68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/* Implementation of the SHAPE intrinsic
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Copyright (C) 2002-2016 Free Software Foundation, Inc.
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Contributed by Paul Brook <paul@nowt.org>
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This file is part of the GNU Fortran 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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#include <stdlib.h>
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#include <assert.h>
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#if defined (HAVE_GFC_INTEGER_4)
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extern void shape_4 (gfc_array_i4 * const restrict ret,
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const array_t * const restrict array);
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export_proto(shape_4);
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void
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shape_4 (gfc_array_i4 * const restrict ret,
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const array_t * const restrict array)
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{
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int n;
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index_type stride;
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index_type extent;
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int rank;
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rank = GFC_DESCRIPTOR_RANK (array);
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if (ret->base_addr == NULL)
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{
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GFC_DIMENSION_SET(ret->dim[0], 0, rank - 1, 1);
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ret->offset = 0;
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ret->base_addr = xmallocarray (rank, sizeof (GFC_INTEGER_4));
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}
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stride = GFC_DESCRIPTOR_STRIDE(ret,0);
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if (GFC_DESCRIPTOR_EXTENT(ret,0) < 1)
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return;
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for (n = 0; n < rank; n++)
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{
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extent = GFC_DESCRIPTOR_EXTENT(array,n);
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ret->base_addr[n * stride] = extent > 0 ? extent : 0 ;
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}
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}
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#endif
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