49 #define expr_list_for_each_sym(l, e, s) \  argument
50 	for (e = (l); e && (s = e->right.sym); e = e->left.expr)
207 void expr_free(struct expr *e);
209 tristate expr_calc_value(struct expr *e);
210 struct expr *expr_trans_bool(struct expr *e);
211 struct expr *expr_eliminate_dups(struct expr *e);
212 struct expr *expr_transform(struct expr *e);
215 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
218 void expr_fprint(struct expr *e, FILE *out);
220 void expr_gstr_print(struct expr *e, struct gstr *gs);
222 static inline int expr_is_yes(struct expr *e)  in expr_is_yes()  argument
224 	return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);  in expr_is_yes()
227 static inline int expr_is_no(struct expr *e)  in expr_is_no()  argument
229 	return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);  in expr_is_no()