Fix Clang warning about overwriting a vtable

statevariant_p.h:100:20: warning: destination for this 'memcpy' call is a pointer to class containing a dynamic class 'BlendEquationArguments'; vtable pointer will be overwritten [-Wdynamic-class-memaccess]
statevariant_p.h:100:20: note: explicitly cast the pointer to silence this warning

Change-Id: I149e0540c00745fe8119fffd146452409ca5c945
Reviewed-by: Kevin Ottens <kevin.ottens@kdab.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/render/renderstates/statevariant_p.h b/src/render/renderstates/statevariant_p.h
index f2a631d2e..e13599e75 100644
--- a/src/render/renderstates/statevariant_p.h
+++ b/src/render/renderstates/statevariant_p.h
@@ -87,17 +87,17 @@ struct StateVariant
         u_Data()
         {
             // Assumes the above types don't need to have their ctor called
-            memset(this, 0, sizeof(u_Data));
+            memset(static_cast<void *>(this), 0, sizeof(u_Data));
         }
 
         u_Data(const u_Data &other)
         {
-            memcpy(this, &other, sizeof(u_Data));
+            memcpy(static_cast<void *>(this), static_cast<const void *>(&other), sizeof(u_Data));
         }
 
         u_Data& operator=(const u_Data &other)
         {
-            memcpy(this, &other, sizeof(u_Data));
+            memcpy(static_cast<void *>(this), static_cast<const void *>(&other), sizeof(u_Data));
             return *this;
         }
 
@@ -121,7 +121,7 @@ struct StateVariant
 #if !defined(_MSC_VER) || (_MSC_VER > 1800)
         // all union members start at the same memory address
         // so we can just write into whichever we want
-        memcpy(&(v.data), &state, sizeof(state));
+        memcpy(static_cast<void *>(&v.data), static_cast<const void *>(&state), sizeof(state));
 #else
         v.m_impl.reset(new GenericState(state));
 #endif