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// Copyright (C) 2004, 2005 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 2, 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 COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// 27.6.1.2.2 arithmetic extractors

#include <istream>

#include <sstream>

#include <locale>

#include <testsuite_hooks.h>

namespace std {

  class test_numpunct1 : public numpunct<wchar_t>

  {

  protected:

    string

    do_grouping() const

    { return string(1, '\003'); }

  };

} // namespace std

void test07()

{

  // manufactured locale, grouping is turned on

  bool test __attribute__((unused)) = true;

  unsigned int h4 = 0, h3 = 0, h2 = 0;

  float f1 = 0.0;

  const std::wstring s1(L"205,199 23,445.25 1,024,365 123,22,24");

  std::wistringstream is(s1);

  is.imbue(std::locale(std::locale(), new std::test_numpunct1));

  // Basic operation.

  is >> h4;

  VERIFY( h4 == 205199 );

  VERIFY( is.good() );

  is.clear();

  is >> f1;

  VERIFY( f1 == 23445.25 );

  VERIFY( is.good() );

  is.clear();

  is >> h3;

  VERIFY( h3 == 1024365 );

  VERIFY( is.good() );

  is.clear();

  is >> h2;

  VERIFY( h2 == 1232224 );

  VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) );

  VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::eofbit) );

  // Stress tests for explicit errors in grouping corner cases.  The

  // validity of these tests and results have been hammered out in

  // private email between bkoz and ncm between Jan 25 and Jan 27, 2000.

  // Thanks nate -- benjamin

  const std::wstring s2(L",111 4,,4 0.25,345 5..25 156,, 1,000000 1000000 1234,567");

  h3 = h4 = h2 = 0;

  f1 = 0.0;

  const wchar_t c_control = L'?';

  wchar_t c = c_control;

  is.clear();

  is.str(s2);

  is >> h4;

  VERIFY( h4 == 0 );

  VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) );

  is.clear();

  is >> c;

  VERIFY( c == L',' );

  VERIFY( is.good() );

  is.ignore(3);

  is >> f1;

  VERIFY( f1 == 0.0 );

  VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) );

  is.clear();

  is >> c;

  VERIFY( c == L',' );

  is >> c;

  VERIFY( c == L'4' );

  VERIFY( is.good() );

  is >> f1;

  VERIFY( f1 == 0.25 );

  VERIFY( is.good() );

  is >> c;

  VERIFY( c == L',' );

  is >> h2;

  VERIFY( h2 == 345 );

  VERIFY( is.good() );

  f1 = 0.0;

  h2 = 0;

  is >> f1;

  VERIFY( f1 == 5.0 );

  VERIFY( is.good() );

  is >> f1;

  VERIFY( f1 == .25 );

  VERIFY( is.good() );

  is >> h3;

  VERIFY( h3 == 0 );

  VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) );

  is.clear();

  is >> c;

  VERIFY( c == L',' ); // second one

  VERIFY( is.good() );

  is >> h2;

  VERIFY( h2 == 1000000 );

  VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) );

  h2 = 0;

  is.clear();

  is >> h2;

  VERIFY( h2 == 1000000 );

  VERIFY( is.good() );

  h2 = 0;

  is >> h2;

  VERIFY( h2 == 1234567 );

  VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) );

  VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::eofbit) );

  is.clear();

}

int main()

{

  test07();

  return 0;

}