Doc: replace 0 with \nullptr in documentation

Replace some more 0 with \nullptr.

Change-Id: I2af91bf3712eef5161b11da0c44614bc039ade03
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

3 files changed, 12 insertions, 12 deletions

diff --git a/src/corelib/codecs/qtextcodec.cpp b/src/corelib/codecs/qtextcodec.cpp
index 804e0b2935..e2598b7858 100644
--- a/src/corelib/codecs/qtextcodec.cpp
+++ b/src/corelib/codecs/qtextcodec.cpp
@@ -764,7 +764,7 @@ QList<QByteArray> QTextCodec::aliases() const
     encoding of the subclass to Unicode, and returns the result in a
     QString.
 
-    \a state can be 0, in which case the conversion is stateless and
+    \a state can be \nullptr, in which case the conversion is stateless and
     default conversion rules should be used. If state is not 0, the
     codec should save the state after the conversion in \a state, and
     adjust the \c remainingChars and \c invalidChars members of the struct.
@@ -780,7 +780,7 @@ QList<QByteArray> QTextCodec::aliases() const
     from Unicode to the encoding of the subclass, and returns the result
     in a QByteArray.
 
-    \a state can be 0 in which case the conversion is stateless and
+    \a state can be \nullptr in which case the conversion is stateless and
     default conversion rules should be used. If state is not 0, the
     codec should save the state after the conversion in \a state, and
     adjust the \c remainingChars and \c invalidChars members of the struct.
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 3a3eb726fa..15955e1665 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -2934,8 +2934,8 @@ QMetaObject::Connection QObject::connect(const QObject *sender, const QMetaMetho
     0 may be used as a wildcard, meaning "any signal", "any receiving
     object", or "any slot in the receiving object", respectively.
 
-    The \a sender may never be 0. (You cannot disconnect signals from
-    more than one object in a single call.)
+    The \a sender may never be \nullptr. (You cannot disconnect signals
+    from more than one object in a single call.)
 
     If \a signal is 0, it disconnects \a receiver and \a method from
     any signal. If not, only the specified signal is disconnected.
@@ -2946,8 +2946,8 @@ QMetaObject::Connection QObject::connect(const QObject *sender, const QMetaMetho
 
     If \a method is 0, it disconnects anything that is connected to \a
     receiver. If not, only slots named \a method will be disconnected,
-    and all other slots are left alone. The \a method must be 0 if \a
-    receiver is left out, so you cannot disconnect a
+    and all other slots are left alone. The \a method must be \nullptr
+    if \a receiver is left out, so you cannot disconnect a
     specifically-named slot on all objects.
 
     \sa connect()
@@ -4991,8 +4991,8 @@ bool QObject::disconnect(const QMetaObject::Connection &connection)
     0 may be used as a wildcard, meaning "any signal", "any receiving
     object", or "any slot in the receiving object", respectively.
 
-    The \a sender may never be 0. (You cannot disconnect signals from
-    more than one object in a single call.)
+    The \a sender may never be \nullptr. (You cannot disconnect signals
+    from more than one object in a single call.)
 
     If \a signal is 0, it disconnects \a receiver and \a method from
     any signal. If not, only the specified signal is disconnected.
@@ -5003,8 +5003,8 @@ bool QObject::disconnect(const QMetaObject::Connection &connection)
 
     If \a method is 0, it disconnects anything that is connected to \a
     receiver. If not, only slots named \a method will be disconnected,
-    and all other slots are left alone. The \a method must be 0 if \a
-    receiver is left out, so you cannot disconnect a
+    and all other slots are left alone. The \a method must be \nullptr
+    if \a receiver is left out, so you cannot disconnect a
     specifically-named slot on all objects.
 
     \note It is not possible to use this overload to diconnect signals
diff --git a/src/corelib/plugin/qlibrary.cpp b/src/corelib/plugin/qlibrary.cpp
index aa63ed1a6b..6635286f76 100644
--- a/src/corelib/plugin/qlibrary.cpp
+++ b/src/corelib/plugin/qlibrary.cpp
@@ -133,8 +133,8 @@ QT_BEGIN_NAMESPACE
     The following code snippet loads a library, resolves the symbol
     "mysymbol", and calls the function if everything succeeded. If
     something goes wrong, e.g. the library file does not exist or the
-    symbol is not defined, the function pointer will be 0 and won't be
-    called.
+    symbol is not defined, the function pointer will be \nullptr and
+    won't be called.
 
     \snippet code/src_corelib_plugin_qlibrary.cpp 0