| // 981208 bkoz test functionality of basic_stringbuf for char_type == char |
| |
| // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
| // 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| #include <sstream> |
| #include <testsuite_hooks.h> |
| |
| std::string str_01("mykonos. . . or what?"); |
| std::stringbuf strb_01(str_01); |
| |
| // test overloaded virtual functions |
| void test04() |
| { |
| bool test __attribute__((unused)) = true; |
| std::string str_tmp; |
| std::streamsize strmsz_1, strmsz_2; |
| typedef std::stringbuf::int_type int_type; |
| typedef std::stringbuf::traits_type traits_type; |
| typedef std::stringbuf::pos_type pos_type; |
| typedef std::stringbuf::off_type off_type; |
| |
| int_type c1 = strb_01.sbumpc(); |
| int_type c2, c3; |
| |
| // BUFFER MANAGEMENT & POSITIONING |
| |
| // seekoff |
| // pubseekoff(off_type off, ios_base::seekdir way, ios_base::openmode which) |
| // alters the stream position to off |
| pos_type pt_1(off_type(-1)); |
| pos_type pt_2(off_type(0)); |
| off_type off_1 = 0; |
| off_type off_2 = 0; |
| strb_01.str(str_01); //in|out ("mykonos. . . or what?"); |
| |
| //IN|OUT |
| //beg |
| pt_1 = strb_01.pubseekoff(2, std::ios_base::beg); |
| off_1 = off_type(pt_1); |
| VERIFY( off_1 >= 0 ); |
| c1 = strb_01.snextc(); //current in pointer +1 |
| VERIFY( c1 == 'o' ); |
| c2 = strb_01.sputc('x'); //test current out pointer |
| str_tmp = std::string("myxonos. . . or what?"); |
| VERIFY( strb_01.str() == str_tmp ); |
| //cur |
| pt_1 = strb_01.pubseekoff(2, std::ios_base::cur); |
| off_1 = off_type(pt_1); |
| VERIFY( off_1 == -1 ); // can't seekoff for in and out + cur in sstreams |
| pt_1 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in); |
| off_1 = off_type(pt_1); |
| pt_2 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in); |
| off_2 = off_type(pt_2); |
| VERIFY( off_2 == off_1 + 2 ); |
| c1 = strb_01.snextc(); //current in pointer + 1 |
| VERIFY( c1 == ' ' ); |
| c2 = strb_01.sputc('x'); //test current out pointer |
| str_tmp = std::string("myxxnos. . . or what?"); |
| VERIFY( strb_01.str() == str_tmp ); |
| //end |
| pt_2 = strb_01.pubseekoff(2, std::ios_base::end); |
| off_1 = off_type(pt_2); |
| VERIFY( off_1 == -1 ); // not a valid position |
| VERIFY( strb_01.str() == str_tmp ); |
| // end part two (from the filebuf tests) |
| strb_01.pubseekoff(0, std::ios_base::end); |
| strmsz_1 = strb_01.in_avail(); // 0 cuz at the end |
| c1 = strb_01.sgetc(); |
| c2 = strb_01.sungetc(); |
| strmsz_2 = strb_01.in_avail(); // 1 |
| c3 = strb_01.sgetc(); |
| VERIFY( c1 != c2 ); |
| VERIFY( strmsz_2 != strmsz_1 ); |
| VERIFY( strmsz_2 == 1 ); |
| // end part three |
| strmsz_1 = strb_01.str().size(); |
| strmsz_2 = strb_01.sputn(" ravi shankar meets carlos santana in LoHa", 90); |
| strb_01.pubseekoff(0, std::ios_base::end); |
| strb_01.sputc('<'); |
| str_tmp = strb_01.str(); |
| VERIFY(static_cast<std::streamsize>(str_tmp.size()) == strmsz_1 + strmsz_2 + 1); |
| // IN |
| // OUT |
| } |
| |
| int main() |
| { |
| test04(); |
| return 0; |
| } |
| |
| |
| |
| // more candy!!! |