From 0b9f7826912a547a157911db9639685dc32e1297 Mon Sep 17 00:00:00 2001
From: Maxime Coste <mawww@kakoune.org>
Date: Wed, 19 Dec 2018 19:14:42 +1100
Subject: [PATCH] Take iterators by const-ref in ThreadedRegexVM::exec

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

diff --git a/src/regex_impl.hh b/src/regex_impl.hh
index 79eef584..9cf3c585 100644
--- a/src/regex_impl.hh
+++ b/src/regex_impl.hh
@@ -184,8 +184,8 @@ public:
         }
     }
 
-    bool exec(Iterator begin, Iterator end,
-              Iterator subject_begin, Iterator subject_end,
+    bool exec(const Iterator& begin, const Iterator& end,
+              const Iterator& subject_begin, const Iterator& subject_end,
               RegexExecFlags flags)
     {
         if (flags & RegexExecFlags::NotInitialNull and begin == end)