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

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// 1999-07-22 bkoz
// Copyright (C) 1994, 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.
// 27.6.2.7 standard basic_ostream manipulators
#include <ostream>
#include <sstream>
#include <stdexcept>
#include <debug_assert.h>
bool test01(void)
{
bool test = true;
const char str_lit01[] = " venice ";
const std::string str01(" santa barbara ");
std::string str02(str_lit01);
std::string str04;
std::string str05;
std::ios_base::iostate flag1, flag2, flag3, flag4, flag5;
// template<_CharT, _Traits>
// basic_ostream<_CharT, _Traits>& endl(basic_ostream<_Char, _Traits>& os)
std::ostringstream oss01(str01);
std::ostringstream oss02;
std::ostringstream::int_type i01, i02;
typedef std::ostringstream::traits_type traits_type;
oss01 << std::endl;
str04 = oss01.str();
VERIFY( str04.size() == str01.size() );
oss02 << std::endl;
str05 = oss02.str();
VERIFY( str05.size() == 1 );
// template<_CharT, _Traits>
// basic_ostream<_CharT, _Traits>& ends(basic_ostream<_Char, _Traits>& os)
oss01 << std::ends;
str04 = oss01.str();
VERIFY( str04.size() == str01.size() );
VERIFY( str04[1] == char() );
oss02 << std::ends;
str05 = oss02.str();
VERIFY( str05.size() == 2 );
VERIFY( str05[1] == char() );
// template<_CharT, _Traits>
// basic_ostream<_CharT, _Traits>& flush(basic_ostream<_Char, _Traits>& os)
oss01.flush();
str04 = oss01.str();
VERIFY( str04.size() == str01.size() );
oss02.flush();
str05 = oss02.str();
VERIFY( str05.size() == 2 );
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
// based vaguely on this:
// http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00109.html
bool test02()
{
using namespace std;
typedef ostringstream::int_type int_type;
bool test = true;
ostringstream osst_01;
const string str_00("herbie_hancock");
int_type len1 = str_00.size();
osst_01 << str_00;
VERIFY( osst_01.str().size() == len1 );
osst_01 << ends;
const string str_01("speak like a child");
int_type len2 = str_01.size();
osst_01 << str_01;
int_type len3 = osst_01.str().size();
VERIFY( len1 < len3 );
VERIFY( len3 == len1 + len2 + 1 );
osst_01 << ends;
const string str_02("+ inventions and dimensions");
int_type len4 = str_02.size();
osst_01 << str_02;
int_type len5 = osst_01.str().size();
VERIFY( len3 < len5 );
VERIFY( len5 == len3 + len4 + 1 );
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
int main()
{
test01();
return 0;
}