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// 1999-07-26 bkoz
// Copyright (C) 1999-2019 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 3, 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 COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 27.6.1.2.3 character extractors
#include <istream>
#include <sstream>
#include <testsuite_hooks.h>
void test01()
{
std::string str_01;
const std::string str_02("coltrane playing 'softly as a morning sunrise'");
const std::string str_03("coltrane");
std::stringbuf isbuf_01(std::ios_base::in);
std::stringbuf isbuf_02(str_02, std::ios_base::in);
std::istream is_01(0);
std::istream is_02(&isbuf_02);
std::ios_base::iostate state1, state2, statefail;
statefail = std::ios_base::failbit;
// template<_CharT, _Traits>
// basic_istream& operator>>(istream&, _CharT*)
int n = 20;
char array1[n];
typedef std::ios::traits_type ctraits_type;
// testing with width() control enabled.
is_02.width(8);
state1 = is_02.rdstate();
is_02 >> array1; // should snake "coltran"
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( !ctraits_type::compare(array1, "coltran", 7) );
is_02.width(1);
state1 = is_02.rdstate();
is_02 >> array1; // should snake nothing, set failbit
state2 = is_02.rdstate();
VERIFY( state1 != state2 );
VERIFY( state2 == statefail );
VERIFY( array1[0] == '\0' );
is_02.width(8);
is_02.clear();
state1 = is_02.rdstate();
VERIFY( !state1 );
is_02 >> array1; // should snake "e"
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( !ctraits_type::compare(array1, "e", 1) );
// testing for correct exception setting
const std::string str_04(" impulse!!");
std::stringbuf isbuf_03(str_04, std::ios_base::in);
std::stringbuf isbuf_04(str_04, std::ios_base::in);
std::istream is_03(&isbuf_03);
std::istream is_04(&isbuf_04);
is_03 >> array1;
VERIFY( !ctraits_type::compare(array1,"impulse!!", 10) );
VERIFY( is_03.rdstate() == std::ios_base::eofbit );
is_04.width(9);
is_04 >> array1;
VERIFY( ! std::ios::traits_type::compare(array1,"impulse!", 9) );
VERIFY( !is_04.rdstate() );
}
int main()
{
test01();
return 0;
}
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