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-rw-r--r--sysdeps/generic/strspn.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/sysdeps/generic/strspn.c b/sysdeps/generic/strspn.c
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+++ b/sysdeps/generic/strspn.c
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+/* Copyright (C) 1991, 1997, 2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <string.h>
+
+#undef strspn
+
+/* Return the length of the maximum initial segment
+ of S which contains only characters in ACCEPT. */
+size_t
+strspn (s, accept)
+ const char *s;
+ const char *accept;
+{
+ const char *p;
+ const char *a;
+ size_t count = 0;
+
+ for (p = s; *p != '\0'; ++p)
+ {
+ for (a = accept; *a != '\0'; ++a)
+ if (*p == *a)
+ break;
+ if (*a == '\0')
+ return count;
+ else
+ ++count;
+ }
+
+ return count;
+}
+libc_hidden_builtin_def (strspn)