Tidy nullptr usage

Move away from using 0 as pointer literal.

Done using clang-tidy. This is not complete as
run-clang-tidy can't handle all of qtbase in one go.

Change-Id: I1076a21f32aac0dab078af6f175f7508145eece0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

7 files changed, 91 insertions, 91 deletions

diff --git a/src/platformsupport/eglconvenience/qeglconvenience.cpp b/src/platformsupport/eglconvenience/qeglconvenience.cpp
index 5ee4773b70..5303d37cee 100644
--- a/src/platformsupport/eglconvenience/qeglconvenience.cpp
+++ b/src/platformsupport/eglconvenience/qeglconvenience.cpp
@@ -281,11 +281,11 @@ EGLConfig QEglConfigChooser::chooseConfig()
     }
     configureAttributes.append(EGL_NONE);
 
-    EGLConfig cfg = 0;
+    EGLConfig cfg = nullptr;
     do {
         // Get the number of matching configurations for this set of properties.
         EGLint matching = 0;
-        if (!eglChooseConfig(display(), configureAttributes.constData(), 0, 0, &matching) || !matching)
+        if (!eglChooseConfig(display(), configureAttributes.constData(), nullptr, 0, &matching) || !matching)
             continue;
 
         // Fetch all of the matching configurations and find the
@@ -450,7 +450,7 @@ static struct AttrInfo attrs[] = {
     {EGL_BIND_TO_TEXTURE_RGBA, "EGL_BIND_TO_TEXTURE_RGBA"},
     {EGL_MIN_SWAP_INTERVAL, "EGL_MIN_SWAP_INTERVAL"},
     {EGL_MAX_SWAP_INTERVAL, "EGL_MAX_SWAP_INTERVAL"},
-    {-1, 0}};
+    {-1, nullptr}};
 
 void q_printEglConfig(EGLDisplay display, EGLConfig config)
 {
diff --git a/src/platformsupport/eglconvenience/qeglplatformcontext.cpp b/src/platformsupport/eglconvenience/qeglplatformcontext.cpp
index 94def16748..aa87a620d8 100644
--- a/src/platformsupport/eglconvenience/qeglplatformcontext.cpp
+++ b/src/platformsupport/eglconvenience/qeglplatformcontext.cpp
@@ -137,7 +137,7 @@ void QEGLPlatformContext::init(const QSurfaceFormat &format, QPlatformOpenGLCont
     m_format = q_glFormatFromConfig(m_eglDisplay, m_eglConfig, format);
     // m_format now has the renderableType() resolved (it cannot be Default anymore)
     // but does not yet contain version, profile, options.
-    m_shareContext = share ? static_cast<QEGLPlatformContext *>(share)->m_eglContext : 0;
+    m_shareContext = share ? static_cast<QEGLPlatformContext *>(share)->m_eglContext : nullptr;
 
     QVector<EGLint> contextAttrs;
     contextAttrs.append(EGL_CONTEXT_CLIENT_VERSION);
@@ -194,8 +194,8 @@ void QEGLPlatformContext::init(const QSurfaceFormat &format, QPlatformOpenGLCont
     eglBindAPI(m_api);
     m_eglContext = eglCreateContext(m_eglDisplay, m_eglConfig, m_shareContext, contextAttrs.constData());
     if (m_eglContext == EGL_NO_CONTEXT && m_shareContext != EGL_NO_CONTEXT) {
-        m_shareContext = 0;
-        m_eglContext = eglCreateContext(m_eglDisplay, m_eglConfig, 0, contextAttrs.constData());
+        m_shareContext = nullptr;
+        m_eglContext = eglCreateContext(m_eglDisplay, m_eglConfig, nullptr, contextAttrs.constData());
     }
 
     if (m_eglContext == EGL_NO_CONTEXT) {
@@ -262,7 +262,7 @@ void QEGLPlatformContext::adopt(const QVariant &nativeHandle, QPlatformOpenGLCon
     }
 
     m_eglContext = context;
-    m_shareContext = share ? static_cast<QEGLPlatformContext *>(share)->m_eglContext : 0;
+    m_shareContext = share ? static_cast<QEGLPlatformContext *>(share)->m_eglContext : nullptr;
     updateFormatFromGL();
 }
 
@@ -326,7 +326,7 @@ void QEGLPlatformContext::updateFormatFromGL()
     EGLBoolean ok = eglMakeCurrent(m_eglDisplay, tempSurface, tempSurface, m_eglContext);
     if (!ok) {
         EGLConfig config = q_configFromGLFormat(m_eglDisplay, m_format, false, EGL_PBUFFER_BIT);
-        tempContext = eglCreateContext(m_eglDisplay, config, 0, m_contextAttrs.constData());
+        tempContext = eglCreateContext(m_eglDisplay, config, nullptr, m_contextAttrs.constData());
         if (tempContext != EGL_NO_CONTEXT)
             ok = eglMakeCurrent(m_eglDisplay, tempSurface, tempSurface, tempContext);
     }
diff --git a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
index 48b5a74a9e..7af5490963 100644
--- a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
+++ b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
@@ -360,7 +360,7 @@ Q_STATIC_ASSERT(sizeof(capabilityForWritingSystem) / sizeof(*capabilityForWritin
 
