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string/FreeBSD/strspn.c Libc-1725.40.4 /dev/null
--- Libc/Libc-1725.40.4/string/FreeBSD/strspn.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*-
- * Copyright (c) 2005 David Schultz <das@FreeBSD.ORG>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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
- * 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)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/string/strspn.c,v 1.5 2005/04/02 18:52:44 das 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))
-
-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.
-	 */
-	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);
-}