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Annotation of 43BSDReno/usr.bin/make/lst.lib/lstClose.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * This code is derived from software contributed to Berkeley by
                      6:  * Adam de Boor.
                      7:  *
                      8:  * Redistribution and use in source and binary forms are permitted
                      9:  * provided that: (1) source distributions retain this entire copyright
                     10:  * notice and comment, and (2) distributions including binaries display
                     11:  * the following acknowledgement:  ``This product includes software
                     12:  * developed by the University of California, Berkeley and its contributors''
                     13:  * in the documentation or other materials provided with the distribution
                     14:  * and in all advertising materials mentioning features or use of this
                     15:  * software. Neither the name of the University nor the names of its
                     16:  * contributors may be used to endorse or promote products derived
                     17:  * from this software without specific prior written permission.
                     18:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     19:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     20:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     21:  */
                     22: 
                     23: #ifndef lint
                     24: static char sccsid[] = "@(#)lstClose.c 5.3 (Berkeley) 6/1/90";
                     25: #endif /* not lint */
                     26: 
                     27: /*-
                     28:  * LstClose.c --
                     29:  *     Close a list for sequential access.
                     30:  *     The sequential functions access the list in a slightly different way.
                     31:  *     CurPtr points to their idea of the current node in the list and they
                     32:  *     access the list based on it. Because the list is circular, Lst_Next
                     33:  *     and Lst_Prev will go around the list forever. Lst_IsAtEnd must be
                     34:  *     used to determine when to stop.
                     35:  */
                     36: 
                     37: #include       "lstInt.h"
                     38: 
                     39: /*-
                     40:  *-----------------------------------------------------------------------
                     41:  * Lst_Close --
                     42:  *     Close a list which was opened for sequential access.
                     43:  *
                     44:  * Results:
                     45:  *     None.
                     46:  *
                     47:  * Side Effects:
                     48:  *     The list is closed.
                     49:  *
                     50:  *-----------------------------------------------------------------------
                     51:  */
                     52: void
                     53: Lst_Close (l)
                     54:     Lst            l;          /* The list to close */
                     55: {
                     56:     register List      list = (List) l;
                     57:     
                     58:     if (LstValid(l) == TRUE) {
                     59:        list->isOpen = FALSE;
                     60:        list->atEnd = Unknown;
                     61:     }
                     62: }
                     63: 

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