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--- Libc/Libc-1725.40.4/string/FreeBSD/strspn.c
+++ Libc/Libc-320/string/FreeBSD/strspn.c
@@ -1,6 +1,6 @@
-/*-
- * Copyright (c) 2005 David Schultz <das@FreeBSD.ORG>
- * All rights reserved.
+/*
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -10,11 +10,18 @@
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
*
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
@@ -24,48 +31,32 @@
* SUCH DAMAGE.
*/
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)strspn.c 8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/string/strspn.c,v 1.5 2005/04/02 18:52:44 das Exp $");
+__FBSDID("$FreeBSD: src/lib/libc/string/strspn.c,v 1.4 2002/03/21 18:44:54 obrien Exp $");
-#include <sys/types.h>
-#include <limits.h>
#include <string.h>
-#define IDX(c) ((u_char)(c) / LONG_BIT)
-#define BIT(c) ((u_long)1 << ((u_char)(c) % LONG_BIT))
+/*
+ * Span the string s2 (skip characters that are in s2).
+ */
+size_t
+strspn(s1, s2)
+ const char *s1;
+ const char *s2;
+{
+ const char *p = s1, *spanp;
+ char c, sc;
-size_t
-strspn(const char *s, const char *charset)
-{
/*
- * NB: idx and bit are temporaries whose use causes gcc 3.4.2 to
- * generate better code. Without them, gcc gets a little confused.
+ * Skip any characters in s2, excluding the terminating \0.
*/
- const char *s1;
- u_long bit;
- u_long tbl[(UCHAR_MAX + 1) / LONG_BIT];
- int idx;
-
- if(*s == '\0')
- return (0);
-
-#if LONG_BIT == 64 /* always better to unroll on 64-bit architectures */
- tbl[3] = tbl[2] = tbl[1] = tbl[0] = 0;
-#else
- for (idx = 0; idx < sizeof(tbl) / sizeof(tbl[0]); idx++)
- tbl[idx] = 0;
-#endif
- for (; *charset != '\0'; charset++) {
- idx = IDX(*charset);
- bit = BIT(*charset);
- tbl[idx] |= bit;
- }
-
- for(s1 = s; ; s1++) {
- idx = IDX(*s1);
- bit = BIT(*s1);
- if ((tbl[idx] & bit) == 0)
- break;
- }
- return (s1 - s);
+cont:
+ c = *p++;
+ for (spanp = s2; (sc = *spanp++) != 0;)
+ if (sc == c)
+ goto cont;
+ return (p - 1 - s1);
}