Update copyright years.

[thirdparty/gcc.git] / libgfortran / m4 / maxloc1.m4

diff --git a/libgfortran/m4/maxloc1.m4 b/libgfortran/m4/maxloc1.m4
index b6b4fa705acbb18fd82d813ad824b21aae64776f..a5069a92034fc118b253276cd1aa2035d8e19e79 100644 (file)
--- a/libgfortran/m4/maxloc1.m4
+++ b/libgfortran/m4/maxloc1.m4
@@ -1,63 +1,114 @@
 `/* 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 <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)