libgfortran/m4/maxloc1.m4

   1 `/* Implementation of the MAXLOC intrinsic
   2    Copyright (C) 2002-2024 Free Software Foundation, Inc.
   3    Contributed by Paul Brook <paul@nowt.org>
   4
   5 This file is part of the GNU Fortran runtime library (libgfortran).
   6
   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 3 of the License, or (at your option) any later version.
  11
  12 Libgfortran is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 #include "libgfortran.h"
  27 #include <assert.h>'
  28
  29 include(iparm.m4)dnl
  30 include(ifunction.m4)dnl
  31
  32 `#if defined (HAVE_'atype_name`) && defined (HAVE_'rtype_name`)'
  33
  34 #define HAVE_BACK_ARG 1
  35
  36 ARRAY_FUNCTION(0,
  37 `       atype_name maxval;
  38 #if defined ('atype_inf`)
  39         maxval = -atype_inf;
  40 #else
  41         maxval = atype_min;
  42 #endif
  43         result = 1;',
  44 `#if defined ('atype_nan`)
  45              for (n = 0; n < len; n++, src += delta)
  46                {
  47                 if (*src >= maxval)
  48                   {
  49                     maxval = *src;
  50                     result = (rtype_name)n + 1;
  51                     break;
  52                   }
  53               }
  54 #else
  55             n = 0;
  56 #endif
  57             for (; n < len; n++, src += delta)
  58               {
  59                 if (back ? *src >= maxval : *src > maxval)
  60                   {
  61                     maxval = *src;
  62                     result = (rtype_name)n + 1;
  63                   }', `')
  64
  65 MASKED_ARRAY_FUNCTION(0,
  66 `       atype_name maxval;
  67 #if defined ('atype_inf`)
  68         maxval = -atype_inf;
  69 #else
  70         maxval = atype_min;
  71 #endif
  72 #if defined ('atype_nan`)
  73         rtype_name result2 = 0;
  74 #endif
  75         result = 0;',
  76 `               if (*msrc)
  77                   {
  78 #if defined ('atype_nan`)
  79                     if (!result2)
  80                       result2 = (rtype_name)n + 1;
  81                     if (*src >= maxval)
  82 #endif
  83                       {
  84                         maxval = *src;
  85                         result = (rtype_name)n + 1;
  86                         break;
  87                       }
  88                   }
  89               }
  90 #if defined ('atype_nan`)
  91             if (unlikely (n >= len))
  92               result = result2;
  93             else
  94 #endif
  95             if (back)
  96               for (; n < len; n++, src += delta, msrc += mdelta)
  97                 {
  98                   if (*msrc && unlikely (*src >= maxval))
  99                     {
 100                       maxval = *src;
 101                       result = (rtype_name)n + 1;
 102                     }
 103                 }
 104             else
 105               for (; n < len; n++, src += delta, msrc += mdelta)
 106                 {
 107                   if (*msrc && unlikely (*src > maxval))
 108                     {
 109                       maxval = *src;
 110                       result = (rtype_name)n + 1;
 111                     }')
 112
 113 SCALAR_ARRAY_FUNCTION(0)
 114
 115 #endif