-void draw_arrays(PrimitiveType, int, sizei);
-void draw_elements(PrimitiveType, sizei, DataType, const void *);
-void draw_range_elements(PrimitiveType, uint, uint, sizei, DataType, const void *);
+void draw_arrays(PrimitiveType, int, unsigned);
+void draw_elements(PrimitiveType, unsigned, DataType, const void *);
+void draw_range_elements(PrimitiveType, unsigned, unsigned, unsigned, DataType, const void *);