* configure.in: When reconfiguring remove Makefile in
[official-gcc.git] / libgfortran / generated / all_l4.c
blob0a6f44de38142d55e6360c901893d2098e02f65a
1 /* Implementation of the ALL intrinsic
2 Copyright 2002 Free Software Foundation, Inc.
3 Contributed by Paul Brook <paul@nowt.org>
5 This file is part of the GNU Fortran 95 runtime library (libgfortran).
7 Libgfortran is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
12 In addition to the permissions in the GNU General Public License, the
13 Free Software Foundation gives you unlimited permission to link the
14 compiled version of this file into combinations with other programs,
15 and to distribute those combinations without any restriction coming
16 from the use of this file. (The General Public License restrictions
17 do apply in other respects; for example, they cover modification of
18 the file, and distribution when not linked into a combine
19 executable.)
21 Libgfortran is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
26 You should have received a copy of the GNU General Public
27 License along with libgfortran; see the file COPYING. If not,
28 write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
29 Boston, MA 02110-1301, USA. */
31 #include "config.h"
32 #include <stdlib.h>
33 #include <assert.h>
34 #include "libgfortran.h"
37 #if defined (HAVE_GFC_LOGICAL_4) && defined (HAVE_GFC_LOGICAL_4)
40 extern void all_l4 (gfc_array_l4 * const restrict,
41 gfc_array_l4 * const restrict, const index_type * const restrict);
42 export_proto(all_l4);
44 void
45 all_l4 (gfc_array_l4 * const restrict retarray,
46 gfc_array_l4 * const restrict array,
47 const index_type * const restrict pdim)
49 index_type count[GFC_MAX_DIMENSIONS];
50 index_type extent[GFC_MAX_DIMENSIONS];
51 index_type sstride[GFC_MAX_DIMENSIONS];
52 index_type dstride[GFC_MAX_DIMENSIONS];
53 const GFC_LOGICAL_4 * restrict base;
54 GFC_LOGICAL_4 * restrict dest;
55 index_type rank;
56 index_type n;
57 index_type len;
58 index_type delta;
59 index_type dim;
61 /* Make dim zero based to avoid confusion. */
62 dim = (*pdim) - 1;
63 rank = GFC_DESCRIPTOR_RANK (array) - 1;
65 /* TODO: It should be a front end job to correctly set the strides. */
67 if (array->dim[0].stride == 0)
68 array->dim[0].stride = 1;
70 len = array->dim[dim].ubound + 1 - array->dim[dim].lbound;
71 delta = array->dim[dim].stride;
73 for (n = 0; n < dim; n++)
75 sstride[n] = array->dim[n].stride;
76 extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound;
78 for (n = dim; n < rank; n++)
80 sstride[n] = array->dim[n + 1].stride;
81 extent[n] =
82 array->dim[n + 1].ubound + 1 - array->dim[n + 1].lbound;
85 if (retarray->data == NULL)
87 for (n = 0; n < rank; n++)
89 retarray->dim[n].lbound = 0;
90 retarray->dim[n].ubound = extent[n]-1;
91 if (n == 0)
92 retarray->dim[n].stride = 1;
93 else
94 retarray->dim[n].stride = retarray->dim[n-1].stride * extent[n-1];
97 retarray->data
98 = internal_malloc_size (sizeof (GFC_LOGICAL_4)
99 * retarray->dim[rank-1].stride
100 * extent[rank-1]);
101 retarray->offset = 0;
102 retarray->dtype = (array->dtype & ~GFC_DTYPE_RANK_MASK) | rank;
104 else
106 if (retarray->dim[0].stride == 0)
107 retarray->dim[0].stride = 1;
109 if (rank != GFC_DESCRIPTOR_RANK (retarray))
110 runtime_error ("rank of return array incorrect");
113 for (n = 0; n < rank; n++)
115 count[n] = 0;
116 dstride[n] = retarray->dim[n].stride;
117 if (extent[n] <= 0)
118 len = 0;
121 base = array->data;
122 dest = retarray->data;
124 while (base)
126 const GFC_LOGICAL_4 * restrict src;
127 GFC_LOGICAL_4 result;
128 src = base;
131 /* Return true only if all the elements are set. */
132 result = 1;
133 if (len <= 0)
134 *dest = 1;
135 else
137 for (n = 0; n < len; n++, src += delta)
140 if (! *src)
142 result = 0;
143 break;
146 *dest = result;
149 /* Advance to the next element. */
150 count[0]++;
151 base += sstride[0];
152 dest += dstride[0];
153 n = 0;
154 while (count[n] == extent[n])
156 /* When we get to the end of a dimension, reset it and increment
157 the next dimension. */
158 count[n] = 0;
159 /* We could precalculate these products, but this is a less
160 frequently used path so proabably not worth it. */
161 base -= sstride[n] * extent[n];
162 dest -= dstride[n] * extent[n];
163 n++;
164 if (n == rank)
166 /* Break out of the look. */
167 base = NULL;
168 break;
170 else
172 count[n]++;
173 base += sstride[n];
174 dest += dstride[n];
180 #endif