14887Schin /*********************************************************************** 24887Schin * * 34887Schin * This software is part of the ast package * 4*12068SRoger.Faulkner@Oracle.COM * Copyright (c) 1985-2010 AT&T Intellectual Property * 54887Schin * and is licensed under the * 64887Schin * Common Public License, Version 1.0 * 78462SApril.Chin@Sun.COM * by AT&T Intellectual Property * 84887Schin * * 94887Schin * A copy of the License is available at * 104887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 114887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 124887Schin * * 134887Schin * Information and Software Systems Research * 144887Schin * AT&T Research * 154887Schin * Florham Park NJ * 164887Schin * * 174887Schin * Glenn Fowler <gsf@research.att.com> * 184887Schin * David Korn <dgk@research.att.com> * 194887Schin * Phong Vo <kpv@research.att.com> * 204887Schin * * 214887Schin ***********************************************************************/ 224887Schin #pragma prototyped 234887Schin /* 244887Schin * struniq - uniq a sorted argv 254887Schin * 0 sentinel is neither expected nor restored 264887Schin * 274887Schin * Glenn Fowler 284887Schin * David Korn 294887Schin * AT&T Research 304887Schin */ 314887Schin 324887Schin #include <ast.h> 334887Schin 344887Schin int struniq(char ** argv,int n)354887Schinstruniq(char** argv, int n) 364887Schin { 374887Schin register char** ao; 384887Schin register char** an; 394887Schin register char** ae; 404887Schin 414887Schin ao = an = argv; 424887Schin ae = ao + n; 434887Schin while (++an < ae) 444887Schin { 454887Schin while (streq(*ao, *an)) 464887Schin if (++an >= ae) 474887Schin return ao - argv + 1; 484887Schin *++ao = *an; 494887Schin } 504887Schin return ao - argv + 1; 514887Schin } 52