diff options
Diffstat (limited to 'sysdeps/generic/strcspn.c')
-rw-r--r-- | sysdeps/generic/strcspn.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/generic/strcspn.c b/sysdeps/generic/strcspn.c new file mode 100644 index 0000000..f359d57 --- /dev/null +++ b/sysdeps/generic/strcspn.c @@ -0,0 +1,51 @@ +/* Copyright (C) 1991, 1994, 1996, 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. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#if defined _LIBC || HAVE_STRING_H +# include <string.h> +#else +# include <strings.h> +# ifndef strchr +# define strchr index +# endif +#endif + +#undef strcspn + +/* Return the length of the maximum initial segment of S + which contains no characters from REJECT. */ +size_t +strcspn (s, reject) + const char *s; + const char *reject; +{ + size_t count = 0; + + while (*s != '\0') + if (strchr (reject, *s++) == NULL) + ++count; + else + return count; + + return count; +} +libc_hidden_builtin_def (strcspn) |