 static const char *getFcFamilyForStyleHint(const QFont::StyleHint style)
 {
-    const char *stylehint = 0;
+    const char *stylehint = nullptr;
     switch (style) {
     case QFont::SansSerif:
         stylehint = "sans-serif";
@@ -394,7 +394,7 @@ static void populateFromPattern(FcPattern *pattern)
 {
     QString familyName;
     QString familyNameLang;
-    FcChar8 *value = 0;
+    FcChar8 *value = nullptr;
     int weight_value;
     int slant_value;
     int spacing_value;
@@ -417,7 +417,7 @@ static void populateFromPattern(FcPattern *pattern)
     slant_value = FC_SLANT_ROMAN;
     weight_value = FC_WEIGHT_REGULAR;
     spacing_value = FC_PROPORTIONAL;
-    file_value = 0;
+    file_value = nullptr;
     indexValue = 0;
     scalable = FcTrue;
 
@@ -431,20 +431,20 @@ static void populateFromPattern(FcPattern *pattern)
     if (FcPatternGetInteger(pattern, FC_SPACING, 0, &spacing_value) != FcResultMatch)
         spacing_value = FC_PROPORTIONAL;
     if (FcPatternGetString(pattern, FC_FILE, 0, &file_value) != FcResultMatch)
-        file_value = 0;
+        file_value = nullptr;
     if (FcPatternGetInteger(pattern, FC_INDEX, 0, &indexValue) != FcResultMatch)
         indexValue = 0;
     if (FcPatternGetBool(pattern, FC_SCALABLE, 0, &scalable) != FcResultMatch)
         scalable = FcTrue;
     if (FcPatternGetString(pattern, FC_FOUNDRY, 0, &foundry_value) != FcResultMatch)
-        foundry_value = 0;
+        foundry_value = nullptr;
     if (FcPatternGetString(pattern, FC_STYLE, 0, &style_value) != FcResultMatch)
-        style_value = 0;
+        style_value = nullptr;
     if (FcPatternGetBool(pattern,FC_ANTIALIAS,0,&antialias) != FcResultMatch)
         antialias = true;
 
     QSupportedWritingSystems writingSystems;
-    FcLangSet *langset = 0;
+    FcLangSet *langset = nullptr;
     FcResult res = FcPatternGetLangSet(pattern, FC_LANG, 0, &langset);
     if (res == FcResultMatch) {
         bool hasLang = false;
@@ -461,7 +461,7 @@ static void populateFromPattern(FcPattern *pattern)
                     if (*capabilityForWritingSystem[j] && requiresOpenType(j)) {
                         if (cap == nullptr)
                             capRes = FcPatternGetString(pattern, FC_CAPABILITY, 0, &cap);
-                        if (capRes == FcResultMatch && strstr(reinterpret_cast<const char *>(cap), capabilityForWritingSystem[j]) == 0)
+                        if (capRes == FcResultMatch && strstr(reinterpret_cast<const char *>(cap), capabilityForWritingSystem[j]) == nullptr)
                             continue;
                     }
 #endif
@@ -546,14 +546,14 @@ void QFontconfigDatabase::populateFontDatabase()
 #if FC_VERSION >= 20297
             FC_CAPABILITY,
 #endif
-            (const char *)0
+            (const char *)nullptr
         };
         const char **p = properties;
         while (*p) {
             FcObjectSetAdd(os, *p);
             ++p;
         }
-        fonts = FcFontList(0, pattern, os);
+        fonts = FcFontList(nullptr, pattern, os);
         FcObjectSetDestroy(os);
         FcPatternDestroy(pattern);
     }
@@ -572,7 +572,7 @@ void QFontconfigDatabase::populateFontDatabase()
         { "Serif", "serif", false },
         { "Sans Serif", "sans-serif", false },
         { "Monospace", "monospace", true },
-        { 0, 0, false }
+        { nullptr, nullptr, false }
     };
     const FcDefaultFont *f = defaults;
     // aliases only make sense for 'common', not for any of the specials
@@ -581,9 +581,9 @@ void QFontconfigDatabase::populateFontDatabase()
 
     while (f->qtname) {
         QString familyQtName = QString::fromLatin1(f->qtname);
-        registerFont(familyQtName,QString(),QString(),QFont::Normal,QFont::StyleNormal,QFont::Unstretched,true,true,0,f->fixed,ws,0);
-        registerFont(familyQtName,QString(),QString(),QFont::Normal,QFont::StyleItalic,QFont::Unstretched,true,true,0,f->fixed,ws,0);
-        registerFont(familyQtName,QString(),QString(),QFont::Normal,QFont::StyleOblique,QFont::Unstretched,true,true,0,f->fixed,ws,0);
+        registerFont(familyQtName,QString(),QString(),QFont::Normal,QFont::StyleNormal,QFont::Unstretched,true,true,0,f->fixed,ws,nullptr);
+        registerFont(familyQtName,QString(),QString(),QFont::Normal,QFont::StyleItalic,QFont::Unstretched,true,true,0,f->fixed,ws,nullptr);
+        registerFont(familyQtName,QString(),QString(),QFont::Normal,QFont::StyleOblique,QFont::Unstretched,true,true,0,f->fixed,ws,nullptr);
         ++f;
     }
 
