kc3-lang/gnulib/lib/realloc.c

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• Hash : 57fdfd3f
  Author :
  Date : 2007-10-07T19:14:58
  

  Change copyright notice from GPLv2+ to GPLv3+.
  

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• lib/realloc.c

• /* realloc() function that is glibc compatible.
  
     Copyright (C) 1997, 2003, 2004, 2006, 2007 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 <http://www.gnu.org/licenses/>.  */
  
  /* written by Jim Meyering and Bruno Haible */
  
  #include <config.h>
  /* Only the AC_FUNC_REALLOC macro defines 'realloc' already in config.h.  */
  #ifdef realloc
  # define NEED_REALLOC_GNU
  # undef realloc
  #endif
  
  /* Specification.  */
  #include <stdlib.h>
  
  #include <errno.h>
  
  /* Call the system's malloc and realloc below.  */
  #undef malloc
  #undef realloc
  
  /* Change the size of an allocated block of memory P to N bytes,
     with error checking.  If N is zero, change it to 1.  If P is NULL,
     use malloc.  */
  
  void *
  rpl_realloc (void *p, size_t n)
  {
    void *result;
  
  #ifdef NEED_REALLOC_GNU
    if (n == 0)
      {
        n = 1;
  
        /* In theory realloc might fail, so don't rely on it to free.  */
        free (p);
        p = NULL;
      }
  #endif
  
    result = (p == NULL ? malloc (n) : realloc (p, n));
  
  #if !HAVE_REALLOC_POSIX
    if (result == NULL)
      errno = ENOMEM;
  #endif
  
    return result;
  }
  

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