From 7c8126d9099841fd0ccf643d36b963a75161aab9 Mon Sep 17 00:00:00 2001
From: Marc Mutz <marc.mutz@qt.io>
Date: Tue, 28 Dec 2021 09:06:53 +0100
Subject: [PATCH] QTestData: fix streaming of u8 string literals in C++20 mode

...fixing tst_QLocale:

  QDEBUG : tst_QLocale::formatDate() expected data of type 'QString', got 'char8_t [64]' for element 1 of data with tag 'unicode in format string'
  QFATAL : tst_QLocale::formatDate() ASSERT: false in file /home/marc/Qt/qtbase/src/testlib/qtestdata.cpp, line 105

In C++20, the type of u8 string literals changed from const char[] to
const char8_t[].

[ChangeLog][QtTest][QTestData] Fixed streaming of u8 string literals
in C++20 mode.

Pick-to: 6.3 6.2 5.15
Task-number: QTBUG-99480
Task-number: QTBUG-99481
Change-Id: I53bd73522a4ebce307f360e225f25590f981d44a
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
---
 src/testlib/qtestdata.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/testlib/qtestdata.h b/src/testlib/qtestdata.h
index cf10fed8f3..ed81a9de6e 100644
--- a/src/testlib/qtestdata.h
+++ b/src/testlib/qtestdata.h
@@ -85,6 +85,14 @@ inline QTestData &operator<<(QTestData &data, const char * value)
     return data;
 }
 
+#ifdef __cpp_char8_t
+Q_WEAK_OVERLOAD
+inline QTestData &operator<<(QTestData &data, const char8_t *value)
+{
+    return data << reinterpret_cast<const char *>(value);
+}
+#endif
+
 #ifdef QT_USE_QSTRINGBUILDER
 template<typename A, typename B>
 inline QTestData &operator<<(QTestData &data, const QStringBuilder<A, B> &value)