// 1999-10-11 bkoz // Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, // 2007, 2009, 2010 // Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // . // 27.5.2 template class basic_streambuf #include #include #include class testbuf : public std::streambuf { public: // Typedefs: typedef std::streambuf::traits_type traits_type; typedef std::streambuf::char_type char_type; testbuf(): std::streambuf() { } bool check_pointers() { bool test __attribute__((unused)) = true; VERIFY( !this->eback() ); VERIFY( !this->gptr() ); VERIFY( !this->egptr() ); VERIFY( !this->pbase() ); VERIFY( !this->pptr() ); VERIFY( !this->epptr() ); return test; } int_type pub_uflow() { return (this->uflow()); } int_type pub_overflow(int_type __c = traits_type::eof()) { return (this->overflow(__c)); } int_type pub_pbackfail(int_type __c) { return (this->pbackfail(__c)); } void pub_setg(char* beg, char* cur, char *end) { this->setg(beg, cur, end); } void pub_setp(char* beg, char* end) { this->setp(beg, end); } protected: int_type underflow() { int_type __retval = traits_type::eof(); if (this->gptr() < this->egptr()) __retval = traits_type::not_eof(0); return __retval; } }; void test02() { typedef testbuf::traits_type traits_type; typedef testbuf::int_type int_type; bool test __attribute__((unused)) = true; char lit01[] = "chicago underground trio/possible cube on delmark"; size_t i01 = traits_type::length(lit01); testbuf buf01; // 27.5.2.1 basic_streambuf ctors // default ctor initializes // - all pointer members to null pointers // - locale to current global locale VERIFY( buf01.check_pointers() ); VERIFY( buf01.getloc() == std::locale() ); // 27.5.2.2.5 Put area char carray01[i01]; std::memset(carray01, 0, i01); buf01.pub_setg(lit01, lit01, lit01 + i01); buf01.sgetn(carray01, 0); VERIFY( carray01[0] == 0 ); buf01.sgetn(carray01, 1); VERIFY( carray01[0] == 'c' ); buf01.sgetn(carray01 + 1, i01 - 1); VERIFY( carray01[0] == 'c' ); VERIFY( carray01[1] == 'h' ); VERIFY( carray01[i01 - 1] == 'k' ); } int main() { test02(); return 0; }