1/* Based on a test program by Won Kyu Park <wkpark@chem.skku.ac.kr>. */
2
3#include <wchar.h>
4#include <stdio.h>
5#include <stdlib.h>
6#include <string.h>
7#include <wctype.h>
8#include <locale.h>
9
10int
11main (void)
12{
13 int test = 0;
14 int idx = 0;
15 char buf[100], *pchar;
16 wchar_t tmp[10];
17 wchar_t tmp1[] = { L'W', L'o', L'r', L'l', L'd', L'\0' };
18 char str[] = "Hello";
19 int result = 0;
20
21 pchar = setlocale (LC_ALL, "de_DE.UTF-8");
22 printf (format: "locale : %s\n",pchar);
23 printf ("MB_CUR_MAX %zd\n", MB_CUR_MAX);
24
25 puts (s: "---- test 1 ------");
26 test = mbstowcs (pwcs: tmp, s: str, n: (strlen (str) + 1) * sizeof (char));
27 printf (format: "size of string by mbstowcs %d\n", test);
28 if (test != strlen (str))
29 result = 1;
30 idx += wctomb (&buf[0], tmp[0]);
31 idx += wctomb (&buf[idx], tmp[1]);
32 buf[idx] = 0;
33 printf (format: "orig string %s\n", str);
34 printf (format: "string by wctomb %s\n", buf);
35 printf (format: "string by %%C %C", (wint_t) tmp[0]);
36 if (tmp[0] != L'H')
37 result = 1;
38 printf (format: "%C\n", (wint_t) tmp[1]);
39 if (tmp[1] != L'e')
40 result = 1;
41 printf (format: "string by %%S %S\n", tmp);
42 if (wcscmp (s1: tmp, s2: L"Hello") != 0)
43 result = 1;
44 puts (s: "---- test 2 ------");
45 printf (format: "wchar string %S\n", tmp1);
46 printf (format: "wchar %C\n", (wint_t) tmp1[0]);
47 test = wcstombs (s: buf, pwcs: tmp1, n: (wcslen (s: tmp1) + 1) * sizeof (wchar_t));
48 printf (format: "size of string by wcstombs %d\n", test);
49 if (test != wcslen (s: tmp1))
50 result = 1;
51 test = wcslen (s: tmp1);
52 printf (format: "size of string by wcslen %d\n", test);
53 printf (format: "char %s\n", buf);
54 if (strcmp (buf, "World") != 0)
55 result = 1;
56 puts (s: "------------------");
57
58 return result;
59}
60

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source code of glibc/wcsmbs/wcsmbs-tst1.c