1// 1999-10-14 bkoz 2 3// Copyright (C) 1999, 2001, 2003 Free Software Foundation, Inc. 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// As a special exception, you may use this file as part of a free software 22// library without restriction. Specifically, if other files instantiate 23// templates or use macros or inline functions from this file, or you compile 24// this file and link it with other files to produce an executable, this 25// file does not by itself cause the resulting executable to be covered by 26// the GNU General Public License. This exception does not however 27// invalidate any other reasons why the executable file might be covered by 28// the GNU General Public License. 29 30// 27.6.1.1.2 class basic_istream::sentry 31 32#include <istream> 33#include <sstream> 34#include <testsuite_hooks.h> 35 36void test01() 37{ 38 bool test __attribute__((unused)) = true; 39 const char* lit01 = "stereolab on the bolsinga tip"; 40 const std::string str01(lit01); 41 42 std::stringbuf strbuf01; 43 std::stringbuf strbuf02(str01); 44 std::istream istr01(&strbuf01); 45 std::istream istr02(&strbuf02); 46 47 // test negatives 48 std::istream::sentry sentry01(istr01); 49 VERIFY( bool(sentry01) == false ); 50 51 std::istream::sentry sentry02(istr01, true); 52 VERIFY( bool(sentry02) == false ); 53 54 // positive tests 55 std::istream::sentry sentry03(istr02); 56 VERIFY( bool(sentry03) == true ); 57 58 std::istream::sentry sentry04(istr02, true); 59 VERIFY( bool(sentry04) == true ); 60} 61 62int main() 63{ 64 test01(); 65 return 0; 66} 67