| // 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 <testsuite_hooks.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; |
| } |