xref: /titanic_51/usr/src/lib/libast/common/vec/vecfree.c (revision 80feccabd0bc0fca1df2b60bfa50449d9a6e3e09)
1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
5 *                      and is licensed under the                       *
6 *                  Common Public License, Version 1.0                  *
7 *                      by AT&T Knowledge Ventures                      *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12 *                                                                      *
13 *              Information and Software Systems Research               *
14 *                            AT&T Research                             *
15 *                           Florham Park NJ                            *
16 *                                                                      *
17 *                 Glenn Fowler <gsf@research.att.com>                  *
18 *                  David Korn <dgk@research.att.com>                   *
19 *                   Phong Vo <kpv@research.att.com>                    *
20 *                                                                      *
21 ***********************************************************************/
22 #pragma prototyped
23 /*
24  * Glenn Fowler
25  * AT&T Bell Laboratories
26  *
27  * file to string vector support
28  */
29 
30 #include <ast.h>
31 #include <vecargs.h>
32 
33 /*
34  * free a string vector generated by vecload()
35  *
36  * retain!=0 frees the string pointers but retains the string data
37  * in this case the data is permanently allocated
38  */
39 
40 void
41 vecfree(register char** vec, int retain)
42 {
43 	if (vec)
44 	{
45 		if (*(vec -= 2) && !retain) free(*vec);
46 		free(vec);
47 	}
48 }
49