/*

 * Copyright (C) 2011-2017 Free Software Foundation, Inc.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <config.h>

#include <inttypes.h>

#include "signature.h"

#ifndef strtoumax

SIGNATURE_CHECK (strtoumax, uintmax_t, (const char *, char **, int));

#endif

#include <errno.h>

#include "macros.h"

int

main (void)

{

  /* Subject sequence empty or invalid.  */

  {

    const char input[] = "";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 0);

    ASSERT (ptr == input);

    ASSERT (errno == 0 || errno == EINVAL);

  }

  {

    const char input[] = " ";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 0);

    ASSERT (ptr == input);

    ASSERT (errno == 0 || errno == EINVAL);

  }

  {

    const char input[] = " +";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 0);

    ASSERT (ptr == input);

    ASSERT (errno == 0 || errno == EINVAL);

  }

  {

    const char input[] = " -";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 0);

    ASSERT (ptr == input);

    ASSERT (errno == 0 || errno == EINVAL);

  }

  /* Simple integer values.  */

  {

    const char input[] = "0";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 0);

    ASSERT (ptr == input + 1);

    ASSERT (errno == 0);

  }

  {

    const char input[] = "+0";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 0);

    ASSERT (ptr == input + 2);

    ASSERT (errno == 0);

  }

  {

    const char input[] = "-0";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 0);

    ASSERT (ptr == input + 2);

    ASSERT (errno == 0);

  }

  {

    const char input[] = "23";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 23);

    ASSERT (ptr == input + 2);

    ASSERT (errno == 0);

  }

  {

    const char input[] = " 23";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 23);

    ASSERT (ptr == input + 3);

    ASSERT (errno == 0);

  }

  {

    const char input[] = "+23";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 23);

    ASSERT (ptr == input + 3);

    ASSERT (errno == 0);

  }

  {

    const char input[] = "-23";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == - (uintmax_t) 23);

    ASSERT (ptr == input + 3);

    ASSERT (errno == 0);

  }

  /* Large integer values.  */

  {

    const char input[] = "2147483647";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 2147483647);

    ASSERT (ptr == input + 10);

    ASSERT (errno == 0);

  }

  {

    const char input[] = "-2147483648";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == - (uintmax_t) 2147483648U);

    ASSERT (ptr == input + 11);

    ASSERT (errno == 0);

  }

  {

    const char input[] = "4294967295";

    char *ptr;

    uintmax_t result;

    errno = 0;

    result = strtoumax (input, &ptr, 10);

    ASSERT (result == 4294967295U);

    ASSERT (ptr == input + 10);

    ASSERT (errno == 0);

  }

  return 0;

}