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// Copyright (C) 2004 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

// XXX This test fails on sparc-solaris2 because of a bug in libc

// XXX sscanf for very long input.  See:

// XXX http://gcc.gnu.org/ml/gcc/2002-12/msg01422.html

// { dg-do run { xfail sparc*-*-solaris2* } }

#include <istream>

#include <sstream>

#include <testsuite_hooks.h>

// libstdc++/3720

// excess input should not cause a core dump

template<typename T>

bool test12_aux(bool integer_type)

{

  bool test __attribute__((unused)) = true;

  int digits_overflow;

  if (integer_type)

    // This many digits will overflow integer types in base 10.

    digits_overflow = std::numeric_limits<T>::digits10 + 2;

  else

    // This might do it, unsure.

    digits_overflow = std::numeric_limits<T>::max_exponent10 + 1;

  std::wstring st;

  std::wstring part = L"1234567890123456789012345678901234567890";

  for (std::size_t i = 0; i < digits_overflow / part.size() + 1; ++i)

    st += part;

  std::wstringbuf sb(st);

  std::wistream is(&sb);

  T t;

  is >> t;

  VERIFY( is.fail() );

  return test;

}

bool test12()

{

  bool test __attribute__((unused)) = true;

  VERIFY( test12_aux<short>(true) );

  VERIFY( test12_aux<int>(true) );

  VERIFY( test12_aux<long>(true) );

  VERIFY( test12_aux<float>(false) );

  VERIFY( test12_aux<double>(false) );

  VERIFY( test12_aux<long double>(false) );

  return test;

}

int main()

{

  test12();

  return 0;

}