kc3-lang/gnulib/lib/xstring-buffer.c

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• Hash : dd6b4208
  Author :
  Date : 2025-05-11T02:55:11
  

  string-desc: Fixes for string literals and older GCC versions.
  
  * lib/string-desc.h (HAVE__GENERIC, HAVE_BUILTIN_CHOOSE_EXPR,
  HAVE_BUILTIN_CONSTANT_P, HAVE_RW_STRING_DESC): New macros.
  Use HAVE_RW_STRING_DESC instead of HAVE_STATEMENT_EXPRESSIONS
  everywhere.
  (sd_new_addr): Use __builtin_choose_expr to deal with string literals.
  * lib/xstring-desc.h: Use HAVE_RW_STRING_DESC instead of
  HAVE_STATEMENT_EXPRESSIONS.
  * lib/string-buffer.c (sb_dupfree): Construct an empty writable string
  without a cast.
  * lib/xstring-buffer.c (sb_xdupfree): Likewise.
  * lib/string-buffer-reversed.c (sbr_dupfree): Likewise.
  * lib/xstring-buffer-reversed.c (sbr_xdupfree): Likewise.
  

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• lib/xstring-buffer.c

• /* Error-checking functions on a string buffer.
     Copyright (C) 2024-2025 Free Software Foundation, Inc.
  
     This file 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 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 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>, 2024.  */
  
  #include <config.h>
  
  /* Specification.  */
  #include "string-buffer.h"
  
  #include "xalloc.h"
  
  void
  sb_xappend1 (struct string_buffer *buffer, char c)
  {
    if (sb_append1 (buffer, c) < 0)
      xalloc_die ();
  }
  
  void
  sb_xappend_desc (struct string_buffer *buffer, string_desc_t s)
  {
    if (sb_append_desc (buffer, s) < 0)
      xalloc_die ();
  }
  
  void
  sb_xappend_c (struct string_buffer *buffer, const char *str)
  {
    if (sb_append_c (buffer, str) < 0)
      xalloc_die ();
  }
  
  const char *
  sb_xcontents_c (struct string_buffer *buffer)
  {
    const char *contents = sb_contents_c (buffer);
    if (contents == NULL)
      xalloc_die ();
    return contents;
  }
  
  rw_string_desc_t
  sb_xdupfree (struct string_buffer *buffer)
  {
    if (buffer->error)
      {
        sb_free (buffer);
        return sd_readwrite (sd_new_empty ());
      }
    rw_string_desc_t contents = sb_dupfree (buffer);
    if (sd_data (contents) == NULL)
      xalloc_die ();
    return contents;
  }
  
  char *
  sb_xdupfree_c (struct string_buffer *buffer)
  {
    if (buffer->error)
      {
        sb_free (buffer);
        return NULL;
      }
    char *contents = sb_dupfree_c (buffer);
    if (contents == NULL)
      xalloc_die ();
    return contents;
  }
  

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