#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <wchar.h>

#include <locale.h>

#include <langinfo.h>

#define LEN 500000

static char *initbuf() {

	char *buf;

	int i, j, k, l;

	setlocale(LC_CTYPE, "C.UTF-8")

	|| setlocale(LC_CTYPE, "en_US.UTF-8")

	|| setlocale(LC_CTYPE, "en_GB.UTF-8")

	|| setlocale(LC_CTYPE, "en.UTF-8")

	|| setlocale(LC_CTYPE, "de_DE-8")

	|| setlocale(LC_CTYPE, "fr_FR-8");

	if (strcmp(nl_langinfo(CODESET), "UTF-8")) exit(1);

	buf = malloc(LEN);

	l = 0;

	for (i=0xc3; i<0xe0; i++)

		for (j=0x80; j<0xc0; j++)

			buf[l++] = i, buf[l++] = j;

	for (i=0xe1; i<0xed; i++)

		for (j=0x80; j<0xc0; j++)

			for (k=0x80; k<0xc0; k++)

				buf[l++] = i, buf[l++] = j, buf[l++] = k;

	for (i=0xf1; i<0xf4; i++)

		for (j=0x80; j<0xc0; j++)

			for (k=0x80; k<0xc0; k++)

				buf[l++] = i, buf[l++] = j, buf[l++] = 0x80, buf[l++] = k;

	buf[l++] = 0;

	return buf;

}

void bench_utf8_bigbuf(int N) {

	char *buf;

	wchar_t *wbuf;

	int i;

	int cs;

	buf = initbuf();

	wbuf = malloc(LEN*sizeof(wchar_t));

	for (i=0; i

		cs ^= mbstowcs(wbuf, buf, LEN);

	buf[0] = cs;

	free(wbuf);

	free(buf);

}

void bench_utf8_onebyone(int N) {

	char *buf;

	wchar_t wc;

	int i, j;

	mbstate_t st = {0};

	buf = initbuf();

	for (i=0; i

		for (j=0; buf[j]; j+=mbrtowc(&wc, buf+j, 4, &st);;

	}

	free(buf);

}