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// 1999-07-26 bkoz
// Copyright (C) 1999 Free Software Foundation
//
// 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.
// 27.6.1.2.3 character extractors
#include <istream>
#include <sstream>
#include <debug_assert.h>
bool test01() {
bool test = true;
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(NULL);
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;
ctraits_type::int_type i1, i2;
state1 = is_01.rdstate();
i1 = ctraits_type::length(array1);
is_01 >> array1; // should snake 0 characters, not alter stream state
i2 = ctraits_type::length(array1);
state2 = is_01.rdstate();
VERIFY( i1 == i2 );
VERIFY( state1 != state2 );
VERIFY( static_cast<bool>(state2 & statefail) );
state1 = is_02.rdstate();
is_02 >> array1; // should snake "coltrane"
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( !static_cast<bool>(state2 & statefail) );
VERIFY( array1[str_03.size() - 1] == 'e' );
array1[str_03.size()] = '\0';
VERIFY( !str_03.compare(0, str_03.size(), array1) );
std::istream::int_type int1 = is_02.peek(); // should be ' '
VERIFY( int1 == ' ' );
state1 = is_02.rdstate();
is_02 >> array1; // should snake "playing" as sentry "eats" ws
state2 = is_02.rdstate();
int1 = is_02.peek(); // should be ' '
VERIFY( int1 == ' ' );
VERIFY( state1 == state2 );
VERIFY( !static_cast<bool>(state2 & statefail) );
// template<_CharT, _Traits>
// basic_istream& operator>>(istream&, unsigned char*)
unsigned char array2[n];
state1 = is_02.rdstate();
is_02 >> array2; // should snake 'softly
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( !static_cast<bool>(state2 & statefail) );
VERIFY( array2[0] == '\'' );
VERIFY( array2[1] == 's' );
VERIFY( array2[6] == 'y' );
int1 = is_02.peek(); // should be ' '
VERIFY( int1 == ' ' );
// template<_CharT, _Traits>
// basic_istream& operator>>(istream&, signed char*)
signed char array3[n];
state1 = is_02.rdstate();
is_02 >> array3; // should snake "as"
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( !static_cast<bool>(state2 & statefail) );
VERIFY( array3[0] == 'a' );
VERIFY( array3[1] == 's' );
int1 = is_02.peek(); // should be ' '
VERIFY( int1 == ' ' );
// testing with width() control enabled.
is_02.width(8);
state1 = is_02.rdstate();
is_02 >> array1; // should snake a
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( !ctraits_type::compare(array1, "a", 2) );
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 "morning"
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( !ctraits_type::compare(array1, "morning", 8) );
// 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() );
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
bool test02() {
typedef std::ios::traits_type ctraits_type;
bool test = true;
std::string str_01;
const std::string str_02("or coltrane playing tunji with jimmy garrison");
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(NULL);
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&)
char c1 = 'c', c2 = 'c';
state1 = is_01.rdstate();
is_01 >> c1;
state2 = is_01.rdstate();
VERIFY( state1 != state2 );
VERIFY( c1 == c2 );
VERIFY( static_cast<bool>(state2 & statefail) );
state1 = is_02.rdstate();
is_02 >> c1;
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( c1 == 'o' );
is_02 >> c1;
is_02 >> c1;
VERIFY( c1 == 'c' );
VERIFY( !static_cast<bool>(state2 & statefail) );
// template<_CharT, _Traits>
// basic_istream& operator>>(istream&, unsigned char&)
unsigned char uc1 = 'c';
state1 = is_02.rdstate();
is_02 >> uc1;
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( uc1 == 'o' );
is_02 >> uc1;
is_02 >> uc1;
VERIFY( uc1 == 't' );
// template<_CharT, _Traits>
// basic_istream& operator>>(istream&, signed char&)
signed char sc1 = 'c';
state1 = is_02.rdstate();
is_02 >> sc1;
state2 = is_02.rdstate();
VERIFY( state1 == state2 );
VERIFY( sc1 == 'r' );
is_02 >> sc1;
is_02 >> sc1;
VERIFY( sc1 == 'n' );
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
int main()
{
test01();
test02();
return 0;
}
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