typedef struct {
Xgl_usgn32num_circles;/∗ number of circles ∗/
Xgl_multicircle_typetype;/∗ data type of multicircle ∗/
Xgl_bbox∗bbox;/∗ optional box contain. all circles ∗/
union {/∗ union of pointers to circles ∗/
Xgl_circle_i2d∗i2d;
Xgl_circle_f2d∗f2d;
Xgl_circle_d2d∗d2d;
Xgl_circle_f3d∗f3d;
Xgl_circle_af3d∗af3d;
Xgl_circle_d3d∗d3d;
Xgl_circle_ad3d∗ad3d;
} circles;
} Xgl_circle_list;

SunOS