kc3-lang/gnulib/lib/c32srtombs.c

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• Hash : ef339871
  Author :
  Date : 2020-01-09T16:20:10
  

  c32srtombs: New module.
  
  * lib/uchar.in.h (c32srtombs): New declaration.
  * lib/wcsrtombs-impl.h: Parameterize: Use macros FUNC, SCHAR_T,
  INTERNAL_STATE, WCRTOMB.
  * lib/wcsrtombs.c (FUNC, SCHAR_T, INTERNAL_STATE, WCRTOMB): New macros.
  * lib/c32srtombs.c: New file.
  * lib/c32srtombs-state.c: New file, based on lib/wcsrtombs-state.c.
  * m4/uchar.m4 (gl_UCHAR_H_DEFAULTS): Initialize GNULIB_C32SRTOMBS.
  * modules/uchar (Makefile.am): Substitute GNULIB_C32SRTOMBS.
  * modules/c32srtombs: New file.
  * tests/test-uchar-c++.cc: Test the signature of c32srtombs.
  * doc/posix-functions/wcsrtombs.texi: Mention the new module.
  

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• lib/c32srtombs.c

• /* Convert 32-bit wide string to string.
     Copyright (C) 2020 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program 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 General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  /* Written by Bruno Haible <bruno@clisp.org>, 2020.  */
  
  #include <config.h>
  
  /* Specification.  */
  #include <uchar.h>
  
  #include <wchar.h>
  
  #if (HAVE_WORKING_MBRTOC32 && !defined __GLIBC__) || _GL_LARGE_CHAR32_T
  /* The char32_t encoding of a multibyte character may be different than its
     wchar_t encoding, or char32_t is wider than wchar_t.  */
  
  # include <errno.h>
  # include <stdlib.h>
  # include <string.h>
  
  extern mbstate_t _gl_c32srtombs_state;
  
  # define FUNC c32srtombs
  # define SCHAR_T char32_t
  # define INTERNAL_STATE _gl_c32srtombs_state
  # define WCRTOMB c32rtomb
  # include "wcsrtombs-impl.h"
  
  #else
  /* char32_t and wchar_t are equivalent.  */
  
  # include "verify.h"
  
  verify (sizeof (char32_t) == sizeof (wchar_t));
  
  size_t
  c32srtombs (char *dest, const char32_t **srcp, size_t len, mbstate_t *ps)
  {
    return wcsrtombs (dest, (const wchar_t **) srcp, len, ps);
  }
  
  #endif
  

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