1// 1999-10-11 bkoz 2 3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2005 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 2, 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 COPYING. If not, write to the Free 19// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 20// USA. 21 22// As a special exception, you may use this file as part of a free software 23// library without restriction. Specifically, if other files instantiate 24// templates or use macros or inline functions from this file, or you compile 25// this file and link it with other files to produce an executable, this 26// file does not by itself cause the resulting executable to be covered by 27// the GNU General Public License. This exception does not however 28// invalidate any other reasons why the executable file might be covered by 29// the GNU General Public License. 30 31// 27.5.2 template class basic_streambuf 32 33#include <streambuf> 34#include <testsuite_hooks.h> 35 36class testbuf : public std::streambuf 37{ 38public: 39 40 // Typedefs: 41 typedef std::streambuf::traits_type traits_type; 42 typedef std::streambuf::char_type char_type; 43 44 testbuf(): std::streambuf() 45 { } 46 47 bool 48 check_pointers() 49 { 50 bool test __attribute__((unused)) = true; 51 VERIFY( this->eback() == NULL ); 52 VERIFY( this->gptr() == NULL ); 53 VERIFY( this->egptr() == NULL ); 54 VERIFY( this->pbase() == NULL ); 55 VERIFY( this->pptr() == NULL ); 56 VERIFY( this->epptr() == NULL ); 57 return test; 58 } 59 60 int_type 61 pub_uflow() 62 { return (this->uflow()); } 63 64 int_type 65 pub_overflow(int_type __c = traits_type::eof()) 66 { return (this->overflow(__c)); } 67 68 int_type 69 pub_pbackfail(int_type __c) 70 { return (this->pbackfail(__c)); } 71 72 void 73 pub_setg(char* beg, char* cur, char *end) 74 { this->setg(beg, cur, end); } 75 76 void 77 pub_setp(char* beg, char* end) 78 { this->setp(beg, end); } 79 80protected: 81 int_type 82 underflow() 83 { 84 int_type __retval = traits_type::eof(); 85 if (this->gptr() < this->egptr()) 86 __retval = traits_type::not_eof(0); 87 return __retval; 88 } 89}; 90 91void test01() 92{ 93 typedef testbuf::traits_type traits_type; 94 typedef testbuf::int_type int_type; 95 96 bool test __attribute__((unused)) = true; 97 testbuf buf01; 98 99 // sputn/xsputn 100 char lit02[] = "isotope 217: the unstable molecule on thrill jockey"; 101 const int i02 = std::strlen(lit02); 102 103 char carray[i02 + 1]; 104 std::memset(carray, 0, i02 + 1); 105 106 buf01.pub_setp(carray, (carray + i02)); 107 buf01.sputn(lit02, 0); 108 VERIFY( carray[0] == 0 ); 109 VERIFY( lit02[0] == 'i' ); 110 buf01.sputn(lit02, 1); 111 VERIFY( lit02[0] == carray[0] ); 112 VERIFY( lit02[1] == 's' ); 113 VERIFY( carray[1] == 0 ); 114 buf01.sputn(lit02 + 1, 10); 115 VERIFY( std::memcmp(lit02, carray, 10) == 0 ); 116 buf01.sputn(lit02 + 11, 20); 117 VERIFY( std::memcmp(lit02, carray, 30) == 0 ); 118} 119 120int main() 121{ 122 test01(); 123 return 0; 124} 125