Fix warnings building with --std=c++11 and gcc 8

Silence warnings about signed constants being shifted out of int range.

Change-Id: I5dc397de71f4de09e54ce3cbc0f8e3a1cf977b03
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

3 files changed, 5 insertions, 5 deletions

diff --git a/src/corelib/io/qdebug.h b/src/corelib/io/qdebug.h
index ae1869f89e..9d1ce51da5 100644
--- a/src/corelib/io/qdebug.h
+++ b/src/corelib/io/qdebug.h
@@ -96,7 +96,7 @@ class Q_CORE_EXPORT QDebug
         void setVerbosity(int v)
         {
             if (context.version > 1) {
-                flags &= ~(VerbosityMask << VerbosityShift);
+                flags &= ~(uint(VerbosityMask) << VerbosityShift);
                 flags |= (v & VerbosityMask) << VerbosityShift;
             }
         }
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index a5556ccee3..ba4a1dcaa1 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -157,7 +157,7 @@ class QGLDefaultOverlayFormat: public QGLFormat
 public:
     inline QGLDefaultOverlayFormat()
     {
-        setOption(QGL::FormatOption(0xffff << 16)); // turn off all options
+        setOption(QGL::FormatOption(0xffffU << 16)); // turn off all options
         setOption(QGL::DirectRendering);
         setPlane(1);
     }
diff --git a/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp b/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
index 7b4f6aa107..04a5026395 100644
--- a/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
+++ b/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
@@ -591,7 +591,7 @@ static void convertRGBToARGB_helper(const uchar *src, uint *dst, int width, int
             uchar green = src[x + 1];
             uchar blue = src[x + 1 + offs];
             LcdFilter::filterPixel(red, green, blue);
-            *dd++ = (0xFF << 24) | (red << 16) | (green << 8) | blue;
+            *dd++ = (0xFFU << 24) | (red << 16) | (green << 8) | blue;
         }
         dst += width;
         src += src_pitch;
@@ -616,7 +616,7 @@ static void convertRGBToARGB_V_helper(const uchar *src, uint *dst, int width, in
             uchar green = src[x + src_pitch];
             uchar blue = src[x + src_pitch + offs];
             LcdFilter::filterPixel(red, green, blue);
-            *dst++ = (0XFF << 24) | (red << 16) | (green << 8) | blue;
+            *dst++ = (0XFFU << 24) | (red << 16) | (green << 8) | blue;
         }
         src += 3*src_pitch;
     }
@@ -637,7 +637,7 @@ static inline void convertGRAYToARGB(const uchar *src, uint *dst, int width, int
         const uchar * const e = p + width;
         while (p < e) {
             uchar gray = *p++;
-            *dst++ = (0xFF << 24) | (gray << 16) | (gray << 8) | gray;
+            *dst++ = (0xFFU << 24) | (gray << 16) | (gray << 8) | gray;
         }
         src += src_pitch;
     }