#define _GNU_SOURCE 1
#include <config.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
int total;
int main ()
{
  const char *teststring = "\
This is a list of ways to say hello in various languages.\n\
Its purpose is to illustrate a number of scripts.\n\
\n\
---------------------------------------------------------\n\
Amharic (አማርኛ)  ሠላም\n\
Arabic                  ﺍﻟﺴﻼﻡ ﻋﻠﻴﻜﻢ\n\
Czech (česky)           Dobrý den\n\
Danish (Dansk)          Hej, Goddag\n\
English                 Hello\n\
Esperanto               Saluton\n\
Estonian                Tere, Tervist\n\
FORTRAN                 PROGRAM\n\
Finnish (Suomi)         Hei\n\
French (Français)       Bonjour, Salut\n\
German (Deutsch Nord)   Guten Tag\n\
German (Deutsch Süd)    Grüß Gott\n\
Greek (Ελληνικά)        Γειά σας\n\
Hebrew                  שלום\n\
Italiano                Ciao, Buon giorno\n\
Lao(ພາສາລາວ)            ສະບາຍດີ, ຂໍໃຫ້ໂຊກດີ\n\
Maltese                 Ciao\n\
Nederlands, Vlaams      Hallo, Dag\n\
Norwegian (Norsk)       Hei, God dag\n\
Polish                  Dzień dobry, Hej\n\
Russian (Русский)       Здравствуйте!\n\
Slovak                  Dobrý deň\n\
Spanish (Español)       ¡Hola!\n\
Swedish (Svenska)       Hej, Goddag\n\
Thai (ภาษาไทย)          สวัสดีครับ, สวัสดีค่ะ\n\
\n\
Tigrigna (ትግርኛ) ሰላማት\n\
Turkish (Türkçe)        Merhaba\n\
Vietnamese (Tiếng Việt) Chào bạn\n\
\n\
Japanese (日本語)               こんにちは, ｺﾝﾆﾁﾊ\n\
Chinese (中文,普通话,汉语)      你好\n\
Cantonese (粵語,廣東話)         早晨, 你好\n\
Korean (한글)                   안녕하세요, 안녕하십니까\n\
\n\
Difference among chinese characters in GB, JIS, KSC, BIG5:\n\
        GB   -- 元气  开发\n\
        JIS  -- 元気  開発\n\
        KSC  -- 元氣  開發\n\
        BIG5 -- 元氣  開發\n\
\n\
Just for a test of JISX0212: 騏驎 (the second character is of JISX0212)\n\
";

  setlocale (LC_ALL, "en_US.UTF-8");

#define REPEAT 10000
  {
    int repeat;
    for (repeat = 0; repeat < REPEAT; repeat++)
      {
        int width = 0;
        const char *cp = teststring;
        while (*cp != '\0')
          {
            wchar_t wc;
            int i = mbtowc (&wc, cp, 6);
            if (i < 0) break;
            width += wcwidth (wc);
            cp += i;
          }
        total += width;
      }
  }

  return 0;
}
/*
In UTF-8 locale:
glibc implementation:   104 µs
gnulib implementation: 1050 µs
                         80 µs for the mbtowc call
                        960 µs for the wcwidth call
                        900 µs for the locale_charset call
                         40 µs for the STREQ call
                         20 µs for the uc_width call

 Compile-command:
 gcc -Wall -I.. bench-wcwidth.c lib/wcwidth.c lib/localcharset.c lib/uniwidth/width.c -Ilib -DLIBDIR='"/usr/share"' -DHAVE_WORKING_O_NOFOLLOW=0
 */