tests/bench-mbswidth.c

   1 /* Benchmarks for mbswidth().
   2    Copyright (C) 2023-2024 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 #include <config.h>
  18
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include <locale.h>
  22 #include <uchar.h>
  23
  24 #include "bench.h"
  25 #include "bench-multibyte.h"
  26 #include "mbswidth.h"
  27
  28 static void
  29 do_test (char test, int repeat, const char *locale_name, const char *text)
  30 {
  31   printf ("Test %c\n", test);
  32   if (setlocale (LC_ALL, locale_name) != NULL)
  33     {
  34       struct timings_state ts;
  35       timing_start (&ts);
  36
  37       int count;
  38       for (count = 0; count < repeat; count++)
  39         {
  40           mbswidth (text, 0);
  41         }
  42
  43       timing_end (&ts);
  44       timing_output (&ts);
  45     }
  46   else
  47     {
  48       printf ("Skipping test: locale %s not installed.\n", locale_name);
  49     }
  50   printf ("\n");
  51 }
  52
  53 /* Performs some or all of the following tests:
  54      a - ASCII text, C locale
  55      b - ASCII text, UTF-8 locale
  56      c - French text, C locale
  57      d - French text, ISO-8859-1 locale
  58      e - French text, UTF-8 locale
  59      f - Greek text, C locale
  60      g - Greek text, ISO-8859-7 locale
  61      h - Greek text, UTF-8 locale
  62      i - Chinese text, UTF-8 locale
  63      j - Chinese text, GB18030 locale
  64    Pass the tests to be performed as first argument.  */
  65 int
  66 main (int argc, char *argv[])
  67 {
  68   if (argc != 3)
  69     {
  70       fprintf (stderr, "Usage: %s TESTS REPETITIONS\n", argv[0]);
  71       fprintf (stderr, "Example: %s abcdefghij 100000\n", argv[0]);
  72       exit (1);
  73     }
  74
  75   const char *tests = argv[1];
  76   int repeat = atoi (argv[2]);
  77
  78   text_init ();
  79
  80   /* Execute each test.  */
  81   size_t i;
  82   for (i = 0; i < strlen (tests); i++)
  83     {
  84       char test = tests[i];
  85
  86       switch (test)
  87         {
  88         case 'a':
  89           do_test (test, repeat, "C", text_latin_ascii);
  90           break;
  91         case 'b':
  92           do_test (test, repeat, "en_US.UTF-8", text_latin_ascii);
  93           break;
  94         case 'c':
  95           do_test (test, repeat, "C", text_french_iso8859);
  96           break;
  97         case 'd':
  98           do_test (test, repeat, "fr_FR.ISO-8859-1", text_french_iso8859);
  99           break;
 100         case 'e':
 101           do_test (test, repeat, "en_US.UTF-8", text_french_utf8);
 102           break;
 103         case 'f':
 104           do_test (test, repeat, "C", text_greek_iso8859);
 105           break;
 106         case 'g':
 107           do_test (test, repeat, "el_GR.ISO-8859-7", text_greek_iso8859);
 108           break;
 109         case 'h':
 110           do_test (test, repeat, "en_US.UTF-8", text_greek_utf8);
 111           break;
 112         case 'i':
 113           do_test (test, repeat, "en_US.UTF-8", text_chinese_utf8);
 114           break;
 115         case 'j':
 116           do_test (test, repeat, "zh_CN.GB18030", text_chinese_gb18030);
 117           break;
 118         default:
 119           /* Ignore.  */
 120           ;
 121         }
 122     }
 123
 124   return 0;
 125 }