+ STATIC_ASSERT(V4F_DATA == offsetof(GLvector4f, data));
+ STATIC_ASSERT(V4F_START == offsetof(GLvector4f, start));
+ STATIC_ASSERT(V4F_COUNT == offsetof(GLvector4f, count));
+ STATIC_ASSERT(V4F_STRIDE == offsetof(GLvector4f, stride));
+ STATIC_ASSERT(V4F_SIZE == offsetof(GLvector4f, size));
+ STATIC_ASSERT(V4F_FLAGS == offsetof(GLvector4f, flags));
+