1/*********************************************************************** 2* * 3* This software is part of the ast package * 4* Copyright (c) 1985-2010 AT&T Intellectual Property * 5* and is licensed under the * 6* Common Public License, Version 1.0 * 7* by AT&T Intellectual Property * 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#include <ast.h> 25 26#if _lib_strcasecmp 27 28NoN(strcasecmp) 29 30#else 31 32#include <ctype.h> 33 34#undef strcasecmp 35 36int 37strcasecmp(register const char* a, register const char* b) 38{ 39 register int ac; 40 register int bc; 41 register int d; 42 43 for (;;) 44 { 45 ac = *a++; 46 if (isupper(ac)) 47 ac = tolower(ac); 48 bc = *b++; 49 if (isupper(bc)) 50 bc = tolower(bc); 51 if (d = ac - bc) 52 return d; 53 if (!ac) 54 return 0; 55 } 56} 57 58#endif 59