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 #include <ast.h> 25*b30d1939SAndy Fiddaman 26*b30d1939SAndy Fiddaman #if _lib_memccpy && !_UWIN 27*b30d1939SAndy Fiddaman 28*b30d1939SAndy Fiddaman NoN(memccpy) 29*b30d1939SAndy Fiddaman 30*b30d1939SAndy Fiddaman #else 31*b30d1939SAndy Fiddaman 32*b30d1939SAndy Fiddaman /* 33*b30d1939SAndy Fiddaman * Copy s2 to s1, stopping if character c is copied. Copy no more than n bytes. 34*b30d1939SAndy Fiddaman * Return a pointer to the byte after character c in the copy, 35*b30d1939SAndy Fiddaman * or 0 if c is not found in the first n bytes. 36*b30d1939SAndy Fiddaman */ 37*b30d1939SAndy Fiddaman 38*b30d1939SAndy Fiddaman void* 39*b30d1939SAndy Fiddaman memccpy(void* as1, const void* as2, register int c, size_t n) 40*b30d1939SAndy Fiddaman { 41*b30d1939SAndy Fiddaman register char* s1 = (char*)as1; 42*b30d1939SAndy Fiddaman register const char* s2 = (char*)as2; 43*b30d1939SAndy Fiddaman register const char* ep = s2 + n; 44*b30d1939SAndy Fiddaman 45*b30d1939SAndy Fiddaman while (s2 < ep) 46*b30d1939SAndy Fiddaman if ((*s1++ = *s2++) == c) 47*b30d1939SAndy Fiddaman return(s1); 48*b30d1939SAndy Fiddaman return(0); 49*b30d1939SAndy Fiddaman } 50*b30d1939SAndy Fiddaman 51*b30d1939SAndy Fiddaman #endif 52