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>

1 files changed, 6 insertions, 6 deletions

diff --git a/src/plugins/platforms/xcb/qxcbbackingstore.cpp b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
index 741317d766..8f55bc2e96 100644
--- a/src/plugins/platforms/xcb/qxcbbackingstore.cpp
+++ b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
@@ -229,7 +229,7 @@ void QXcbBackingStoreImage::resize(const QSize &size)
                                    m_xcb_format->bits_per_pixel,
                                    0, byteOrder,
                                    XCB_IMAGE_ORDER_MSB_FIRST,
-                                   0, ~0, 0);
+                                   nullptr, ~0, nullptr);
 
     const size_t segmentSize = imageDataSize(m_xcb_image);
 
@@ -412,13 +412,13 @@ bool QXcbBackingStoreImage::createSystemVShmSegment(xcb_connection_t *c, size_t
         return false;
     }
 
-    void *addr = shmat(id, 0, 0);
+    void *addr = shmat(id, nullptr, 0);
     if (addr == (void *)-1) {
         qCWarning(lcQpaXcb, "shmat() failed (%d: %s) for id %d", errno, strerror(errno), id);
         return false;
     }
 
-    if (shmctl(id, IPC_RMID, 0) == -1)
+    if (shmctl(id, IPC_RMID, nullptr) == -1)
         qCWarning(lcQpaXcb, "Error while marking the shared memory segment to be destroyed");
 
     const auto seg = xcb_generate_id(c);
@@ -780,7 +780,7 @@ QXcbBackingStore::~QXcbBackingStore()
 QPaintDevice *QXcbBackingStore::paintDevice()
 {
     if (!m_image)
-        return 0;
+        return nullptr;
     return m_rgbImage.isNull() ? m_image->image() : &m_rgbImage;
 }
 
@@ -1036,7 +1036,7 @@ void QXcbSystemTrayBackingStore::recreateImage(QXcbWindow *win, const QSize &siz
     xcb_create_pixmap(xcb_connection(), 32, m_xrenderPixmap, screen->root(), size.width(), size.height());
 
     m_xrenderPicture = xcb_generate_id(xcb_connection());
-    xcb_render_create_picture(xcb_connection(), m_xrenderPicture, m_xrenderPixmap, m_xrenderPictFormat, 0, 0);
+    xcb_render_create_picture(xcb_connection(), m_xrenderPicture, m_xrenderPixmap, m_xrenderPictFormat, 0, nullptr);
 
     // XRender expects premultiplied alpha
     if (m_image)
@@ -1077,7 +1077,7 @@ void QXcbSystemTrayBackingStore::initXRenderMode()
 
     m_windowPicture = xcb_generate_id(conn);
     xcb_void_cookie_t cookie =
-            xcb_render_create_picture_checked(conn, m_windowPicture, platformWindow->xcb_window(), vfmt->format, 0, 0);
+            xcb_render_create_picture_checked(conn, m_windowPicture, platformWindow->xcb_window(), vfmt->format, 0, nullptr);
     xcb_generic_error_t *error = xcb_request_check(conn, cookie);
     if (error) {
         qWarning("QXcbSystemTrayBackingStore: Failed to create Picture with format %x for window %x, error code %d",