8 files changed, 9 insertions, 9 deletions
diff --git a/src/corelib/io/qabstractfileengine_p.h b/src/corelib/io/qabstractfileengine_p.h
index 4a7fe7bff5..c88b66c7ce 100644
--- a/src/corelib/io/qabstractfileengine_p.h
+++ b/src/corelib/io/qabstractfileengine_p.h
@@ -193,7 +193,7 @@ public:
         uchar *address;
     };
 
-    virtual bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0);
+    virtual bool extension(Extension extension, const ExtensionOption *option = nullptr, ExtensionReturn *output = nullptr);
     virtual bool supportsExtension(Extension extension) const;
 
     // Factory
diff --git a/src/corelib/io/qfileinfo_p.h b/src/corelib/io/qfileinfo_p.h
index e4b28f4519..36f440812f 100644
--- a/src/corelib/io/qfileinfo_p.h
+++ b/src/corelib/io/qfileinfo_p.h
@@ -80,7 +80,7 @@ public:
     };
 
     inline QFileInfoPrivate()
-        : QSharedData(), fileEngine(0),
+        : QSharedData(), fileEngine(nullptr),
         cachedFlags(0),
         isDefaultConstructed(true),
         cache_enabled(true), fileFlags(0), fileSize(0)
diff --git a/src/corelib/io/qfilesystemengine_p.h b/src/corelib/io/qfilesystemengine_p.h
index 09ec2d6a10..e44837747c 100644
--- a/src/corelib/io/qfilesystemengine_p.h
+++ b/src/corelib/io/qfilesystemengine_p.h
@@ -130,7 +130,7 @@ public:
     static bool removeFile(const QFileSystemEntry &entry, QSystemError &error);
 
     static bool setPermissions(const QFileSystemEntry &entry, QFile::Permissions permissions, QSystemError &error,
-                               QFileSystemMetaData *data = 0);
+                               QFileSystemMetaData *data = nullptr);
 
     // unused, therefore not implemented
     static bool setFileTime(const QFileSystemEntry &entry, const QDateTime &newDate,
diff --git a/src/corelib/io/qfilesystemmetadata_p.h b/src/corelib/io/qfilesystemmetadata_p.h
index 4d2a5acb9b..81f4b3ba13 100644
--- a/src/corelib/io/qfilesystemmetadata_p.h
+++ b/src/corelib/io/qfilesystemmetadata_p.h
@@ -76,7 +76,7 @@ class Q_AUTOTEST_EXPORT QFileSystemMetaData
 {
 public:
     QFileSystemMetaData()
-        : knownFlagsMask(0),
+        : knownFlagsMask(nullptr),
           size_(-1)
     {
     }
@@ -184,7 +184,7 @@ public:
 
     void clear()
     {
-        knownFlagsMask = 0;
+        knownFlagsMask = nullptr;
     }
 
     void clearFlags(MetaDataFlags flags = AllMetaDataFlags)
diff --git a/src/corelib/io/qfsfileengine_p.h b/src/corelib/io/qfsfileengine_p.h
index 6b091a8eef..0f416f4886 100644
--- a/src/corelib/io/qfsfileengine_p.h
+++ b/src/corelib/io/qfsfileengine_p.h
@@ -115,7 +115,7 @@ public:
     virtual bool isUnnamedFile() const
     { return false; }
 
-    bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) override;
+    bool extension(Extension extension, const ExtensionOption *option = nullptr, ExtensionReturn *output = nullptr) override;
     bool supportsExtension(Extension extension) const override;
 
     //FS only!!
diff --git a/src/corelib/io/qprocess_p.h b/src/corelib/io/qprocess_p.h
index aa7ecbe91d..1bc63240fe 100644
--- a/src/corelib/io/qprocess_p.h
+++ b/src/corelib/io/qprocess_p.h
@@ -247,7 +247,7 @@ public:
             // if you add "= 4" here, increase the number of bits below
         };
 
-        Channel() : process(0), notifier(0), type(Normal), closed(false), append(false)
+        Channel() : process(nullptr), notifier(nullptr), type(Normal), closed(false), append(false)
         {
             pipe[0] = INVALID_Q_PIPE;
             pipe[1] = INVALID_Q_PIPE;
diff --git a/src/corelib/io/qresource_p.h b/src/corelib/io/qresource_p.h
index 7451de8809..fedf95bb33 100644
--- a/src/corelib/io/qresource_p.h
+++ b/src/corelib/io/qresource_p.h
@@ -108,7 +108,7 @@ public:
     Iterator *beginEntryList(QDir::Filters filters, const QStringList &filterNames) override;
     Iterator *endEntryList() override;
 
-    bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) override;
+    bool extension(Extension extension, const ExtensionOption *option = nullptr, ExtensionReturn *output = nullptr) override;
     bool supportsExtension(Extension extension) const override;
 };
 
diff --git a/src/corelib/io/qurl_p.h b/src/corelib/io/qurl_p.h
index 1b9237e58a..e75de32e03 100644
--- a/src/corelib/io/qurl_p.h
+++ b/src/corelib/io/qurl_p.h
@@ -59,7 +59,7 @@ QT_BEGIN_NAMESPACE
 
 // in qurlrecode.cpp
 extern Q_AUTOTEST_EXPORT int qt_urlRecode(QString &appendTo, const QChar *begin, const QChar *end,
-                                          QUrl::ComponentFormattingOptions encoding, const ushort *tableModifications = 0);
+                                          QUrl::ComponentFormattingOptions encoding, const ushort *tableModifications = nullptr);
 
 // in qurlidna.cpp
 enum AceLeadingDot { AllowLeadingDot, ForbidLeadingDot };