@@ -599,7 +599,7 @@ void QFontconfigDatabase::populateFontDatabase()
 void QFontconfigDatabase::invalidate()
 {
     // Clear app fonts.
-    FcConfigAppFontClear(0);
+    FcConfigAppFontClear(nullptr);
 }
 
 QFontEngineMulti *QFontconfigDatabase::fontEngineMulti(QFontEngine *fontEngine, QChar::Script script)
@@ -691,7 +691,7 @@ QFontEngine::SubpixelAntialiasingType subpixelTypeFromMatch(FcPattern *match, bo
 QFontEngine *QFontconfigDatabase::fontEngine(const QFontDef &f, void *usrPtr)
 {
     if (!usrPtr)
-        return 0;
+        return nullptr;
 
     FontFile *fontfile = static_cast<FontFile *> (usrPtr);
     QFontEngine::FaceId fid;
@@ -706,7 +706,7 @@ QFontEngine *QFontconfigDatabase::fontEngine(const QFontDef &f, void *usrPtr)
 
     if (!engine->init(fid, engine->antialias, engine->defaultFormat) || engine->invalid()) {
         delete engine;
-        engine = 0;
+        engine = nullptr;
     }
 
     return engine;
@@ -715,8 +715,8 @@ QFontEngine *QFontconfigDatabase::fontEngine(const QFontDef &f, void *usrPtr)
 QFontEngine *QFontconfigDatabase::fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference)
 {
     QFontEngineFT *engine = static_cast<QFontEngineFT*>(QFreeTypeFontDatabase::fontEngine(fontData, pixelSize, hintingPreference));
-    if (engine == 0)
-        return 0;
+    if (engine == nullptr)
+        return nullptr;
 
     setupFontEngine(engine, engine->fontDef);
 
@@ -757,7 +757,7 @@ QStringList QFontconfigDatabase::fallbacksForFamily(const QString &family, QFont
         // while a Japanese font should be used for that if LANG=ja)
         FcPattern *dummy = FcPatternCreate();
         FcDefaultSubstitute(dummy);
-        FcChar8 *lang = 0;
+        FcChar8 *lang = nullptr;
         FcResult res = FcPatternGetString(dummy, FC_LANG, 0, &lang);
         if (res == FcResultMatch)
             FcPatternAddString(pattern, FC_LANG, lang);
@@ -770,11 +770,11 @@ QStringList QFontconfigDatabase::fallbacksForFamily(const QString &family, QFont
         FcPatternAddWeak(pattern, FC_FAMILY, value, FcTrue);
     }
 
-    FcConfigSubstitute(0, pattern, FcMatchPattern);
+    FcConfigSubstitute(nullptr, pattern, FcMatchPattern);
     FcDefaultSubstitute(pattern);
 
     FcResult result = FcResultMatch;
-    FcFontSet *fontSet = FcFontSort(0,pattern,FcFalse,0,&result);
+    FcFontSet *fontSet = FcFontSort(nullptr,pattern,FcFalse,nullptr,&result);
     FcPatternDestroy(pattern);
 
     if (fontSet) {
@@ -782,7 +782,7 @@ QStringList QFontconfigDatabase::fallbacksForFamily(const QString &family, QFont
         duplicates.reserve(fontSet->nfont + 1);
         duplicates.insert(family.toCaseFolded());
         for (int i = 0; i < fontSet->nfont; i++) {
-            FcChar8 *value = 0;
+            FcChar8 *value = nullptr;
             if (FcPatternGetString(fontSet->fonts[i], FC_FAMILY, 0, &value) != FcResultMatch)
                 continue;
             //         capitalize(value);
@@ -811,7 +811,7 @@ static FcPattern *queryFont(const FcChar8 *file, const QByteArray &data, int id,
 
     FT_Library lib = qt_getFreetype();
 
-    FcPattern *pattern = 0;
+    FcPattern *pattern = nullptr;
 
     FT_Face face;
     if (!FT_New_Memory_Face(lib, (const FT_Byte *)data.constData(), data.size(), id, &face)) {
@@ -830,16 +830,16 @@ QStringList QFontconfigDatabase::addApplicationFont(const QByteArray &fontData,
 {
     QStringList families;
 
