1  #include <iconv.h>
       2  #include <locale.h>
       3  #include <stdio.h>
       4  #include <string.h>
       5  
       6  int
       7  main (void)
       8  {
       9    iconv_t cd;
      10    const char str[] = "�������";
      11    const char expected[] = "AEaeOEoeUEuess";
      12    char *inptr = (char *) str;
      13    size_t inlen = strlen (str) + 1;
      14    char outbuf[500];
      15    char *outptr = outbuf;
      16    size_t outlen = sizeof (outbuf);
      17    int result = 0;
      18    size_t n;
      19  
      20    if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
      21      {
      22        puts ("setlocale failed");
      23        return 1;
      24      }
      25  
      26    cd = iconv_open ("ANSI_X3.4-1968//TRANSLIT", "ISO-8859-1");
      27    if (cd == (iconv_t) -1)
      28      {
      29        puts ("iconv_open failed");
      30        return 1;
      31      }
      32  
      33    n = iconv (cd, &inptr, &inlen, &outptr, &outlen);
      34    if (n != 7)
      35      {
      36        if (n == (size_t) -1)
      37  	printf ("iconv() returned error: %m\n");
      38        else
      39  	printf ("iconv() returned %zd, expected 7\n", n);
      40        result = 1;
      41      }
      42    if (inlen != 0)
      43      {
      44        puts ("not all input consumed");
      45        result = 1;
      46      }
      47    else if (inptr - str != strlen (str) + 1)
      48      {
      49        printf ("inptr wrong, advanced by %td\n", inptr - str);
      50        result = 1;
      51      }
      52    if (memcmp (outbuf, expected, sizeof (expected)) != 0)
      53      {
      54        printf ("result wrong: \"%.*s\", expected: \"%s\"\n",
      55  	      (int) (sizeof (outbuf) - outlen), outbuf, expected);
      56        result = 1;
      57      }
      58    else if (outlen != sizeof (outbuf) - sizeof (expected))
      59      {
      60        printf ("outlen wrong: %zd, expected %zd\n", outlen,
      61  	      sizeof (outbuf) - 15);
      62        result = 1;
      63      }
      64    else
      65      printf ("output is \"%s\" which is OK\n", outbuf);
      66  
      67    return result;
      68  }