#include <inttypes.h>

#include <locale.h>

#include <stdio.h>

#include <uchar.h>

#include <stdint.h>

static int

do_test (void)

{

  if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)

    {

      puts ("cannot set locale");

      return 1;

    }

  int result = 0;

  char32_t c32 = 48;

  do

    {

      if (c32 >= 0xd800 && c32 <= 0xe000)

	continue;

      char buf[20];

      size_t n1 = c32rtomb (buf, c32, NULL);

      if (n1 <= 0)

	{

	  printf ("c32rtomb for U'\\x%" PRIx32 "' failed\n", (uint32_t) c32);

	  result = 1;

	  continue;

	}

      char32_t c32out;

      size_t n2 = mbrtoc32 (&c32out, buf, n1, NULL);

      if ((ssize_t) n2 < 0)

	{

	  printf ("mbrtoc32 for U'\\x%" PRIx32 "' failed\n", (uint32_t) c32);

	  result = 1;

	  continue;

	}

      if (n2 != n1)

	{

	  printf ("mbrtoc32 for U'\\x%" PRIx32 "' consumed %zu bytes, not %zu\n",

		  (uint32_t) c32, n2, n1);

	  result = 1;

	}

      else if (c32out != c32)

	{

	  printf ("mbrtoc32 for U'\\x%" PRIx32 "' produced U'\\x%" PRIx32 "\n",

		  (uint32_t) c32, (uint32_t) c32out);

	  result = 1;

	}

      char16_t c16;

      size_t n3 = mbrtoc16 (&c16, buf, n1, NULL);

      if (n3 != n1)

	{

	  printf ("mbrtoc16 for U'\\x%" PRIx32 "' did not consume all bytes\n",

		  (uint32_t) c32);

	  result = 1;

	  continue;

	}

      if (c32 < 0x10000)

	{

	  if (c16 != c32)

	    {

	      printf ("mbrtoc16 for U'\\x%" PRIx32 "' produce u'\\x%" PRIx16 "'\n",

		      (uint32_t) c32, (uint16_t) c16);

	      result = 1;

	      continue;

	    }

	}

      else

	{

	  buf[0] = '1';

	  char16_t c16_2;

	  size_t n4 = mbrtoc16 (&c16_2, buf, 1, NULL);

	  if (n4 != (size_t) -3)

	    {

	      printf ("second mbrtoc16 for U'\\x%" PRIx32 "' did not return -3\n",

		      (uint32_t) c32);

	      result = 1;

	      continue;

	    }

	  if (c32 != (((uint32_t) (c16 - 0xd7c0)) << 10) + (c16_2 - 0xdc00))

	    {

	      printf ("mbrtoc16 for U'\\x%" PRIx32 "' returns U'\\x%" PRIx32 "\n",

		      (uint32_t) c32,

		      (((uint32_t) (c16 - 0xd7c0)) << 10) + (c16_2 - 0xdc00));

	      result = 1;

	      continue;

	    }

	}

      buf[0] = '\0';

      char16_t c16_nul;

      n3 = mbrtoc16 (&c16_nul, buf, n1, NULL);

      if (n3 != 0)

	{

	  printf ("mbrtoc16 for '\\0' returns %zd\n", n3);

	  result = 1;

	  continue;

	}

      if (c32 < 0x10000)

	{

	  size_t n5 = c16rtomb (buf, c16, NULL);

	  if ((ssize_t) n5 < 0)

	    {

	      printf ("c16rtomb for U'\\x%" PRIx32 "' failed with %zd\n",

		      (uint32_t) c32, n5);

	      result = 1;

	      continue;

	    }

	  if (n5 != n1)

	    {

	      printf ("c16rtomb for U'\\x%" PRIx32 "' produced %zu bytes instead of %zu bytes\n",

		      (uint32_t) c32, n5, n1);

	      result = 1;

	      continue;

	    }

	}

    }

  while ((c32 += 0x1111) <= U'\x12000');

  return result;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"