3.cc

linux下编程用 编译软件

// Copyright (C) 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.

#include <sstream>
#include <limits>
#include <testsuite_hooks.h>

template<typename T>
bool
test03_check(T n)
{
  using namespace std;
  bool test __attribute__((unused)) = true;

  wstringbuf strbuf;
  wostream o(&strbuf);
  const wchar_t *expect;

  if (numeric_limits<T>::digits + 1 == 16)
    expect = L"177777 ffff";
  else if (numeric_limits<T>::digits + 1 == 32)
    expect = L"37777777777 ffffffff";
  else if (numeric_limits<T>::digits + 1 == 64)
    expect = L"1777777777777777777777 ffffffffffffffff";
  else
    expect = L"wow, you've got some big numbers here";

  o << oct << n << L' ' << hex << n;
  VERIFY ( strbuf.str() == expect );

  return test;
}

void
test03()
{
  short s = -1;
  int i = -1;
  long l = -1;

  test03_check(s);
  test03_check(i);
  test03_check(l);
}

int 
main()
{
  test03();
  return 0;
}