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1.1 root 1: /*
2: * Copyright (c) 1983 Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * Edward Wang at The University of California, Berkeley.
7: *
8: * Redistribution and use in source and binary forms are permitted provided
9: * that: (1) source distributions retain this entire copyright notice and
10: * comment, and (2) distributions including binaries display the following
11: * acknowledgement: ``This product includes software developed by the
12: * University of California, Berkeley and its contributors'' in the
13: * documentation or other materials provided with the distribution and in
14: * all advertising materials mentioning features or use of this software.
15: * Neither the name of the University nor the names of its contributors may
16: * be used to endorse or promote products derived from this software without
17: * specific prior written permission.
18: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21: *
22: * @(#)var.h 3.11 (Berkeley) 6/6/90
23: */
24:
25: struct var {
26: struct var *r_left;
27: struct var *r_right;
28: char *r_name;
29: struct value r_val;
30: };
31:
32: struct var *var_set1();
33: struct var *var_setstr1();
34: struct var *var_setnum1();
35: struct var **var_lookup1();
36:
37: #define var_set(n, v) var_set1(&var_head, n, v)
38: #define var_setstr(n, s) var_setstr1(&var_head, n, s)
39: #define var_setnum(n, i) var_setnum1(&var_head, n, i)
40: #define var_unset(n) var_unset1(&var_head, n)
41: #define var_lookup(n) (*var_lookup1(&var_head, n))
42: #define var_walk(f, a) var_walk1(var_head, f, a)
43:
44: struct var *var_head; /* secret, shhh */
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