-    FcFontSet *set = FcConfigGetFonts(0, FcSetApplication);
+    FcFontSet *set = FcConfigGetFonts(nullptr, FcSetApplication);
     if (!set) {
-        FcConfigAppFontAddFile(0, (const FcChar8 *)":/non-existent");
-        set = FcConfigGetFonts(0, FcSetApplication); // try again
+        FcConfigAppFontAddFile(nullptr, (const FcChar8 *)":/non-existent");
+        set = FcConfigGetFonts(nullptr, FcSetApplication); // try again
         if (!set)
             return families;
     }
 
     int id = 0;
-    FcBlanks *blanks = FcConfigGetBlanks(0);
+    FcBlanks *blanks = FcConfigGetBlanks(nullptr);
     int count = 0;
 
     FcPattern *pattern;
@@ -849,7 +849,7 @@ QStringList QFontconfigDatabase::addApplicationFont(const QByteArray &fontData,
         if (!pattern)
             return families;
 
-        FcChar8 *fam = 0;
+        FcChar8 *fam = nullptr;
         if (FcPatternGetString(pattern, FC_FAMILY, 0, &fam) == FcResultMatch) {
             QString family = QString::fromUtf8(reinterpret_cast<const char *>(fam));
             families << family;
@@ -877,10 +877,10 @@ QString QFontconfigDatabase::resolveFontFamilyAlias(const QString &family) const
         const QByteArray cs = family.toUtf8();
         FcPatternAddString(pattern, FC_FAMILY, (const FcChar8 *) cs.constData());
     }
-    FcConfigSubstitute(0, pattern, FcMatchPattern);
+    FcConfigSubstitute(nullptr, pattern, FcMatchPattern);
     FcDefaultSubstitute(pattern);
 
-    FcChar8 *familyAfterSubstitution = 0;
+    FcChar8 *familyAfterSubstitution = nullptr;
     FcPatternGetString(pattern, FC_FAMILY, 0, &familyAfterSubstitution);
     resolved = QString::fromUtf8((const char *) familyAfterSubstitution);
     FcPatternDestroy(pattern);
@@ -895,7 +895,7 @@ QFont QFontconfigDatabase::defaultFont() const
     // or https://bugs.freedesktop.org/show_bug.cgi?id=35482 is fixed
     FcPattern *dummy = FcPatternCreate();
     FcDefaultSubstitute(dummy);
-    FcChar8 *lang = 0;
+    FcChar8 *lang = nullptr;
     FcResult res = FcPatternGetString(dummy, FC_LANG, 0, &lang);
 
     FcPattern *pattern = FcPatternCreate();
@@ -904,10 +904,10 @@ QFont QFontconfigDatabase::defaultFont() const
         // certain FC_LANG based custom rules may happen in FcConfigSubstitute()
         FcPatternAddString(pattern, FC_LANG, lang);
     }
-    FcConfigSubstitute(0, pattern, FcMatchPattern);
+    FcConfigSubstitute(nullptr, pattern, FcMatchPattern);
     FcDefaultSubstitute(pattern);
 
-    FcChar8 *familyAfterSubstitution = 0;
+    FcChar8 *familyAfterSubstitution = nullptr;
     FcPatternGetString(pattern, FC_FAMILY, 0, &familyAfterSubstitution);
     QString resolved = QString::fromUtf8((const char *) familyAfterSubstitution);
     FcPatternDestroy(pattern);
@@ -964,10 +964,10 @@ void QFontconfigDatabase::setupFontEngine(QFontEngineFT *engine, const QFontDef
 
     FcResult result;
 
-    FcConfigSubstitute(0, pattern, FcMatchPattern);
+    FcConfigSubstitute(nullptr, pattern, FcMatchPattern);
     FcDefaultSubstitute(pattern);
 
-    FcPattern *match = FcFontMatch(0, pattern, &result);
+    FcPattern *match = FcFontMatch(nullptr, pattern, &result);
     if (match) {
         engine->setDefaultHintStyle(defaultHintStyleFromMatch((QFont::HintingPreference)fontDef.hintingPreference, match, useXftConf));
 
diff --git a/src/platformsupport/fontdatabases/fontconfig/qfontenginemultifontconfig.cpp b/src/platformsupport/fontdatabases/fontconfig/qfontenginemultifontconfig.cpp
index 2fbcb6216e..cbf0793d75 100644
--- a/src/platformsupport/fontdatabases/fontconfig/qfontenginemultifontconfig.cpp
+++ b/src/platformsupport/fontdatabases/fontconfig/qfontenginemultifontconfig.cpp
@@ -60,7 +60,7 @@ bool QFontEngineMultiFontConfig::shouldLoadFontEngineForCharacter(int at, uint u
 {
     bool charSetHasChar = true;
     FcPattern *matchPattern = getMatchPatternForFallback(at - 1);
-    if (matchPattern != 0) {
+    if (matchPattern != nullptr) {
         FcCharSet *charSet;
         FcPatternGetCharSet(matchPattern, FC_CHARSET, 0, &charSet);
         charSetHasChar = FcCharSetHasChar(charSet, ucs4);
@@ -85,7 +85,7 @@ FcPattern * QFontEngineMultiFontConfig::getMatchPatternForFallback(int fallBackI
     value.u.s = reinterpret_cast<const FcChar8 *>(cs.data());
     FcPatternAdd(requestPattern, FC_FAMILY, value, true);
     FcResult result;
-    ret = FcFontMatch(0, requestPattern, &result);
+    ret = FcFontMatch(nullptr, requestPattern, &result);
     cachedMatchPatterns.insert(fallBackIndex, ret);
     FcPatternDestroy(requestPattern);
     return ret;
diff --git a/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp b/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
index 8c6cc8fbc1..3e5939a5e4 100644
--- a/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
+++ b/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
@@ -121,7 +121,7 @@ class QtFreetypeData
 {
 public:
     QtFreetypeData()
-        : library(0)
+        : library(nullptr)
     { }
     ~QtFreetypeData();
 
