Add literal operators for QString and QByteArray

[ChangeLog][QtCore][QString] Added literal operator
u"..."_qs that converts a char16_t string literal to QString

[ChangeLog][QtCore][QByteArray] Added literal operator
"..."_qba that converts char string literal to QByteArray

Change-Id: I4aa59b28cc17bff346b378eb70008fb8185d21ac
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/auto/corelib/text/qstring/tst_qstring.cpp b/tests/auto/corelib/text/qstring/tst_qstring.cpp
index 79c4fa4ab0..f36da049f9 100644
--- a/tests/auto/corelib/text/qstring/tst_qstring.cpp
+++ b/tests/auto/corelib/text/qstring/tst_qstring.cpp
@@ -569,6 +569,7 @@ private slots:
 #if !defined(QT_NO_UNICODE_LITERAL)
     void literals();
 #endif
+    void userDefinedLiterals();
     void eightBitLiterals_data();
     void eightBitLiterals();
     void reserve();
@@ -6445,6 +6446,29 @@ void tst_QString::literals()
 }
 #endif
 
+void tst_QString::userDefinedLiterals()
+{
+    QString str = u"abcd"_qs;
+
+    QVERIFY(str.length() == 4);
+    QCOMPARE(str.capacity(), 0);
+    QVERIFY(str == QLatin1String("abcd"));
+    QVERIFY(!str.data_ptr()->isMutable());
+
+    const QChar *s = str.constData();
+    QString str2 = str;
+    QVERIFY(str2.constData() == s);
+    QCOMPARE(str2.capacity(), 0);
+
+    // detach on non const access
+    QVERIFY(str.data() != s);
+    QVERIFY(str.capacity() >= str.length());
+
+    QVERIFY(str2.constData() == s);
+    QVERIFY(str2.data() != s);
+    QVERIFY(str2.capacity() >= str2.length());
+}
+
 void tst_QString::eightBitLiterals_data()
 {
     QTest::addColumn<QByteArray>("data");