QDebug: Support standard strings and string views directly

[ChangeLog][QtCore][QDebug] QDebug now supports printing
std::strings and std::string_views (and their wide, u16, and
u32 variants) directly.

Task-number: QTBUG-96878
Change-Id: I7baf4fe688bfff50580b1cee9417af13949374cc
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 73 insertions, 0 deletions

diff --git a/src/corelib/io/qdebug.cpp b/src/corelib/io/qdebug.cpp
index f07bb05c5b..61d67ecee5 100644
--- a/src/corelib/io/qdebug.cpp
+++ b/src/corelib/io/qdebug.cpp
@@ -764,6 +764,79 @@ QDebug &QDebug::resetFormat()
 */
 
 /*!
+    \since 6.5
+    \fn QDebug &QDebug::operator<<(const std::string &s)
+
+    Converts \a s to a QUtf8StringView,
+    writes the result to the stream and returns
+    a reference to the stream.
+*/
+
+/*!
+    \since 6.5
+    \fn QDebug &QDebug::operator<<(std::string_view s)
+
+    Converts \a s to a QUtf8StringView,
+    writes the result to the stream and returns
+    a reference to the stream.
+*/
+
+
+/*!
+    \since 6.5
+    \fn QDebug &QDebug::operator<<(const std::wstring &s)
+
+    Converts \a s to a QString via QString::fromStdWString(),
+    writes the result to the stream and returns
+    a reference to the stream.
+*/
+
+/*!
+    \since 6.5
+    \fn QDebug &QDebug::operator<<(std::wstring_view s)
+
+    Converts \a s to a QString via QString::fromWCharArray(),
+    writes the result to the stream and returns
+    a reference to the stream.
+*/
+
+/*!
+    \since 6.5
+    \fn QDebug &QDebug::operator<<(const std::u16string &s)
+
+    Converts \a s to a QStringView,
+    writes the result to the stream and returns
+    a reference to the stream.
+*/
+
+/*!
+    \since 6.5
+    \fn QDebug &QDebug::operator<<(std::u16string_view s)
+
+    Converts \a s to a QStringView,
+    writes the result to the stream and returns
+    a reference to the stream.
+*/
+
+/*!
+    \since 6.5
+    \fn QDebug &QDebug::operator<<(const std::u32string &s)
+
+    Converts \a s to a QString via QString::fromUcs4(),
+    writes the result to the stream and returns
+    a reference to the stream.
+*/
+
+/*!
+    \since 6.5
+    \fn QDebug &QDebug::operator<<(std::u32string_view s)
+
+    Converts \a s to a QString via QString::fromUcs4(),
+    writes the result to the stream and returns
+    a reference to the stream.
+*/
+
+/*!
     \fn template <class T> QString QDebug::toString(T &&object)
     \since 6.0