1*b30d1939SAndy Fiddaman /*********************************************************************** 2*b30d1939SAndy Fiddaman * * 3*b30d1939SAndy Fiddaman * This software is part of the ast package * 4*b30d1939SAndy Fiddaman * Copyright (c) 1985-2011 AT&T Intellectual Property * 5*b30d1939SAndy Fiddaman * and is licensed under the * 6*b30d1939SAndy Fiddaman * Eclipse Public License, Version 1.0 * 7*b30d1939SAndy Fiddaman * by AT&T Intellectual Property * 8*b30d1939SAndy Fiddaman * * 9*b30d1939SAndy Fiddaman * A copy of the License is available at * 10*b30d1939SAndy Fiddaman * http://www.eclipse.org/org/documents/epl-v10.html * 11*b30d1939SAndy Fiddaman * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12*b30d1939SAndy Fiddaman * * 13*b30d1939SAndy Fiddaman * Information and Software Systems Research * 14*b30d1939SAndy Fiddaman * AT&T Research * 15*b30d1939SAndy Fiddaman * Florham Park NJ * 16*b30d1939SAndy Fiddaman * * 17*b30d1939SAndy Fiddaman * Glenn Fowler <gsf@research.att.com> * 18*b30d1939SAndy Fiddaman * David Korn <dgk@research.att.com> * 19*b30d1939SAndy Fiddaman * Phong Vo <kpv@research.att.com> * 20*b30d1939SAndy Fiddaman * * 21*b30d1939SAndy Fiddaman ***********************************************************************/ 22*b30d1939SAndy Fiddaman #pragma prototyped 23*b30d1939SAndy Fiddaman /* 24*b30d1939SAndy Fiddaman * struniq - uniq a sorted argv 25*b30d1939SAndy Fiddaman * 0 sentinel is neither expected nor restored 26*b30d1939SAndy Fiddaman * 27*b30d1939SAndy Fiddaman * Glenn Fowler 28*b30d1939SAndy Fiddaman * David Korn 29*b30d1939SAndy Fiddaman * AT&T Research 30*b30d1939SAndy Fiddaman */ 31*b30d1939SAndy Fiddaman 32*b30d1939SAndy Fiddaman #include <ast.h> 33*b30d1939SAndy Fiddaman 34*b30d1939SAndy Fiddaman int struniq(char ** argv,int n)35*b30d1939SAndy Fiddamanstruniq(char** argv, int n) 36*b30d1939SAndy Fiddaman { 37*b30d1939SAndy Fiddaman register char** ao; 38*b30d1939SAndy Fiddaman register char** an; 39*b30d1939SAndy Fiddaman register char** ae; 40*b30d1939SAndy Fiddaman 41*b30d1939SAndy Fiddaman ao = an = argv; 42*b30d1939SAndy Fiddaman ae = ao + n; 43*b30d1939SAndy Fiddaman while (++an < ae) 44*b30d1939SAndy Fiddaman { 45*b30d1939SAndy Fiddaman while (streq(*ao, *an)) 46*b30d1939SAndy Fiddaman if (++an >= ae) 47*b30d1939SAndy Fiddaman return ao - argv + 1; 48*b30d1939SAndy Fiddaman *++ao = *an; 49*b30d1939SAndy Fiddaman } 50*b30d1939SAndy Fiddaman return ao - argv + 1; 51*b30d1939SAndy Fiddaman } 52