/* Copyright (C) 1994-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),

     On-Line Applications Research Corporation.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

int

do_test (void)

{

  int failures = 0;

  int i;

  auto void try (const char *name, long long int param, int value,

		 int expected);

  void try (const char *name, long long int param, int value, int expected)

    {

      if (value != expected)

	{

	  printf ("%s(%#llx) expected %d got %d\n",

		  name, param, expected, value);

	  ++failures;

	}

      else

	printf ("%s(%#llx) as expected %d\n", name, param, value);

    }

#define TEST(fct, type) \

  try (#fct, 0, fct ((type) 0), 0);					      \

  for (i=0 ; i < 8 * sizeof (type); i++)				      \

    try (#fct, 1ll << i, fct (((type) 1) << i), i + 1);			      \

  for (i=0 ; i < 8 * sizeof (type) ; i++)				      \

    try (#fct, (~((type) 0) >> i) << i, fct ((~((type) 0) >> i) << i), i + 1);\

  try (#fct, 0x80008000, fct ((type) 0x80008000), 16)

  TEST (ffs, int);

  TEST (ffsl, long int);

  TEST (ffsll, long long int);

  if (failures)

    printf ("Test FAILED!  %d failure%s.\n", failures, &"s"[failures == 1]);

  else

    puts ("Test succeeded.");

  return failures;

}

#include <support/test-driver.c>