#include <stdio.h>

#include <string.h>

#include <wchar.h>

#include <wctype.h>

#include <stdlib.h>

#include <locale.h>

#include <langinfo.h>

#include <limits.h>

#include "test.h"

int main(void)

{

	int i, j;

	mbstate_t st, st2;

	wchar_t wc, map[257], wtmp[257];

	char s[MB_LEN_MAX*256];

	size_t rv;

	int c;

	int ni_errors=0;

	setlocale(LC_CTYPE, "C");

	if (MB_CUR_MAX != 1) t_error("MB_CUR_MAX = %d, expected 1\n", (int)MB_CUR_MAX);

	for (i=0; i<256; i++) {

		st = (mbstate_t){0};

		if (mbrtowc(&wc, &(char){i}, 1, &st) != !!i)

			t_error("mbrtowc failed to convert byte %.2x to wchar_t\n", i);

		if ((map[i]=btowc(i)) == WEOF) {

			t_error("btowc failed to convert byte %.2x to wchar_t\n", i);

			continue;

		}

		for (j=0; j

			if (map[j]==map[i])

				t_error("bytes %.2x and %.2x map to same wchar_t %.4x\n", j, i, (unsigned)map[i]);

		}

	}

	for (i=0; i<256; i++) {

		if (map[i]==WEOF) continue;

		if (wctob(map[i]) != i)

			t_error("wctob failed to convert wchar_t %.4x back to byte %.2x\n", (unsigned)map[i], i);

	}

	/* covering whole 32-bit range would be too slow... maybe add random high tests? */

	for (i=0; i<0x110000; i++) {

		if (wcschr(map+1, i)) continue;

		if ((c=wctob(i)) != WEOF && ni_errors++ < 50)

			t_error("wctob accepted non-image wchar_t %.4x as byte %.2x\n", i, c);

		st = (mbstate_t){0};

		if (wcrtomb(s, i, &st) != -1  && ni_errors++ < 50)

			t_error("wcrtomb accepted non-image wchar_t %.4x\n", i);

	}

	if (ni_errors > 50)

		t_error("additional %d non-image errors (not printed)\n", ni_errors);

	map[256] = 0;

	st = (mbstate_t){0};

	if ((rv=wcsrtombs(s, &(const wchar_t *){map+1}, sizeof s, &st)) != 255)

		t_error("wcsrtombs returned %zd, expected 255\n", rv);

	if ((rv=mbsrtowcs(wtmp, &(const char *){s}, 256, &st)) != 255)

		t_error("mbsrtowcs returned %zd, expected 255\n", rv);

	if (memcmp(map+1, wtmp, 256*sizeof(*map)))

		t_error("wcsrtombs/mbsrtowcs round trip failed\n");

	for (i=128; i<256; i++) {

		if (iswalnum(map[i])) t_error("iswalnum returned true for %.4x (%.2x)\n", map[i], i);

		if (iswalpha(map[i])) t_error("iswalpha returned true for %.4x (%.2x)\n", map[i], i);

		if (iswblank(map[i])) t_error("iswblank returned true for %.4x (%.2x)\n", map[i], i);

		if (iswcntrl(map[i])) t_error("iswcntrl returned true for %.4x (%.2x)\n", map[i], i);

		if (iswdigit(map[i])) t_error("iswdigit returned true for %.4x (%.2x)\n", map[i], i);

		if (iswgraph(map[i])) t_error("iswgraph returned true for %.4x (%.2x)\n", map[i], i);

		if (iswlower(map[i])) t_error("iswlower returned true for %.4x (%.2x)\n", map[i], i);

		if (iswprint(map[i])) t_error("iswprint returned true for %.4x (%.2x)\n", map[i], i);

		if (iswpunct(map[i])) t_error("iswpunct returned true for %.4x (%.2x)\n", map[i], i);

		if (iswspace(map[i])) t_error("iswspace returned true for %.4x (%.2x)\n", map[i], i);

		if (iswupper(map[i])) t_error("iswupper returned true for %.4x (%.2x)\n", map[i], i);

		if (iswxdigit(map[i])) t_error("iswxdigit returned true for %.4x (%.2x)\n", map[i], i);

	}

	return t_status;

}