1// Copyright (C) 2003-2015 Free Software Foundation, Inc. 2// 3// This file is part of the GNU ISO C++ Library. This library is free 4// software; you can redistribute it and/or modify it under the 5// terms of the GNU General Public License as published by the 6// Free Software Foundation; either version 3, or (at your option) 7// any later version. 8 9// This library is distributed in the hope that it will be useful, 10// but WITHOUT ANY WARRANTY; without even the implied warranty of 11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12// GNU General Public License for more details. 13 14// You should have received a copy of the GNU General Public License along 15// with this library; see the file COPYING3. If not see 16// <http://www.gnu.org/licenses/>. 17 18// 27.5.2.2.3 Get area 19 20// { dg-require-fileio "" } 21 22#include <fstream> 23#include <testsuite_hooks.h> 24 25class Derived_fbuf : public std::filebuf 26{ 27public: 28 const char_type* pub_egptr() const 29 { return egptr(); } 30 31 const char_type* pub_gptr() const 32 { return gptr(); } 33}; 34 35// libstdc++/9701 (in_avail) 36void test01() 37{ 38 using namespace std; 39 bool test __attribute__((unused)) = true; 40 const char* name = "tmp_file1"; 41 42 Derived_fbuf df2; 43 df2.open(name, ios_base::in | ios_base::out | ios_base::trunc); 44 45 df2.sputn("Comomoc", 7); 46 47 df2.pubseekoff(0, ios_base::beg); 48 df2.sbumpc(); 49 df2.sputbackc('t'); 50 51 VERIFY( df2.pub_gptr() < df2.pub_egptr() ); 52 VERIFY( df2.in_avail() == df2.pub_egptr() - df2.pub_gptr() ); 53} 54 55int 56main() 57{ 58 test01(); 59 return 0; 60} 61