From ec2a3f3d9c9a720c02cea1fa0bbe84982016a51e Mon Sep 17 00:00:00 2001
From: Waqar Ahmed <waqar.17a@gmail.com>
Date: Thu, 14 Nov 2019 10:49:05 +0500
Subject: [PATCH] Use const refs to avoid copying

---
 cpp/diff_match_patch.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cpp/diff_match_patch.cpp b/cpp/diff_match_patch.cpp
index 64f270c..5cc2f20 100644
--- a/cpp/diff_match_patch.cpp
+++ b/cpp/diff_match_patch.cpp
@@ -234,7 +234,7 @@ QList<Diff> diff_match_patch::diff_main(const QString &text1,
 }
 
 
-QList<Diff> diff_match_patch::diff_compute(QString text1, QString text2,
+QList<Diff> diff_match_patch::diff_compute(const QString &text1, const QString &text2,
     bool checklines, clock_t deadline) {
   QList<Diff> diffs;
 
@@ -1739,7 +1739,7 @@ QList<Patch> diff_match_patch::patch_make(const QString &text1,
 }
 
 
-QList<Patch> diff_match_patch::patch_deepCopy(QList<Patch> &patches) {
+QList<Patch> diff_match_patch::patch_deepCopy(const QList<Patch> &patches) {
   QList<Patch> patchesCopy;
   foreach(Patch aPatch, patches) {
     Patch patchCopy = Patch();