kc3-lang/gnulib/lib/malloc/dynarray_resize_clear.c

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• Hash : 7b089321
  Author :
  Date : 2025-01-01T09:24:36
  

  maint: run 'make update-copyright'
  

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• lib/malloc/dynarray_resize_clear.c

• /* Increase the size of a dynamic array and clear the new part.
     Copyright (C) 2017-2025 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
  
     The GNU C Library 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.
  
     The GNU C Library 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 the GNU C Library; if not, see
     <https://www.gnu.org/licenses/>.  */
  
  #ifndef _LIBC
  # include <libc-config.h>
  #endif
  
  #include <dynarray.h>
  #include <string.h>
  
  bool
  __libc_dynarray_resize_clear (struct dynarray_header *list, size_t size,
                                void *scratch, size_t element_size)
  {
    size_t old_size = list->used;
    if (!__libc_dynarray_resize (list, size, scratch, element_size))
      return false;
    /* __libc_dynarray_resize already checked for overflow.  */
    char *array = list->array;
    memset (array + (old_size * element_size), 0,
            (size - old_size) * element_size);
    return true;
  }
  libc_hidden_def (__libc_dynarray_resize_clear)
  

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