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-rw-r--r--string/strspn.c76
1 files changed, 0 insertions, 76 deletions
diff --git a/string/strspn.c b/string/strspn.c
deleted file mode 100644
index c63197cdf0..0000000000
--- a/string/strspn.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <string.h>
-#include <stdint.h>
-#include <libc-pointer-arith.h>
-
-#undef strspn
-#ifndef STRSPN
-# define STRSPN strspn
-#endif
-
-/* Return the length of the maximum initial segment
- of S which contains only characters in ACCEPT. */
-size_t
-STRSPN (const char *str, const char *accept)
-{
- if (accept[0] == '\0')
- return 0;
- if (__glibc_unlikely (accept[1] == '\0'))
- {
- const char *a = str;
- for (; *str == *accept; str++);
- return str - a;
- }
-
- /* Use multiple small memsets to enable inlining on most targets. */
- unsigned char table[256];
- unsigned char *p = memset (table, 0, 64);
- memset (p + 64, 0, 64);
- memset (p + 128, 0, 64);
- memset (p + 192, 0, 64);
-
- unsigned char *s = (unsigned char*) accept;
- /* Different from strcspn it does not add the NULL on the table
- so can avoid check if str[i] is NULL, since table['\0'] will
- be 0 and thus stopping the loop check. */
- do
- p[*s++] = 1;
- while (*s);
-
- s = (unsigned char*) str;
- if (!p[s[0]]) return 0;
- if (!p[s[1]]) return 1;
- if (!p[s[2]]) return 2;
- if (!p[s[3]]) return 3;
-
- s = (unsigned char *) PTR_ALIGN_DOWN (s, 4);
-
- unsigned int c0, c1, c2, c3;
- do {
- s += 4;
- c0 = p[s[0]];
- c1 = p[s[1]];
- c2 = p[s[2]];
- c3 = p[s[3]];
- } while ((c0 & c1 & c2 & c3) != 0);
-
- size_t count = s - (unsigned char *) str;
- return (c0 & c1) == 0 ? count + c0 : count + c2 + 2;
-}
-libc_hidden_builtin_def (strspn)