Similar to previous Vec fixes, fix Color4 UB

Color4 does not derive from Vec4 the way Color3 derives from Vec3, so UB fix needed to avoid incorrect optimization in the presence of undefined behavior. Signed-off-by: Kimball Thurston <[email protected]>
AcademySoftwareFoundation · Nov 3, 2024 · 854c124 · 854c124
1 parent cc0d361
commit 854c124
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/Imath/ImathColor.h b/src/Imath/ImathColor.h
@@ -513,14 +513,14 @@ template <class T>
 IMATH_HOSTDEVICE inline T&
 Color4<T>::operator[] (int i) IMATH_NOEXCEPT
 {
-    return (&r)[i];
+    return reinterpret_cast<T *> (this)[i];
 }
 
 template <class T>
 IMATH_HOSTDEVICE inline const T&
 Color4<T>::operator[] (int i) const IMATH_NOEXCEPT
 {
-    return (&r)[i];
+    return reinterpret_cast<const T *> (this)[i];
 }
 
 template <class T> IMATH_HOSTDEVICE inline Color4<T>::Color4 () IMATH_NOEXCEPT