1// 1999-08-11 bkoz 2 3// Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 2, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING. If not, write to the Free 18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19// USA. 20 21// 27.6.1.3 unformatted input functions 22 23#include <cstring> // for strlen 24#include <istream> 25#include <sstream> 26#include <testsuite_hooks.h> 27 28// [patch] bits/istream.tcc - getline(char_type*,streamsize,char_type) 29// http://gcc.gnu.org/ml/libstdc++/2000-07/msg00003.html 30void 31test05() 32{ 33 const char* charray = "\n" 34"a\n" 35"aa\n" 36"aaa\n" 37"aaaa\n" 38"aaaaa\n" 39"aaaaaa\n" 40"aaaaaaa\n" 41"aaaaaaaa\n" 42"aaaaaaaaa\n" 43"aaaaaaaaaa\n" 44"aaaaaaaaaaa\n" 45"aaaaaaaaaaaa\n" 46"aaaaaaaaaaaaa\n" 47"aaaaaaaaaaaaaa\n"; 48 49 bool test __attribute__((unused)) = true; 50 const std::streamsize it = 5; 51 std::streamsize br = 0; 52 char tmp[it]; 53 std::stringbuf sb(charray, std::ios_base::in); 54 std::istream ifs(&sb); 55 std::streamsize blen = std::strlen(charray); 56 VERIFY(!(!ifs)); 57 while(ifs.getline(tmp, it) || ifs.gcount()) 58 { 59 br += ifs.gcount(); 60 if(ifs.eof()) 61 { 62 // Just sanity checks to make sure we've extracted the same 63 // number of chars that were in the streambuf 64 VERIFY(br == blen); 65 // Also, we should only set the failbit if we could 66 // _extract_ no chars from the stream, i.e. the first read 67 // returned EOF. 68 VERIFY(ifs.fail() && ifs.gcount() == 0); 69 } 70 else if(ifs.fail()) 71 { 72 // delimiter not read 73 // 74 // either 75 // -> extracted no characters 76 // or 77 // -> n - 1 characters are stored 78 ifs.clear(ifs.rdstate() & ~std::ios::failbit); 79 VERIFY((ifs.gcount() == 0) || (std::strlen(tmp) == it - 1)); 80 VERIFY(!(!ifs)); 81 continue; 82 } 83 else 84 { 85 // delimiter was read. 86 // 87 // -> strlen(__s) < n - 1 88 // -> delimiter was seen -> gcount() > strlen(__s) 89 VERIFY(ifs.gcount() == static_cast<std::streamsize>(std::strlen(tmp) + 1) ); 90 continue; 91 } 92 } 93} 94 95int 96main() 97{ 98 test05(); 99 return 0; 100} 101