backends/wayland: Use #pragma once

src/backends/wayland/egl_wayland_backend.h

@@ -7,8 +7,8 @@
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
-#ifndef KWIN_EGL_WAYLAND_BACKEND_H
-#define KWIN_EGL_WAYLAND_BACKEND_H
+#pragma once
+
 #include "abstract_egl_backend.h"
 #include "outputlayer.h"
 #include "utils/damagejournal.h"
@@ -116,7 +116,5 @@ private:
     friend class EglWaylandTexture;
 };
 
-}
-}
-
-#endif
+} // namespace Wayland
+} // namespace KWin

src/backends/wayland/logging.h

@@ -6,10 +6,9 @@
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
-#ifndef KWIN_WAYLAND_LOGGING_H
-#define KWIN_WAYLAND_LOGGING_H
+#pragma once
+
 #include <QDebug>
 #include <QLoggingCategory>
 
 Q_DECLARE_LOGGING_CATEGORY(KWIN_WAYLAND_BACKEND)
-#endif

src/backends/wayland/scene_qpainter_wayland_backend.h

@@ -7,8 +7,7 @@
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
-#ifndef KWIN_SCENE_QPAINTER_WAYLAND_BACKEND_H
-#define KWIN_SCENE_QPAINTER_WAYLAND_BACKEND_H
+#pragma once
 
 #include "outputlayer.h"
 #include "qpainterbackend.h"
@@ -96,7 +95,5 @@ private:
     QMap<Output *, std::shared_ptr<WaylandQPainterOutput>> m_outputs;
 };
 
-}
-}
-
-#endif
+} // namespace Wayland
+} // namespace KWin

src/backends/wayland/wayland_backend.h

@@ -7,8 +7,8 @@
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
-#ifndef KWIN_WAYLAND_BACKEND_H
-#define KWIN_WAYLAND_BACKEND_H
+#pragma once
+
 #include <config-kwin.h>
 // KWin
 #include "inputbackend.h"
@@ -387,5 +387,3 @@ inline KWayland::Client::ShmPool *WaylandBackend::shmPool()
 
 } // namespace Wayland
 } // namespace KWin
-
-#endif //  KWIN_WAYLAND_BACKEND_H

src/backends/wayland/wayland_output.h

@@ -6,8 +6,7 @@
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
-#ifndef KWIN_WAYLAND_OUTPUT_H
-#define KWIN_WAYLAND_OUTPUT_H
+#pragma once
 
 #include "output.h"
 
@@ -112,7 +111,5 @@ private:
     bool m_hasBeenConfigured = false;
 };
 
-}
-}
-
-#endif
+} // namespace Wayland
+} // namespace KWin