1// Copyright (C) 2004 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 2, 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 COPYING. If not, write to the Free 16// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 17// USA. 18 19// As a special exception, you may use this file as part of a free software 20// library without restriction. Specifically, if other files instantiate 21// templates or use macros or inline functions from this file, or you compile 22// this file and link it with other files to produce an executable, this 23// file does not by itself cause the resulting executable to be covered by 24// the GNU General Public License. This exception does not however 25// invalidate any other reasons why the executable file might be covered by 26// the GNU General Public License. 27 28// 27.5.2 template class basic_streambuf 29 30#include <cstring> 31#include <cwchar> 32#include <streambuf> 33#include <sstream> 34#include <ostream> 35#include <testsuite_hooks.h> 36 37// libstdc++/9424 38class Outbuf_2 : public std::wstreambuf 39{ 40 wchar_t buf[1]; 41 42public: 43 Outbuf_2() 44 { 45 setp(buf, buf + 1); 46 } 47 48 int_type overflow(int_type c) 49 { 50 int_type eof = traits_type::eof(); 51 52 if (pptr() < epptr()) 53 { 54 if (traits_type::eq_int_type(c, eof)) 55 return traits_type::not_eof(c); 56 57 *pptr() = traits_type::to_char_type(c); 58 pbump(1); 59 return c; 60 } 61 62 return eof; 63 } 64}; 65 66class Inbuf_2 : public std::wstreambuf 67{ 68 static const wchar_t buf[]; 69 const wchar_t* current; 70 int size; 71 72public: 73 Inbuf_2() 74 { 75 current = buf; 76 size = std::wcslen(buf); 77 } 78 79 int_type underflow() 80 { 81 if (current < buf + size) 82 return traits_type::to_int_type(*current); 83 return traits_type::eof(); 84 } 85 86 int_type uflow() 87 { 88 if (current < buf + size) 89 return traits_type::to_int_type(*current++); 90 return traits_type::eof(); 91 } 92}; 93 94const wchar_t Inbuf_2::buf[] = L"Atteivlis"; 95 96void test11() 97{ 98 bool test __attribute__((unused)) = true; 99 100 Inbuf_2 inbuf1; 101 std::wistream is(&inbuf1); 102 Outbuf_2 outbuf1; 103 is >> &outbuf1; 104 VERIFY( inbuf1.sgetc() == L't' ); 105 VERIFY( is.good() ); 106} 107 108int main() 109{ 110 test11(); 111 return 0; 112} 113