1/*********************************************************************** 2* * 3* This software is part of the ast package * 4* Copyright (c) 1985-2011 AT&T Intellectual Property * 5* and is licensed under the * 6* Eclipse Public License, Version 1.0 * 7* by AT&T Intellectual Property * 8* * 9* A copy of the License is available at * 10* http://www.eclipse.org/org/documents/epl-v10.html * 11* (with md5 checksum b35adb5213ca9657e911e9befb180842) * 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/* 25 * ccmapc(c, CC_NATIVE, CC_ASCII) and strncmp 26 */ 27 28#include <ast.h> 29#include <ccode.h> 30 31#if _lib_strnacmp 32 33NoN(strnacmp) 34 35#else 36 37#include <ctype.h> 38 39int 40strnacmp(const char* a, const char* b, size_t n) 41{ 42#if CC_NATIVE == CC_ASCII 43 return strncmp(a, b, n); 44#else 45 register unsigned char* ua = (unsigned char*)a; 46 register unsigned char* ub = (unsigned char*)b; 47 register unsigned char* ue; 48 register unsigned char* m; 49 register int c; 50 register int d; 51 52 m = ccmap(CC_NATIVE, CC_ASCII); 53 ue = ua + n; 54 while (ua < ue) 55 { 56 c = m[*ua++]; 57 if (d = c - m[*ub++]) 58 return d; 59 if (!c) 60 return 0; 61 } 62 return 0; 63#endif 64} 65 66#endif 67