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/* Implementation of the ASSOCIATED intrinsic
Copyright (C) 2003-2022 Free Software Foundation, Inc.
Contributed by kejia Zhao (CCRG) <kejia_zh@yahoo.com.cn>
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.
Libgfortran 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"
extern int associated (const gfc_array_void *, const gfc_array_void *);
export_proto(associated);
int
associated (const gfc_array_void *pointer, const gfc_array_void *target)
{
int n, rank;
if (GFC_DESCRIPTOR_DATA (pointer) == NULL)
return 0;
if (GFC_DESCRIPTOR_DATA (pointer) != GFC_DESCRIPTOR_DATA (target))
return 0;
if (GFC_DESCRIPTOR_SPAN (pointer) != GFC_DESCRIPTOR_SPAN (target))
return 0;
if (GFC_DESCRIPTOR_DTYPE (pointer).type != GFC_DESCRIPTOR_DTYPE (target).type)
return 0;
rank = GFC_DESCRIPTOR_RANK (pointer);
if (rank != GFC_DESCRIPTOR_RANK (target))
return 0;
for (n = 0; n < rank; n++)
{
long extent;
extent = GFC_DESCRIPTOR_EXTENT(pointer,n);
if (extent != GFC_DESCRIPTOR_EXTENT(target,n))
return 0;
if (GFC_DESCRIPTOR_STRIDE(pointer,n) != GFC_DESCRIPTOR_STRIDE(target,n) && extent != 1)
return 0;
if (extent <= 0)
return 0;
}
return 1;
}
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