kc3-lang/gnulib/lib/btoc32.c

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• Hash : a6a9a45e
  Author :
  Date : 2023-04-04T12:38:25
  

  *c32*: Inline most functions on glibc and musl libc.
  
  * lib/uchar.in.h: Invoke _GL_INLINE_HEADER_BEGIN, _GL_INLINE_HEADER_END.
  (btoc32): Inline if _GL_WCHAR_T_IS_UCS4.
  (c32isalnum, c32isalpha, c32isblank, c32iscntrl, c32isdigit, c32isgraph,
  c32islower, c32isprint, c32ispunct, c32isspace, c32isupper,
  c32isxdigit): Inline if
  _GL_WCHAR_T_IS_UCS4 && !GNULIB_defined_mbstate_t.
  (c32snrtombs, c32srtombs, c32stombs, c32tob, mbsnrtoc32s, mbsrtoc32s,
  mbstoc32s): Inline if _GL_WCHAR_T_IS_UCS4.
  * lib/btoc32.c: Define compilation unit marker.
  (btoc32): Conditionally mark as _GL_EXTERN_INLINE.
  * lib/c32isalnum.c: Define compilation unit marker.
  * lib/c32isalpha.c: Likewise.
  * lib/c32isblank.c: Likewise.
  * lib/c32iscntrl.c: Likewise.
  * lib/c32isdigit.c: Likewise.
  * lib/c32isgraph.c: Likewise.
  * lib/c32islower.c: Likewise.
  * lib/c32isprint.c: Likewise.
  * lib/c32ispunct.c: Likewise.
  * lib/c32isspace.c: Likewise.
  * lib/c32isupper.c: Likewise.
  * lib/c32isxdigit.c: Likewise.
  * lib/c32is-impl.h (FUNC): Conditionally mark as _GL_EXTERN_INLINE.
  * lib/c32snrtombs.c: Define compilation unit marker.
  (c32snrtombs): Conditionally mark as _GL_EXTERN_INLINE.
  * lib/c32srtombs.c: Define compilation unit marker.
  (c32srtombs): Conditionally mark as _GL_EXTERN_INLINE.
  * lib/c32stombs.c: Define compilation unit marker.
  (c32stombs): Conditionally mark as _GL_EXTERN_INLINE.
  * lib/c32tob.c: Define compilation unit marker.
  (c32tob): Conditionally mark as _GL_EXTERN_INLINE.
  * lib/mbsnrtoc32s.c: Define compilation unit marker.
  (mbsnrtoc32s): Conditionally mark as _GL_EXTERN_INLINE.
  * lib/mbsrtoc32s.c: Define compilation unit marker.
  (mbsrtoc32s): Conditionally mark as _GL_EXTERN_INLINE.
  * lib/mbstoc32s.c: Define compilation unit marker.
  (mbstoc32s): Conditionally mark as _GL_EXTERN_INLINE.
  * modules/uchar (Depends-on): Add extern-inline.
  

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• lib/btoc32.c

• /* Convert unibyte character to 32-bit wide character.
     Copyright (C) 2020-2023 Free Software Foundation, Inc.
  
     This file is free software: you can redistribute it and/or modify
     it under the terms of the GNU Lesser General Public License as
     published by the Free Software Foundation; either version 2.1 of the
     License, or (at your option) any later version.
  
     This file 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 Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser 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>
  
  #define IN_BTOC32
  /* Specification.  */
  #include <uchar.h>
  
  #include <stdio.h>
  #include <string.h>
  
  #if _GL_WCHAR_T_IS_UCS4
  _GL_EXTERN_INLINE
  #endif
  wint_t
  btoc32 (int c)
  {
  #if HAVE_WORKING_MBRTOC32 && !_GL_WCHAR_T_IS_UCS4
    /* The char32_t encoding of a multibyte character may be different than its
       wchar_t encoding.  */
    if (c != EOF)
      {
        mbstate_t state;
        char s[1];
        char32_t wc;
  
        memset (&state, '\0', sizeof (mbstate_t));
        s[0] = (unsigned char) c;
        if (mbrtoc32 (&wc, s, 1, &state) <= 1)
          return wc;
      }
    return WEOF;
  #else
    /* In all known locale encodings, unibyte characters correspond only to
       characters in the BMP.  */
    return btowc (c);
  #endif
  }
  

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