def.gen.h

早期freebsd实现

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* def.gen.h version 1.0.1: added ONCE flag */

struct gen {
	struct gen *ngen;
	xchar gx,gy;
	unsigned gflag;		/* 037: trap type; 040: SEEN flag */
				/* 0100: ONCE only */
#define	TRAPTYPE	037
#define	SEEN	040
#define	ONCE	0100
};
extern struct gen *fgold, *ftrap;
struct gen *g_at();
#define newgen()	(struct gen *) alloc(sizeof(struct gen))