gcc/libgfortran/intrinsics/move_alloc.c

/* Generic implementation of the MOVE_ALLOC intrinsic
   Copyright (C) 2006, 2007, 2009 Free Software Foundation, Inc.
   Contributed by Paul Thomas

This file is part of the GNU Fortran 95 runtime library (libgfortran).

Libgfortran 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.

Ligbfortran 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.

Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<http://www.gnu.org/licenses/>.  */

#include "libgfortran.h"

#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif

extern void move_alloc (gfc_array_char *, gfc_array_char *);
export_proto(move_alloc);

void
move_alloc (gfc_array_char * from, gfc_array_char * to)
{
  int i;

  if (to->data)
    free (to->data);

  for (i = 0; i < GFC_DESCRIPTOR_RANK (from); i++)
    {
      GFC_DIMENSION_SET(to->dim[i],GFC_DESCRIPTOR_LBOUND(from,i),
			GFC_DESCRIPTOR_UBOUND(from,i),
			GFC_DESCRIPTOR_STRIDE(from,i));
      GFC_DIMENSION_SET(from->dim[i],GFC_DESCRIPTOR_LBOUND(from,i),
			GFC_DESCRIPTOR_LBOUND(from,i), 0);
    }

  to->offset = from->offset;
  to->dtype = from->dtype;
  to->data = from->data;
  from->data = NULL;
}

extern void move_alloc_c (gfc_array_char *, GFC_INTEGER_4,
			  gfc_array_char *, GFC_INTEGER_4);
export_proto(move_alloc_c);

void
move_alloc_c (gfc_array_char * from,
	      GFC_INTEGER_4 from_length __attribute__((unused)),
	      gfc_array_char * to,
	      GFC_INTEGER_4 to_length __attribute__((unused)))
{
  move_alloc (from, to);
}