1// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> 2 3// Copyright (C) 2001-2015 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// 27.8.1.4 Overridden virtual functions 21 22#include <streambuf> 23#include <locale> 24#include <cstring> 25#include <testsuite_hooks.h> 26 27class MyTraits : public std::char_traits<char> 28{ 29public: 30 static bool eq(char c1, char c2) 31 { 32 bool test __attribute__((unused)) = true; 33 VERIFY( c1 != 'X' ); 34 VERIFY( c2 != 'X' ); 35 return std::char_traits<char>::eq(c1, c2); 36 } 37}; 38 39class MyBuf : public std::basic_streambuf<char, MyTraits> 40{ 41 char buffer[8]; 42 43public: 44 MyBuf() 45 { 46 std::memset(buffer, 'X', sizeof(buffer)); 47 std::memset(buffer + 2, 'f', 4); 48 setg(buffer + 2, buffer + 2, buffer + 6); 49 } 50}; 51 52// libstdc++/9538 53void test08() 54{ 55 bool test __attribute__((unused)) = true; 56 57 MyBuf mb; 58 mb.sputbackc('a'); 59} 60 61int main() 62{ 63 test08(); 64 return 0; 65} 66