From 68c84e8f708334c7894ab497de403b5c009a4931 Mon Sep 17 00:00:00 2001
From: Ivailo Monev <xakepa10@laimg.moc>
Date: Mon, 24 Feb 2020 17:14:26 +0000
Subject: [PATCH] avoid relocations in QString::arg() QChar/char overloads

QString's += operator reallocates data and the temporary shared null will
not be used

Signed-off-by: Ivailo Monev <xakepa10@laimg.moc>
---
 src/core/tools/qstring.cpp | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/core/tools/qstring.cpp b/src/core/tools/qstring.cpp
index bc02ef398..3247c918a 100644
--- a/src/core/tools/qstring.cpp
+++ b/src/core/tools/qstring.cpp
@@ -6256,9 +6256,7 @@ QString QString::arg(qulonglong a, int fieldWidth, int base, const QChar &fillCh
 */
 QString QString::arg(QChar a, int fieldWidth, const QChar &fillChar) const
 {
-    QString c;
-    c += a;
-    return arg(c, fieldWidth, fillChar);
+    return arg(QString(a), fieldWidth, fillChar);
 }
 
 /*!
@@ -6268,9 +6266,7 @@ QString QString::arg(QChar a, int fieldWidth, const QChar &fillChar) const
 */
 QString QString::arg(char a, int fieldWidth, const QChar &fillChar) const
 {
-    QString c;
-    c += QLatin1Char(a);
-    return arg(c, fieldWidth, fillChar);
+    return arg(QString(QChar::fromLatin1(a)), fieldWidth, fillChar);
 }
 
 /*!