`/* Implementation of the MAXLOC intrinsic
- Copyright 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002-2023 Free Software Foundation, Inc.
Contributed by Paul Brook <paul@nowt.org>
-This file is part of the GNU Fortran 95 runtime library (libgfortran).
+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 2 of the License, or (at your option) any later version.
-
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file. (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
+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.
-You should have received a copy of the GNU General Public
-License along with libgfortran; see the file COPYING. If not,
-write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+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 "config.h"
-#include <stdlib.h>
-#include <assert.h>
-#include <float.h>
-#include <limits.h>
-#include "libgfortran.h"'
+#include "libgfortran.h"
+#include <assert.h>'
include(iparm.m4)dnl
include(ifunction.m4)dnl
`#if defined (HAVE_'atype_name`) && defined (HAVE_'rtype_name`)'
+#define HAVE_BACK_ARG 1
+
ARRAY_FUNCTION(0,
-` atype_name maxval;
- maxval = atype_min;
- result = 0;',
-` if (*src > maxval || !result)
- {
- maxval = *src;
- result = (rtype_name)n + 1;
- }')
+` atype_name maxval;
+#if defined ('atype_inf`)
+ maxval = -atype_inf;
+#else
+ maxval = atype_min;
+#endif
+ result = 1;',
+`#if defined ('atype_nan`)
+ for (n = 0; n < len; n++, src += delta)
+ {
+ if (*src >= maxval)
+ {
+ maxval = *src;
+ result = (rtype_name)n + 1;
+ break;
+ }
+ }
+#else
+ n = 0;
+#endif
+ for (; n < len; n++, src += delta)
+ {
+ if (back ? *src >= maxval : *src > maxval)
+ {
+ maxval = *src;
+ result = (rtype_name)n + 1;
+ }', `')
MASKED_ARRAY_FUNCTION(0,
-` atype_name maxval;
- maxval = atype_min;
- result = 0;',
-` if (*msrc && (*src > maxval || !result))
- {
- maxval = *src;
- result = (rtype_name)n + 1;
- }')
+` atype_name maxval;
+#if defined ('atype_inf`)
+ maxval = -atype_inf;
+#else
+ maxval = atype_min;
+#endif
+#if defined ('atype_nan`)
+ rtype_name result2 = 0;
+#endif
+ result = 0;',
+` if (*msrc)
+ {
+#if defined ('atype_nan`)
+ if (!result2)
+ result2 = (rtype_name)n + 1;
+ if (*src >= maxval)
+#endif
+ {
+ maxval = *src;
+ result = (rtype_name)n + 1;
+ break;
+ }
+ }
+ }
+#if defined ('atype_nan`)
+ if (unlikely (n >= len))
+ result = result2;
+ else
+#endif
+ if (back)
+ for (; n < len; n++, src += delta, msrc += mdelta)
+ {
+ if (*msrc && unlikely (*src >= maxval))
+ {
+ maxval = *src;
+ result = (rtype_name)n + 1;
+ }
+ }
+ else
+ for (; n < len; n++, src += delta, msrc += mdelta)
+ {
+ if (*msrc && unlikely (*src > maxval))
+ {
+ maxval = *src;
+ result = (rtype_name)n + 1;
+ }')
+
+SCALAR_ARRAY_FUNCTION(0)
#endif