libgfortran/intrinsics/move_alloc.c

/* Generic implementation of the MOVE_ALLOC intrinsic
   Copyright (C) 2006-2016 Free Software Foundation, Inc.
   Contributed by Paul Thomas

This file is part of the GNU Fortran 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"
#include <stdlib.h>


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;

  free (to->base_addr);

  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->base_addr = from->base_addr;
  from->base_addr = 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);
}