wcsmbs/mbrlen.c

   1 /* Copyright (C) 1996-2022 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <wchar.h>
  19
  20 /* The mbrlen function has an internal shift state which gets used if
  21    the PS parameter is NULL.  */
  22 static mbstate_t internal;
  23
  24
  25 size_t
  26 __mbrlen (const char *s, size_t n, mbstate_t *ps)
  27 {
  28   return __mbrtowc (NULL, s, n, ps ?: &internal);
  29 }
  30 libc_hidden_def (__mbrlen)
  31 weak_alias (__mbrlen, mbrlen)