From b7657ddccbe0a5ab1cdfc61ae6b7f0501dbfb24a Mon Sep 17 00:00:00 2001
From: David Faure <david.faure@kdab.com>
Date: Mon, 20 Nov 2023 20:46:23 +0100
Subject: qDebug: add support for std::optional and std::nullopt_t

[ChangeLog][QtCore][QDebug] Added support for std::optional
and std::nullopt_t

Change-Id: I1e6196adb408401cae8776cd0c60af294a39a83f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
---
 src/corelib/io/qdebug.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/corelib/io/qdebug.cpp')

diff --git a/src/corelib/io/qdebug.cpp b/src/corelib/io/qdebug.cpp
index 5c42ee2e1cf..4f6b1696eb9 100644
--- a/src/corelib/io/qdebug.cpp
+++ b/src/corelib/io/qdebug.cpp
@@ -1018,6 +1018,15 @@ QDebug &QDebug::resetFormat()
     \c T2 need to support streaming into QDebug.
 */
 
+/*!
+    \since 6.7
+    \fn template <class T> QDebug operator<<(QDebug debug, const std::optional<T> &opt)
+    \relates QDebug
+
+    Writes the contents of \a opt (or \c nullopt if not set) to \a debug.
+    \c T needs to support streaming into QDebug.
+*/
+
 /*!
     \fn template <typename T> QDebug operator<<(QDebug debug, const QContiguousCache<T> &cache)
     \relates QDebug
@@ -1050,6 +1059,13 @@ QDebug &QDebug::resetFormat()
   \internal
  */
 
+/*!
+    \since 6.7
+    \fn QDebug &QDebug::operator<<(std::nullopt_t)
+
+    Writes nullopt to the stream.
+*/
+
 /*!
     \class QDebugStateSaver
     \inmodule QtCore
-- 
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