array1D<amrex::Real, 1, neqs * (neqs + 1) / 2>& r,
+            const amrex::Array1D<amrex::Real, 1, neqs>& diag,
+            const amrex::Array1D<amrex::Real, 1, neqs>& qtb,
             amrex::Real delta,
             amrex::Array1D<amrex::Real, 1, neqs>& x,
             amrex::Array1D<amrex::Real, 1, neqs>& wa1,
diff --git a/util/hybrj/hybrj_enorm.H b/util/hybrj/hybrj_enorm.H
index 60cbe91467..f2f6a137f5 100644
--- a/util/hybrj/hybrj_enorm.H
+++ b/util/hybrj/hybrj_enorm.H
@@ -24,12 +24,12 @@
 
 template<int neqs>
 AMREX_GPU_HOST_DEVICE AMREX_INLINE
-amrex::Real enorm(const int n, amrex::Array1D<amrex::Real, 1, neqs>& x) {
+amrex::Real enorm(const int n, const amrex::Array1D<amrex::Real, 1, neqs>& x) {
 
     // note: n <= neqs
 
-    const amrex::Real rdwarf = 3.834e-20_rt;
-    const amrex::Real rgiant = 1.304e19_rt;
+    constexpr amrex::Real rdwarf = 3.834e-20_rt;
+    constexpr amrex::Real rgiant = 1.304e19_rt;
 
     amrex::Real s1 = 0.0_rt;
     amrex::Real s2 = 0.0_rt;
diff --git a/util/hybrj/hybrj_type.H b/util/hybrj/hybrj_type.H
index b573ef4bb5..90dd00697b 100644
--- a/util/hybrj/hybrj_type.H
+++ b/util/hybrj/hybrj_type.H
@@ -16,14 +16,14 @@ using namespace amrex::literals;
 // maxfev is a positive integer input variable. termination
 // occurs when the number of calls to fcn with iflag = 1
 // has reached maxfev.
-const int maxfev = 1000;
+constexpr int maxfev = 1000;
 
 // factor is a positive input variable used in determining the
 // initial step bound. this bound is set to the product of
 // factor and the euclidean norm of diag*x if nonzero, or else
 // to factor itself. in most cases factor should lie in the
 // interval (.1,100.). 100. is a generally recommended value.
-const amrex::Real factor = 100.0_rt;
+constexpr amrex::Real factor = 100.0_rt;
 
 template<int neqs>
 struct hybrj_t {