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// 980930 bkoz work with libstdc++v3

// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,

// 2006, 2007, 2009

// Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library 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, or (at your option)

// any later version.

// This 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 General Public License for more details.

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

// with this library; see the file COPYING3.  If not see

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

// 21.3.6.8 basic_string::compare

// int compare(const basic_string& str) const;

// int compare(size_type pos1, size_type n1, const basic_string& str) const;

// int compare(size_type pos1, size_type n1, const basic_string& str,

//             size_type pos2, size_type n2) const;

// int compare(const charT* s) const;

// int compare(size_type pos1, size_type n1,

//             const charT* s, size_type n2 = npos) const;

// NB compare should be thought of as a lexographical compare, ie how

// things would be sorted in a dictionary.

#include <string>

#include <cstring>

#include <testsuite_hooks.h>

enum want_value {lt=0, z=1, gt=2};

int

test_value(int result, want_value expected);

int

test_value(int result, want_value expected)

{

  bool test __attribute__((unused)) = true;

  bool pass = false;

  switch (expected) {

  case lt:

    if (result < 0)

      pass = true;

    break;

  case z:

    if (!result)

      pass = true;

    break;

  case gt:

    if (result > 0)

      pass = true;

    break;

  default:

    pass = false; //should not get here

  }

  VERIFY(pass);

  return 0;

}

int

test01()

{

  using namespace std;

  string        str_0("costa rica");

  string        str_1("costa marbella");

  string        str_2;

  //sanity check

  test_value(strcmp("costa marbella", "costa rica"), lt);

  test_value(strcmp("costa rica", "costa rica"), z);

  test_value(strcmp(str_1.data(), str_0.data()), lt);

  test_value(strcmp(str_0.data(), str_1.data()), gt);

  test_value(strncmp(str_1.data(), str_0.data(), 6), z);

  test_value(strncmp(str_1.data(), str_0.data(), 14), lt);

  test_value(memcmp(str_1.data(), str_0.data(), 6), z);

  test_value(memcmp(str_1.data(), str_0.data(), 14), lt);

  test_value(memcmp("costa marbella", "costa rica", 14), lt);

  // int compare(const basic_string& str) const;

  test_value(str_0.compare(str_1), gt); //because r>m

  test_value(str_1.compare(str_0), lt); //because m<r

  str_2 = str_0;

  test_value(str_2.compare(str_0), z);

  str_2 = "cost";

  test_value(str_2.compare(str_0), lt);

  str_2 = "costa ricans";

  test_value(str_2.compare(str_0), gt);

  // int compare(size_type pos1, size_type n1, const basic_string& str) const;

  test_value(str_1.compare(0, 6, str_0), lt);

  str_2 = "cost";

  test_value(str_1.compare(0, 4, str_2), z);

  test_value(str_1.compare(0, 5, str_2), gt);

  // int compare(size_type pos1, size_type n1, const basic_string& str, 

  //             size_type pos2, size_type n2) const;   

  test_value(str_1.compare(0, 6, str_0, 0, 6), z);

  test_value(str_1.compare(0, 7, str_0, 0, 7), lt);

  test_value(str_0.compare(0, 7, str_1, 0, 7), gt);

  // int compare(const charT* s) const;

  test_value(str_0.compare("costa marbella"), gt);

  test_value(str_1.compare("costa rica"), lt);

  str_2 = str_0;

  test_value(str_2.compare("costa rica"), z);

  test_value(str_2.compare("cost"), gt);

  test_value(str_2.compare("costa ricans"), lt);

  // int compare(size_type pos, size_type n1, const charT* str,

  //             size_type n2 = npos) const;

  test_value(str_1.compare(0, 6, "costa rica", 0, 6), z);

  test_value(str_1.compare(0, 7, "costa rica", 0, 7), lt);

  test_value(str_0.compare(0, 7, "costa marbella", 0, 7), gt);

  return 0;

}

int

main()

{

  test01();

  return 0;

}