@@ -135,7 +135,7 @@ QtFreetypeData::~QtFreetypeData()
         iter.value()->cleanup();
     faces.clear();
     FT_Done_FreeType(library);
-    library = 0;
+    library = nullptr;
 }
 
 Q_GLOBAL_STATIC(QThreadStorage<QtFreetypeData *>, theFreetypeData)
@@ -215,7 +215,7 @@ QFreetypeFace *QFreetypeFace::getFace(const QFontEngine::FaceId &face_id,
                                       const QByteArray &fontData)
 {
     if (face_id.filename.isEmpty() && fontData.isEmpty())
-        return 0;
+        return nullptr;
 
     QtFreetypeData *freetypeData = qt_getFreetypeData();
 
@@ -238,7 +238,7 @@ QFreetypeFace *QFreetypeFace::getFace(const QFontEngine::FaceId &face_id,
             } else if (!QFileInfo(fileName).isNativePath()) {
                 QFile file(fileName);
                 if (!file.open(QIODevice::ReadOnly)) {
-                    return 0;
+                    return nullptr;
                 }
                 newFreetype->fontData = file.readAll();
             }
@@ -247,10 +247,10 @@ QFreetypeFace *QFreetypeFace::getFace(const QFontEngine::FaceId &face_id,
         }
         if (!newFreetype->fontData.isEmpty()) {
             if (FT_New_Memory_Face(freetypeData->library, (const FT_Byte *)newFreetype->fontData.constData(), newFreetype->fontData.size(), face_id.index, &face)) {
-                return 0;
+                return nullptr;
             }
         } else if (FT_New_Face(freetypeData->library, face_id.filename, face_id.index, &face)) {
-            return 0;
+            return nullptr;
         }
         newFreetype->face = face;
 
@@ -261,8 +261,8 @@ QFreetypeFace *QFreetypeFace::getFace(const QFontEngine::FaceId &face_id,
         newFreetype->matrix.yy = 0x10000;
         newFreetype->matrix.xy = 0;
         newFreetype->matrix.yx = 0;
-        newFreetype->unicode_map = 0;
-        newFreetype->symbol_map = 0;
+        newFreetype->unicode_map = nullptr;
+        newFreetype->symbol_map = nullptr;
 
         memset(newFreetype->cmapCache, 0, sizeof(newFreetype->cmapCache));
 
@@ -307,7 +307,7 @@ void QFreetypeFace::cleanup()
 {
     hbFace.reset();
     FT_Done_Face(face);
-    face = 0;
+    face = nullptr;
 }
 
 void QFreetypeFace::release(const QFontEngine::FaceId &face_id)
@@ -324,7 +324,7 @@ void QFreetypeFace::release(const QFontEngine::FaceId &face_id)
 
             if (freetypeData->faces.isEmpty()) {
                 FT_Done_FreeType(freetypeData->library);
-                freetypeData->library = 0;
+                freetypeData->library = nullptr;
             }
         }
 
@@ -659,7 +659,7 @@ QFontEngineFT *QFontEngineFT::create(const QByteArray &fontData, qreal pixelSize
     QFontEngineFTRawData *fe = new QFontEngineFTRawData(fontDef);
     if (!fe->initFromData(fontData)) {
         delete fe;
-        return 0;
+        return nullptr;
     }
 
     fe->updateFamilyNameAndStyle();
@@ -682,7 +682,7 @@ QFontEngineFT::QFontEngineFT(const QFontDef &fd)
     embolden = false;
     obliquen = false;
     antialias = true;
-    freetype = 0;
+    freetype = nullptr;
     default_load_flags = FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH;
     default_hint_style = ftInitialDefaultHintStyle;
     subpixelType = Subpixel_None;
@@ -729,7 +729,7 @@ bool QFontEngineFT::init(FaceId faceId, bool antialias, GlyphFormat format,
 
     face_id = faceId;
 
