use const+reference

[kdenlive] / src / kdenlivedoc.cpp

diff --git a/src/kdenlivedoc.cpp b/src/kdenlivedoc.cpp
index 12380e128b18c201745ce8a71c348813b45e1b19..4ecf1c4a2086bd382d9ed2a34ee156695c71386e 100644 (file)
--- a/src/kdenlivedoc.cpp
+++ b/src/kdenlivedoc.cpp
@@ -1850,7 +1850,7 @@ const QMap <QString, QString> KdenliveDoc::metadata() const
     return m_documentMetadata;
 }
 
-void KdenliveDoc::setMetadata(const QMap <QString, QString> meta)
+void KdenliveDoc::setMetadata(const QMap<QString, QString> &meta)
 {
     setModified(true);
     m_documentMetadata = meta;