| // 1999-08-11 bkoz |
| |
| // Copyright (C) 1999, 2000, 2001, 2002, 2003 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 27.6.1.3 unformatted input functions |
| |
| #include <cstring> // for strlen |
| #include <istream> |
| #include <sstream> |
| #include <testsuite_hooks.h> |
| |
| // [patch] bits/istream.tcc - getline(char_type*,streamsize,char_type) |
| // http://gcc.gnu.org/ml/libstdc++/2000-07/msg00003.html |
| void |
| test05() |
| { |
| const char* charray = "\n" |
| "a\n" |
| "aa\n" |
| "aaa\n" |
| "aaaa\n" |
| "aaaaa\n" |
| "aaaaaa\n" |
| "aaaaaaa\n" |
| "aaaaaaaa\n" |
| "aaaaaaaaa\n" |
| "aaaaaaaaaa\n" |
| "aaaaaaaaaaa\n" |
| "aaaaaaaaaaaa\n" |
| "aaaaaaaaaaaaa\n" |
| "aaaaaaaaaaaaaa\n"; |
| |
| bool test __attribute__((unused)) = true; |
| const std::streamsize it = 5; |
| std::streamsize br = 0; |
| char tmp[it]; |
| std::stringbuf sb(charray, std::ios_base::in); |
| std::istream ifs(&sb); |
| std::streamsize blen = std::strlen(charray); |
| VERIFY(!(!ifs)); |
| while(ifs.getline(tmp, it) || ifs.gcount()) |
| { |
| br += ifs.gcount(); |
| if(ifs.eof()) |
| { |
| // Just sanity checks to make sure we've extracted the same |
| // number of chars that were in the streambuf |
| VERIFY(br == blen); |
| // Also, we should only set the failbit if we could |
| // _extract_ no chars from the stream, i.e. the first read |
| // returned EOF. |
| VERIFY(ifs.fail() && ifs.gcount() == 0); |
| } |
| else if(ifs.fail()) |
| { |
| // delimiter not read |
| // |
| // either |
| // -> extracted no characters |
| // or |
| // -> n - 1 characters are stored |
| ifs.clear(ifs.rdstate() & ~std::ios::failbit); |
| VERIFY((ifs.gcount() == 0) || (std::strlen(tmp) == it - 1)); |
| VERIFY(!(!ifs)); |
| continue; |
| } |
| else |
| { |
| // delimiter was read. |
| // |
| // -> strlen(__s) < n - 1 |
| // -> delimiter was seen -> gcount() > strlen(__s) |
| VERIFY(ifs.gcount() == static_cast<std::streamsize>(std::strlen(tmp) + 1) ); |
| continue; |
| } |
| } |
| } |
| |
| int |
| main() |
| { |
| test05(); |
| return 0; |
| } |