From 0a55572529dbc9e64a232e2ba22ede1b10fbd8eb Mon Sep 17 00:00:00 2001
From: Morten Konggaard Schou <mschou15@student.aau.dk>
Date: Mon, 23 Mar 2020 17:44:06 +0100
Subject: [PATCH] Add missing const in weight function

---
 src/pdaaal/Weight.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pdaaal/Weight.h b/src/pdaaal/Weight.h
index 9d03426..36e0a0c 100644
--- a/src/pdaaal/Weight.h
+++ b/src/pdaaal/Weight.h
@@ -189,7 +189,7 @@ namespace pdaaal {
 
         explicit ordered_weight_function(std::vector<linear_weight_function<W, Args...>> functions) : _functions(functions) {}
 
-        constexpr result_type operator()(Args... args) {
+        constexpr result_type operator()(Args... args) const {
             std::vector<W> result;
             std::transform(_functions.begin(), _functions.end(), std::back_inserter(result),
                     [&args...](const linear_weight_function<W, Args...>& f) -> W { return f(args...); });