/* Copyright (C) 1995, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu> The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <wchar.h> /* Return the length of the maximum initial segment of WCS which contains only wide-characters in ACCEPT. */ size_t wcsspn (wcs, accept) const wchar_t *wcs; const wchar_t *accept; { register const wchar_t *p; register const wchar_t *a; register size_t count = 0; for (p = wcs; *p != L'\0'; ++p) { for (a = accept; *a != L'\0'; ++a) if (*p == *a) break; if (*a == L'\0') return count; else ++count; } return count; }