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      1 /* Convert string to wide string.
      2    Copyright (C) 2008-2022 Free Software Foundation, Inc.
      3    Written by Bruno Haible <bruno (at) clisp.org>, 2008.
      4 
      5    This file is free software: you can redistribute it and/or modify
      6    it under the terms of the GNU Lesser General Public License as
      7    published by the Free Software Foundation; either version 2.1 of the
      8    License, or (at your option) any later version.
      9 
     10    This file is distributed in the hope that it will be useful,
     11    but WITHOUT ANY WARRANTY; without even the implied warranty of
     12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13    GNU Lesser General Public License for more details.
     14 
     15    You should have received a copy of the GNU Lesser General Public License
     16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
     17 
     18 #include <config.h>
     19 
     20 #include <wchar.h>
     21 
     22 /* Internal state used by the functions mbsrtowcs() and mbsnrtowcs().  */
     23 mbstate_t _gl_mbsrtowcs_state
     24 /* The state must initially be in the "initial state"; so, zero-initialize it.
     25    On most systems, putting it into BSS is sufficient.  Not so on Mac OS X 10.3,
     26    see <https://lists.gnu.org/r/bug-gnulib/2009-01/msg00329.html>.
     27    When it needs an initializer, use 0 or {0} as initializer? 0 only works
     28    when mbstate_t is a scalar type (such as when gnulib defines it, or on
     29    AIX, IRIX, mingw). {0} works as an initializer in all cases: for a struct
     30    or union type, but also for a scalar type (ISO C 99, 6.7.8.(11)).  */
     31 #if defined __ELF__
     32   /* On ELF systems, variables in BSS behave well.  */
     33 #else
     34   /* Use braces, to be on the safe side.  */
     35   = { 0 }
     36 #endif
     37   ;
     38