newlib/libc/stdlib/mbrlen.c

   1 #include <reent.h>
   2 #include <newlib.h>
   3 #include <wchar.h>
   4 #include <stdlib.h>
   5 #include <stdio.h>
   6 #include <errno.h>
   7
   8 #ifdef _REENT_THREAD_LOCAL
   9 _Thread_local _mbstate_t _tls_mbrlen_state;
  10 #endif
  11
  12 size_t
  13 mbrlen(const char *__restrict s, size_t n, mbstate_t *__restrict ps)
  14 {
  15 #ifdef _MB_CAPABLE
  16   if (ps == NULL)
  17     {
  18       struct _reent *reent = _REENT;
  19
  20       _REENT_CHECK_MISC(reent);
  21       ps = &(_REENT_MBRLEN_STATE(reent));
  22     }
  23 #endif
  24
  25   return mbrtowc(NULL, s, n, ps);
  26 }