From 145a056a3b3f3604215cedfb3fc364332d2840de Mon Sep 17 00:00:00 2001
From: Bob Polis <rpb.polis@avans.nl>
Date: Thu, 2 Dec 2021 18:14:34 +0100
Subject: [PATCH] changed return from choice to const ref

---
 src/random.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/random.hpp b/src/random.hpp
index 894f458..cb7c3d4 100644
--- a/src/random.hpp
+++ b/src/random.hpp
@@ -26,13 +26,13 @@ namespace sc {
             static double double_between(double from, double to);
 
             template <typename T>
-            static T choice(const std::vector<T>& vec) {
+            static const T& choice(const std::vector<T>& vec) {
                 std::uniform_int_distribution<int> dist {0, static_cast<int>(vec.size()) - 1};
                 return vec[dist(instance()._reng)];
             }
 
             template <typename T, typename Iter>
-            static T choice(Iter from, Iter to) {
+            static const T& choice(Iter from, Iter to) {
                 std::uniform_int_distribution<int> dist {0, static_cast<int>(to - from) - 1};
                 return *(from + dist(instance()._reng));
             }