Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtksh/ksh93/src/lib/libast/comp/memchr.c

@@ -0,0 +1,95 @@
+/* $XConsortium: memchr.c /main/3 1995/11/01 17:13:36 rswiston $ */
+/***************************************************************
+*                                                              *
+*                      AT&T - PROPRIETARY                      *
+*                                                              *
+*         THIS IS PROPRIETARY SOURCE CODE LICENSED BY          *
+*                          AT&T CORP.                          *
+*                                                              *
+*                Copyright (c) 1995 AT&T Corp.                 *
+*                     All Rights Reserved                      *
+*                                                              *
+*           This software is licensed by AT&T Corp.            *
+*       under the terms and conditions of the license in       *
+*       http://www.research.att.com/orgs/ssr/book/reuse        *
+*                                                              *
+*               This software was created by the               *
+*           Software Engineering Research Department           *
+*                    AT&T Bell Laboratories                    *
+*                                                              *
+*               For further information contact                *
+*                     gsf@research.att.com                     *
+*                                                              *
+***************************************************************/
+
+/* : : generated by proto : : */
+
+#if !defined(__PROTO__)
+#if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
+#if defined(__cplusplus)
+#define __MANGLE__	"C"
+#else
+#define __MANGLE__
+#endif
+#define __STDARG__
+#define __PROTO__(x)	x
+#define __OTORP__(x)
+#define __PARAM__(n,o)	n
+#if !defined(__STDC__) && !defined(__cplusplus)
+#if !defined(c_plusplus)
+#define const
+#endif
+#define signed
+#define void		int
+#define volatile
+#define __V_		char
+#else
+#define __V_		void
+#endif
+#else
+#define __PROTO__(x)	()
+#define __OTORP__(x)	x
+#define __PARAM__(n,o)	o
+#define __MANGLE__
+#define __V_		char
+#define const
+#define signed
+#define void		int
+#define volatile
+#endif
+#if defined(__cplusplus) || defined(c_plusplus)
+#define __VARARG__	...
+#else
+#define __VARARG__
+#endif
+#if defined(__STDARG__)
+#define __VA_START__(p,a)	va_start(p,a)
+#else
+#define __VA_START__(p,a)	va_start(p)
+#endif
+#endif
+#include <ast.h>
+
+#ifdef _lib_memchr
+
+NoN(memchr)
+
+#else
+
+/*
+ * Return the ptr in sp at which the character c appears;
+ * 0 if not found in n chars; don't stop at \0.
+ */
+
+__V_*
+memchr __PARAM__((const __V_* asp, register int c, size_t n), (asp, c, n)) __OTORP__(const __V_* asp; register int c; size_t n;){
+	register const char*	sp = (char*)asp;
+	register const char*	ep = sp + n;
+
+	while (sp < ep)
+		if (*sp++ == c)
+			return(--sp);
+	return(0);
+}
+
+#endif