gcc/libstdc++-v3/testsuite/27_io/ios_manip_fmtflags.cc

// 981027 ncm work with libstdc++v3

// Copyright (C) 1997-1999, 2000 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

#include <iostream>
#include <sstream>
#include <locale>
#include <iomanip>
#include <debug_assert.h>

struct MyNP : std::numpunct<char>
{
  std::string do_truename() const;
  std::string do_falsename() const;
};

std::string MyNP::do_truename()  const { static std::string s("yea"); return s; }
std::string MyNP::do_falsename() const { static std::string s("nay"); return s; }

int
test01()
{
  std::cout << true << " " << false << std::endl;
  std::cout << std::boolalpha;
  std::cout << true << " " << false << std::endl;

  std::cout << ":" << std::setw(6) << std::internal << true << ":" << std::endl;
  std::cout << ":" << std::setw(6) << std::left << true << ":" << std::endl;
  std::cout << ":" << std::setw(6) << std::right << false << ":" << std::endl;
  std::cout << std::noboolalpha;
  std::cout << ":" << std::setw(3) << std::internal << true << ":" << std::endl;
  std::cout << ":" << std::setw(3) << std::left << true << ":" << std::endl;
  std::cout << ":" << std::setw(3) << std::right << false << ":" << std::endl;

  std::locale loc = std::locale (std::locale(), new MyNP);
  std::cout.imbue(loc);

  std::cout << std::boolalpha;
  std::cout << true << " " << false << std::endl;

  std::cout << ":" << std::setw(6) << std::internal << true << ":" << std::endl;
  std::cout << ":" << std::setw(6) << std::left << true << ":" << std::endl;
  std::cout << ":" << std::setw(6) << std::right << false << ":" << std::endl;

#ifdef DEBUG_ASSERT
  assert (std::cout.good());
#endif
  return 0;
}

int
test02()
{
  bool test = true;
  const std::string strue("true");
  const std::string sfalse("false");
  std::string str01;
  std::string str02;

  std::locale loc("");
  std::ostringstream ostr01;
  ostr01.imbue(loc);
  std::ios_base::fmtflags ff = ostr01.flags(std::ios_base::boolalpha);

  ostr01 << true;
  str02 = ostr01.str();
  VERIFY( str02 == strue );

  ostr01.str(str01);
  ostr01 << false;
  str02 = ostr01.str();
  VERIFY( str02 == sfalse );

#ifdef DEBUG_ASSERT
  assert(test);
#endif
  return 0;
}

int 
main() {
  test01();
  test02();
  return 0;
}

// Projected output:
/*
1 0
true false
:  true:
:true  :
: false:
:  1:
:1  :
:  0:
yea nay
:   yea:
:yea   :
:   nay:
*/