-    symbol = freetype->symbol_map != 0;
+    symbol = freetype->symbol_map != nullptr;
     PS_FontInfoRec psrec;
     // don't assume that type1 fonts are symbol fonts by default
     if (FT_Get_PS_Font_Info(freetype->face, &psrec) == FT_Err_Ok) {
@@ -744,7 +744,7 @@ bool QFontEngineFT::init(FaceId faceId, bool antialias, GlyphFormat format,
         bool fake_oblique = (fontDef.style != QFont::StyleNormal) && !(face->style_flags & FT_STYLE_FLAG_ITALIC);
         if (fake_oblique)
             obliquen = true;
-        FT_Set_Transform(face, &matrix, 0);
+        FT_Set_Transform(face, &matrix, nullptr);
         freetype->matrix = matrix;
         // fake bold
         if ((fontDef.weight >= QFont::Bold) && !(face->style_flags & FT_STYLE_FLAG_BOLD) && !FT_IS_FIXED_WIDTH(face)) {
@@ -953,7 +953,7 @@ QFontEngineFT::Glyph *QFontEngineFT::loadGlyph(QGlyphSet *set, uint glyph,
         format = defaultFormat != Format_None ? defaultFormat : Format_Mono;
     Q_ASSERT(format != Format_None);
 
-    Glyph *g = set ? set->getGlyph(glyph, subPixelPosition) : 0;
+    Glyph *g = set ? set->getGlyph(glyph, subPixelPosition) : nullptr;
     if (g && g->format == format && (fetchMetricsOnly || g->data))
         return g;
 
@@ -1051,10 +1051,10 @@ QFontEngineFT::Glyph *QFontEngineFT::loadGlyph(QGlyphSet *set, uint glyph,
 
         // If any of the metrics are too large to fit, don't cache them
         if (areMetricsTooLarge(info))
-            return 0;
+            return nullptr;
 
         g = new Glyph;
-        g->data = 0;
+        g->data = nullptr;
         g->linearAdvance = info.linearAdvance;
         g->width = info.width;
         g->height = info.height;
@@ -1176,12 +1176,12 @@ QFontEngineFT::Glyph *QFontEngineFT::loadGlyph(QGlyphSet *set, uint glyph,
         convertRGBToARGB_V(slot->bitmap.buffer, (uint *)glyph_buffer.data(), info.width, info.height, slot->bitmap.pitch, subpixelType != Subpixel_VRGB);
     } else {
         qWarning("QFontEngine: Glyph rendered in unknown pixel_mode=%d", slot->bitmap.pixel_mode);
-        return 0;
+        return nullptr;
     }
 
     if (!g) {
         g = new Glyph;
-        g->data = 0;
+        g->data = nullptr;
     }
 
     g->linearAdvance = info.linearAdvance;
@@ -1357,7 +1357,7 @@ static inline FT_Matrix QTransformToFTMatrix(const QTransform &matrix)
 QFontEngineFT::QGlyphSet *QFontEngineFT::loadGlyphSet(const QTransform &matrix)
 {
     if (matrix.type() > QTransform::TxShear || !cacheEnabled)
-        return 0;
+        return nullptr;
 
     // FT_Set_Transform only supports scalable fonts
     if (!FT_IS_SCALABLE(freetype->face))
@@ -1365,7 +1365,7 @@ QFontEngineFT::QGlyphSet *QFontEngineFT::loadGlyphSet(const QTransform &matrix)
 
     FT_Matrix m = QTransformToFTMatrix(matrix);
 
-    QGlyphSet *gs = 0;
+    QGlyphSet *gs = nullptr;
 
     for (int i = 0; i < transformedGlyphSets.count(); ++i) {
         const QGlyphSet &g = transformedGlyphSets.at(i);
@@ -1393,7 +1393,7 @@ QFontEngineFT::QGlyphSet *QFontEngineFT::loadGlyphSet(const QTransform &matrix)
         gs->transformationMatrix = m;
         gs->outline_drawing = fontDef.pixelSize * fontDef.pixelSize * qAbs(matrix.determinant()) > QT_MAX_CACHED_GLYPH_SIZE * QT_MAX_CACHED_GLYPH_SIZE;
     }
-    Q_ASSERT(gs != 0);
+    Q_ASSERT(gs != nullptr);
 
     return gs;
 }
@@ -1401,7 +1401,7 @@ QFontEngineFT::QGlyphSet *QFontEngineFT::loadGlyphSet(const QTransform &matrix)
 void QFontEngineFT::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics)
 {
     FT_Face face = lockFace(Unscaled);
-    FT_Set_Transform(face, 0, 0);
+    FT_Set_Transform(face, nullptr, nullptr);
     FT_Load_Glyph(face, glyph, FT_LOAD_NO_BITMAP);
 
     int left  = face->glyph->metrics.horiBearingX;
@@ -1424,7 +1424,7 @@ void QFontEngineFT::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_me
     else
         QFreetypeFace::addGlyphToPath(face, face->glyph, p, path, face->units_per_EM << 6, face->units_per_EM << 6);
 
-    FT_Set_Transform(face, &freetype->matrix, 0);
+    FT_Set_Transform(face, &freetype->matrix, nullptr);
     unlockFace();
 }
 
