1// 2003-05-20 Paolo Carlini <pcarlini@unitus.it> 2 3// Copyright (C) 2003-2015 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 3, 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 COPYING3. If not see 18// <http://www.gnu.org/licenses/>. 19 20// 27.8.1.3 filebuf member functions 21// @require@ %-*.tst %-*.txt 22// @diff@ %-*.tst %-*.txt 23 24// Test that upon filebuf::close() 27.8.1.1,3 is enforced. 25 26#include <fstream> 27#include <testsuite_hooks.h> 28 29const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it 30const char name_02[] = "filebuf_virtuals-2.txt"; // empty file, need to create 31 32bool overflow_called; 33bool underflow_called; 34bool uflow_called; 35 36class Close_filebuf : public std::filebuf 37{ 38public: 39 int_type overflow(int_type c) 40 { 41 overflow_called = true; 42 return std::filebuf::overflow(c); 43 } 44 45 int_type underflow() 46 { 47 underflow_called = true; 48 return std::filebuf::underflow(); 49 } 50 51 int_type uflow() 52 { 53 uflow_called = true; 54 return std::filebuf::uflow(); 55 } 56}; 57 58void test_05() 59{ 60 bool test __attribute__((unused)) = true; 61 62 Close_filebuf fb_01, fb_02; 63 char buffer[] = "xxxxxxxxxx"; 64 65 // 'in' 66 fb_01.open(name_01, std::ios_base::in); 67 fb_01.sgetc(); 68 69 fb_01.close(); 70 71 underflow_called = false; 72 fb_01.sgetc(); 73 VERIFY( underflow_called == true ); 74 75 uflow_called = false; 76 fb_01.sbumpc(); 77 VERIFY( uflow_called == true ); 78 79 uflow_called = false; 80 fb_01.snextc(); 81 VERIFY( uflow_called == true ); 82 83 uflow_called = false; 84 fb_01.sgetn(buffer, sizeof(buffer)); 85 VERIFY( uflow_called == true ); 86 87 // 'out' 88 fb_02.open(name_02, std::ios_base::out); 89 90 fb_02.close(); 91 92 overflow_called = false; 93 fb_02.sputc('T'); 94 VERIFY( overflow_called == true ); 95 96 overflow_called = false; 97 fb_02.sputn(buffer, sizeof(buffer)); 98 VERIFY( overflow_called == true ); 99} 100 101int 102main() 103{ 104 test_05(); 105 return 0; 106} 107