230 lines
6.3 KiB
C++
230 lines
6.3 KiB
C++
// 1999-07-26 bkoz
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// Copyright (C) 1999 Free Software Foundation
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// 27.6.1.2.3 character extractors
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#include <istream>
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#include <sstream>
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#include <testsuite_hooks.h>
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bool test01() {
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bool test = true;
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std::string str_01;
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const std::string str_02("coltrane playing 'softly as a morning sunrise'");
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const std::string str_03("coltrane");
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std::stringbuf isbuf_01(std::ios_base::in);
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std::stringbuf isbuf_02(str_02, std::ios_base::in);
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std::istream is_01(NULL);
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std::istream is_02(&isbuf_02);
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std::ios_base::iostate state1, state2, statefail;
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statefail = std::ios_base::failbit;
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// template<_CharT, _Traits>
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// basic_istream& operator>>(istream&, _CharT*)
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int n = 20;
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char array1[n];
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typedef std::ios::traits_type ctraits_type;
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ctraits_type::int_type i1, i2;
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state1 = is_01.rdstate();
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i1 = ctraits_type::length(array1);
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is_01 >> array1; // should snake 0 characters, not alter stream state
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i2 = ctraits_type::length(array1);
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state2 = is_01.rdstate();
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VERIFY( i1 == i2 );
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VERIFY( state1 != state2 );
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VERIFY( static_cast<bool>(state2 & statefail) );
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state1 = is_02.rdstate();
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is_02 >> array1; // should snake "coltrane"
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state2 = is_02.rdstate();
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VERIFY( state1 == state2 );
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VERIFY( !static_cast<bool>(state2 & statefail) );
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VERIFY( array1[str_03.size() - 1] == 'e' );
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array1[str_03.size()] = '\0';
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VERIFY( !str_03.compare(0, str_03.size(), array1) );
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std::istream::int_type int1 = is_02.peek(); // should be ' '
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VERIFY( int1 == ' ' );
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state1 = is_02.rdstate();
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is_02 >> array1; // should snake "playing" as sentry "eats" ws
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state2 = is_02.rdstate();
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int1 = is_02.peek(); // should be ' '
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VERIFY( int1 == ' ' );
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VERIFY( state1 == state2 );
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VERIFY( !static_cast<bool>(state2 & statefail) );
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// template<_CharT, _Traits>
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// basic_istream& operator>>(istream&, unsigned char*)
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unsigned char array2[n];
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state1 = is_02.rdstate();
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is_02 >> array2; // should snake 'softly
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state2 = is_02.rdstate();
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VERIFY( state1 == state2 );
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VERIFY( !static_cast<bool>(state2 & statefail) );
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VERIFY( array2[0] == '\'' );
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VERIFY( array2[1] == 's' );
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VERIFY( array2[6] == 'y' );
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int1 = is_02.peek(); // should be ' '
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VERIFY( int1 == ' ' );
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// template<_CharT, _Traits>
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// basic_istream& operator>>(istream&, signed char*)
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signed char array3[n];
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state1 = is_02.rdstate();
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is_02 >> array3; // should snake "as"
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state2 = is_02.rdstate();
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VERIFY( state1 == state2 );
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VERIFY( !static_cast<bool>(state2 & statefail) );
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VERIFY( array3[0] == 'a' );
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VERIFY( array3[1] == 's' );
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int1 = is_02.peek(); // should be ' '
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VERIFY( int1 == ' ' );
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// testing with width() control enabled.
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is_02.width(8);
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state1 = is_02.rdstate();
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is_02 >> array1; // should snake a
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state2 = is_02.rdstate();
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VERIFY( state1 == state2 );
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VERIFY( !ctraits_type::compare(array1, "a", 2) );
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is_02.width(1);
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state1 = is_02.rdstate();
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is_02 >> array1; // should snake nothing, set failbit
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state2 = is_02.rdstate();
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VERIFY( state1 != state2 );
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VERIFY( state2 == statefail );
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VERIFY( array1[0] == '\0' );
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is_02.width(8);
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is_02.clear();
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state1 = is_02.rdstate();
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VERIFY( !state1 );
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is_02 >> array1; // should snake "morning"
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state2 = is_02.rdstate();
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VERIFY( state1 == state2 );
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VERIFY( !ctraits_type::compare(array1, "morning", 8) );
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// testing for correct exception setting
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const std::string str_04(" impulse!!");
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std::stringbuf isbuf_03(str_04, std::ios_base::in);
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std::stringbuf isbuf_04(str_04, std::ios_base::in);
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std::istream is_03(&isbuf_03);
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std::istream is_04(&isbuf_04);
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is_03 >> array1;
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VERIFY( !ctraits_type::compare(array1,"impulse!!", 10) );
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VERIFY( is_03.rdstate() == std::ios_base::eofbit );
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is_04.width(9);
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is_04 >> array1;
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VERIFY( ! std::ios::traits_type::compare(array1,"impulse!", 9) );
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VERIFY( !is_04.rdstate() );
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#ifdef DEBUG_ASSERT
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assert(test);
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#endif
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return test;
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}
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bool test02() {
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typedef std::ios::traits_type ctraits_type;
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bool test = true;
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std::string str_01;
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const std::string str_02("or coltrane playing tunji with jimmy garrison");
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const std::string str_03("coltrane");
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std::stringbuf isbuf_01(std::ios_base::in);
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std::stringbuf isbuf_02(str_02, std::ios_base::in);
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std::istream is_01(NULL);
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std::istream is_02(&isbuf_02);
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std::ios_base::iostate state1, state2, statefail;
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statefail = std::ios_base::failbit;
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// template<_CharT, _Traits>
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// basic_istream& operator>>(istream&, _CharT&)
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char c1 = 'c', c2 = 'c';
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state1 = is_01.rdstate();
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is_01 >> c1;
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state2 = is_01.rdstate();
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VERIFY( state1 != state2 );
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VERIFY( c1 == c2 );
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VERIFY( static_cast<bool>(state2 & statefail) );
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state1 = is_02.rdstate();
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is_02 >> c1;
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state2 = is_02.rdstate();
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VERIFY( state1 == state2 );
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VERIFY( c1 == 'o' );
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is_02 >> c1;
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is_02 >> c1;
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VERIFY( c1 == 'c' );
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VERIFY( !static_cast<bool>(state2 & statefail) );
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// template<_CharT, _Traits>
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// basic_istream& operator>>(istream&, unsigned char&)
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unsigned char uc1 = 'c';
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state1 = is_02.rdstate();
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is_02 >> uc1;
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state2 = is_02.rdstate();
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VERIFY( state1 == state2 );
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VERIFY( uc1 == 'o' );
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is_02 >> uc1;
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is_02 >> uc1;
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VERIFY( uc1 == 't' );
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// template<_CharT, _Traits>
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// basic_istream& operator>>(istream&, signed char&)
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signed char sc1 = 'c';
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state1 = is_02.rdstate();
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is_02 >> sc1;
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state2 = is_02.rdstate();
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VERIFY( state1 == state2 );
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VERIFY( sc1 == 'r' );
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is_02 >> sc1;
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is_02 >> sc1;
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VERIFY( sc1 == 'n' );
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#ifdef DEBUG_ASSERT
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assert(test);
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#endif
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return test;
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}
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int main()
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{
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test01();
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test02();
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return 0;
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}
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