@@ -1622,10 +1622,10 @@ glyph_metrics_t QFontEngineFT::scaledBitmapMetrics(const glyph_metrics_t &m, con
 
 void QFontEngineFT::recalcAdvances(QGlyphLayout *glyphs, QFontEngine::ShaperFlags flags) const
 {
-    FT_Face face = 0;
+    FT_Face face = nullptr;
     bool design = shouldUseDesignMetrics(flags);
     for (int i = 0; i < glyphs->numGlyphs; i++) {
-        Glyph *g = cacheEnabled ? defaultGlyphSet.getGlyph(glyphs->glyphs[i]) : 0;
+        Glyph *g = cacheEnabled ? defaultGlyphSet.getGlyph(glyphs->glyphs[i]) : nullptr;
         // Since we are passing Format_None to loadGlyph, use same default format logic as loadGlyph
         GlyphFormat acceptableFormat = (defaultFormat != Format_None) ? defaultFormat : Format_Mono;
         if (g && g->format == acceptableFormat) {
@@ -1633,7 +1633,7 @@ void QFontEngineFT::recalcAdvances(QGlyphLayout *glyphs, QFontEngine::ShaperFlag
         } else {
             if (!face)
                 face = lockFace();
-            g = loadGlyph(cacheEnabled ? &defaultGlyphSet : 0, glyphs->glyphs[i], 0, Format_None, true);
+            g = loadGlyph(cacheEnabled ? &defaultGlyphSet : nullptr, glyphs->glyphs[i], 0, Format_None, true);
             if (g)
                 glyphs->advances[i] = design ? QFixed::fromFixed(g->linearAdvance) : QFixed(g->advance);
             else
@@ -1657,7 +1657,7 @@ void QFontEngineFT::recalcAdvances(QGlyphLayout *glyphs, QFontEngine::ShaperFlag
 
 glyph_metrics_t QFontEngineFT::boundingBox(const QGlyphLayout &glyphs)
 {
-    FT_Face face = 0;
+    FT_Face face = nullptr;
 
     glyph_metrics_t overall;
     // initialize with line height, we get the same behaviour on all platforms
@@ -1672,11 +1672,11 @@ glyph_metrics_t QFontEngineFT::boundingBox(const QGlyphLayout &glyphs)
     QFixed ymax = 0;
     QFixed xmax = 0;
     for (int i = 0; i < glyphs.numGlyphs; i++) {
-        Glyph *g = cacheEnabled ? defaultGlyphSet.getGlyph(glyphs.glyphs[i]) : 0;
+        Glyph *g = cacheEnabled ? defaultGlyphSet.getGlyph(glyphs.glyphs[i]) : nullptr;
         if (!g) {
             if (!face)
                 face = lockFace();
-            g = loadGlyph(cacheEnabled ? &defaultGlyphSet : 0, glyphs.glyphs[i], 0, Format_None, true);
+            g = loadGlyph(cacheEnabled ? &defaultGlyphSet : nullptr, glyphs.glyphs[i], 0, Format_None, true);
         }
         if (g) {
             QFixed x = overall.xoff + glyphs.offsets[i].x + g->x;
@@ -1716,12 +1716,12 @@ glyph_metrics_t QFontEngineFT::boundingBox(const QGlyphLayout &glyphs)
 
 glyph_metrics_t QFontEngineFT::boundingBox(glyph_t glyph)
 {
-    FT_Face face = 0;
+    FT_Face face = nullptr;
     glyph_metrics_t overall;
-    Glyph *g = cacheEnabled ? defaultGlyphSet.getGlyph(glyph) : 0;
+    Glyph *g = cacheEnabled ? defaultGlyphSet.getGlyph(glyph) : nullptr;
     if (!g) {
         face = lockFace();
-        g = loadGlyph(cacheEnabled ? &defaultGlyphSet : 0, glyph, 0, Format_None, true);
+        g = loadGlyph(cacheEnabled ? &defaultGlyphSet : nullptr, glyph, 0, Format_None, true);
     }
     if (g) {
         overall.x = g->x;
@@ -1854,10 +1854,10 @@ QFontEngineFT::Glyph *QFontEngineFT::loadGlyphFor(glyph_t g,
                                                   bool disableOutlineDrawing)
 {
     QGlyphSet *glyphSet = loadGlyphSet(t);
-    if (glyphSet != 0 && glyphSet->outline_drawing && !disableOutlineDrawing && !fetchBoundingBox)
-        return 0;
+    if (glyphSet != nullptr && glyphSet->outline_drawing && !disableOutlineDrawing && !fetchBoundingBox)
+        return nullptr;
 
