1// 1999-10-11 bkoz 2 3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 4// Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 3, or (at your option) 10// any later version. 11 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING3. If not see 19// <http://www.gnu.org/licenses/>. 20 21 22// 27.5.2 template class basic_streambuf 23 24#include <streambuf> 25#include <cstring> 26#include <testsuite_hooks.h> 27 28class testbuf : public std::streambuf 29{ 30public: 31 32 // Typedefs: 33 typedef std::streambuf::traits_type traits_type; 34 typedef std::streambuf::char_type char_type; 35 36 testbuf(): std::streambuf() 37 { } 38 39 bool 40 check_pointers() 41 { 42 bool test __attribute__((unused)) = true; 43 VERIFY( this->eback() == NULL ); 44 VERIFY( this->gptr() == NULL ); 45 VERIFY( this->egptr() == NULL ); 46 VERIFY( this->pbase() == NULL ); 47 VERIFY( this->pptr() == NULL ); 48 VERIFY( this->epptr() == NULL ); 49 return test; 50 } 51 52 int_type 53 pub_uflow() 54 { return (this->uflow()); } 55 56 int_type 57 pub_overflow(int_type __c = traits_type::eof()) 58 { return (this->overflow(__c)); } 59 60 int_type 61 pub_pbackfail(int_type __c) 62 { return (this->pbackfail(__c)); } 63 64 void 65 pub_setg(char* beg, char* cur, char *end) 66 { this->setg(beg, cur, end); } 67 68 void 69 pub_setp(char* beg, char* end) 70 { this->setp(beg, end); } 71 72protected: 73 int_type 74 underflow() 75 { 76 int_type __retval = traits_type::eof(); 77 if (this->gptr() < this->egptr()) 78 __retval = traits_type::not_eof(0); 79 return __retval; 80 } 81}; 82 83void test01() 84{ 85 typedef testbuf::traits_type traits_type; 86 typedef testbuf::int_type int_type; 87 88 bool test __attribute__((unused)) = true; 89 testbuf buf01; 90 91 // sputn/xsputn 92 char lit02[] = "isotope 217: the unstable molecule on thrill jockey"; 93 const int i02 = std::strlen(lit02); 94 95 char carray[i02 + 1]; 96 std::memset(carray, 0, i02 + 1); 97 98 buf01.pub_setp(carray, (carray + i02)); 99 buf01.sputn(lit02, 0); 100 VERIFY( carray[0] == 0 ); 101 VERIFY( lit02[0] == 'i' ); 102 buf01.sputn(lit02, 1); 103 VERIFY( lit02[0] == carray[0] ); 104 VERIFY( lit02[1] == 's' ); 105 VERIFY( carray[1] == 0 ); 106 buf01.sputn(lit02 + 1, 10); 107 VERIFY( std::memcmp(lit02, carray, 10) == 0 ); 108 buf01.sputn(lit02 + 11, 20); 109 VERIFY( std::memcmp(lit02, carray, 30) == 0 ); 110} 111 112int main() 113{ 114 test01(); 115 return 0; 116} 117