59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* Implementation of the ASSOCIATED intrinsic
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Copyright (C) 2003-2017 Free Software Foundation, Inc.
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Contributed by kejia Zhao (CCRG) <kejia_zh@yahoo.com.cn>
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This file is part of the GNU Fortran 95 runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "libgfortran.h"
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extern int associated (const gfc_array_void *, const gfc_array_void *);
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export_proto(associated);
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int
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associated (const gfc_array_void *pointer, const gfc_array_void *target)
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{
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int n, rank;
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if (GFC_DESCRIPTOR_DATA (pointer) == NULL)
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return 0;
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if (GFC_DESCRIPTOR_DATA (pointer) != GFC_DESCRIPTOR_DATA (target))
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return 0;
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if (GFC_DESCRIPTOR_DTYPE (pointer) != GFC_DESCRIPTOR_DTYPE (target))
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return 0;
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rank = GFC_DESCRIPTOR_RANK (pointer);
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for (n = 0; n < rank; n++)
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{
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long extent;
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extent = GFC_DESCRIPTOR_EXTENT(pointer,n);
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if (extent != GFC_DESCRIPTOR_EXTENT(target,n))
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return 0;
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if (GFC_DESCRIPTOR_STRIDE(pointer,n) != GFC_DESCRIPTOR_STRIDE(target,n) && extent != 1)
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return 0;
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if (extent <= 0)
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return 0;
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}
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return 1;
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}
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