-    Glyph *glyph = glyphSet != 0 ? glyphSet->getGlyph(g, subPixelPosition) : 0;
+    Glyph *glyph = glyphSet != nullptr ? glyphSet->getGlyph(g, subPixelPosition) : nullptr;
     if (!glyph || glyph->format != format || (!fetchBoundingBox && !glyph->data)) {
         QScopedValueRollback<HintStyle> saved_default_hint_style(default_hint_style);
         if (t.type() >= QTransform::TxScale && !is2dRotation(t))
@@ -1865,7 +1865,7 @@ QFontEngineFT::Glyph *QFontEngineFT::loadGlyphFor(glyph_t g,
 
         lockFace();
         FT_Matrix m = this->matrix;
-        FT_Matrix ftMatrix = glyphSet != 0 ? glyphSet->transformationMatrix : QTransformToFTMatrix(t);
+        FT_Matrix ftMatrix = glyphSet != nullptr ? glyphSet->transformationMatrix : QTransformToFTMatrix(t);
         FT_Matrix_Multiply(&ftMatrix, &m);
         freetype->matrix = m;
         glyph = loadGlyph(glyphSet, g, subPixelPosition, format, false, disableOutlineDrawing);
@@ -1978,7 +1978,7 @@ FT_Face QFontEngineFT::lockFace(Scaling scale) const
         freetype->matrix.xy != matrix.xy ||
         freetype->matrix.yx != matrix.yx) {
         freetype->matrix = matrix;
-        FT_Set_Transform(face, &freetype->matrix, 0);
+        FT_Set_Transform(face, &freetype->matrix, nullptr);
     }
 
     return face;
@@ -2017,7 +2017,7 @@ void QFontEngineFT::QGlyphSet::clear()
         for (int i = 0; i < 256; ++i) {
             if (fast_glyph_data[i]) {
                 delete fast_glyph_data[i];
-                fast_glyph_data[i] = 0;
+                fast_glyph_data[i] = nullptr;
             }
         }
         fast_glyph_count = 0;
@@ -2031,7 +2031,7 @@ void QFontEngineFT::QGlyphSet::removeGlyphFromCache(glyph_t index, QFixed subPix
     if (useFastGlyphData(index, subPixelPosition)) {
         if (fast_glyph_data[index]) {
             delete fast_glyph_data[index];
-            fast_glyph_data[index] = 0;
+            fast_glyph_data[index] = nullptr;
             if (fast_glyph_count > 0)
                 --fast_glyph_count;
         }
@@ -2056,7 +2056,7 @@ int QFontEngineFT::getPointInOutline(glyph_t glyph, int flags, quint32 point, QF
     lockFace();
     bool hsubpixel = true;
     int vfactor = 1;
-    int load_flags = loadFlags(0, Format_A8, flags, hsubpixel, vfactor);
+    int load_flags = loadFlags(nullptr, Format_A8, flags, hsubpixel, vfactor);
     int result = freetype->getPointInOutline(glyph, load_flags, point, xpos, ypos, nPoints);
     unlockFace();
     return result;
@@ -2091,7 +2091,7 @@ QFontEngine *QFontEngineFT::cloneWithSize(qreal pixelSize) const
     QFontEngineFT *fe = new QFontEngineFT(fontDef);
     if (!fe->initFromFontEngine(this)) {
         delete fe;
-        return 0;
+        return nullptr;
     } else {
         return fe;
     }
diff --git a/src/platformsupport/glxconvenience/qglxconvenience.cpp b/src/platformsupport/glxconvenience/qglxconvenience.cpp
index 81bccb1c25..5387214e8c 100644
--- a/src/platformsupport/glxconvenience/qglxconvenience.cpp
+++ b/src/platformsupport/glxconvenience/qglxconvenience.cpp
@@ -193,7 +193,7 @@ GLXFBConfig qglx_findConfig(Display *display, int screen , QSurfaceFormat format
 {
     QXcbSoftwareOpenGLEnforcer softwareOpenGLEnforcer;
 
-    GLXFBConfig config = 0;
+    GLXFBConfig config = nullptr;
 
     do {
         const QVector<int> spec = qglx_buildSpec(format, drawableBit, flags);
@@ -273,7 +273,7 @@ XVisualInfo *qglx_findVisualInfo(Display *display, int screen, QSurfaceFormat *f
 {
     Q_ASSERT(format);
 
-    XVisualInfo *visualInfo = 0;
+    XVisualInfo *visualInfo = nullptr;
 
     GLXFBConfig config = qglx_findConfig(display, screen, *format, false, drawableBit, flags);
     if (config)
diff --git a/src/platformsupport/input/integrityhid/qintegrityhidmanager.h b/src/platformsupport/input/integrityhid/qintegrityhidmanager.h
index 36d7587457..fde5fd7dbb 100644
--- a/src/platformsupport/input/integrityhid/qintegrityhidmanager.h
+++ b/src/platformsupport/input/integrityhid/qintegrityhidmanager.h
@@ -52,7 +52,7 @@ class QIntegrityHIDManager : public QThread
 {
     Q_OBJECT
 public:
-    QIntegrityHIDManager(const QString &key, const QString &specification, QObject *parent = 0);
+    QIntegrityHIDManager(const QString &key, const QString &specification, QObject *parent = nullptr);
     ~QIntegrityHIDManager();
 
     void run(void);