From 1160baa61bad605cf8a1d583e8ae356a54a942df Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Thu, 26 Jul 2018 16:18:40 -0400
Subject: many changes, including new spin spaces and groups and cleaning up
 core library code

---
 src/wolff_On.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/wolff_On.cpp')

diff --git a/src/wolff_On.cpp b/src/wolff_On.cpp
index 5458860..cbde498 100644
--- a/src/wolff_On.cpp
+++ b/src/wolff_On.cpp
@@ -206,7 +206,7 @@ int main(int argc, char *argv[]) {
 
   std::function <void(const On_t *)> measurements = measure_function_write_files(measurement_flags, outfiles, other_f);
 
-  std::function <double(vector_R_t)> H;
+  std::function <double(const vector_R_t&)> H;
 
   if (modulated_field) {
     H = std::bind(H_modulated, std::placeholders::_1, order, H_vec[0]);
-- 
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