ocg
((struct ocg *)cg)->cg_magic : cg->cg_magic,
struct ocg *ocgp;
ocgp = (struct ocg *)&h->acg;
? (((struct ocg *)(cgp))->cg_btot) \
? (((struct ocg *)(cgp))->cg_b[cylno]) \
? (((struct ocg *)(cgp))->cg_iused) \
? (((struct ocg *)(cgp))->cg_free) \
((cgp)->cg_magic == CG_MAGIC || ((struct ocg *)(cgp))->cg_magic == CG_MAGIC)
? (((struct ocg *)(cgp))->cg_btot) \
? (((struct ocg *)(cgp))->cg_b[cylno]) \
? (((struct ocg *)(cgp))->cg_b[cylno]) \
? (((struct ocg *)(cgp))->cg_iused) \
? (((struct ocg *)(cgp))->cg_free) \
((struct ocg *)(cgp))->cg_magic == CG_MAGIC)