91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com>
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// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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// USA.
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// 27.8.1.4 Overridden virtual functions
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// { dg-require-fileio "" }
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#include <fstream>
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#include <testsuite_hooks.h>
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class testbuf : public std::filebuf
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{
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public:
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// Typedefs:
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typedef std::filebuf base_type;
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typedef base_type::traits_type traits_type;
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typedef base_type::char_type char_type;
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testbuf(): base_type()
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{ _M_mode = (std::ios_base::in | std::ios_base::out); }
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bool
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check_pointers()
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{
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bool test __attribute__((unused)) = true;
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test = (this->pbase() == NULL);
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test &= (this->pptr() == NULL);
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return test;
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}
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};
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const char name_01[] = "filebuf_virtuals-1.txt";
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// Test overloaded virtual functions.
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void test05()
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{
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using namespace std;
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typedef std::filebuf::int_type int_type;
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typedef std::filebuf::traits_type traits_type;
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typedef std::filebuf::pos_type pos_type;
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typedef std::filebuf::off_type off_type;
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typedef size_t size_type;
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bool test __attribute__((unused)) = true;
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{
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testbuf f_tmp;
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// setbuf
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// pubsetbuf(char_type* s, streamsize n)
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f_tmp.pubsetbuf(0,0);
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VERIFY( f_tmp.check_pointers() );
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}
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{
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testbuf f_tmp;
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f_tmp.open(name_01, ios_base::out | ios_base::in);
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f_tmp.sbumpc();
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// setbuf
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// pubsetbuf(char_type* s, streamsize n)
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f_tmp.pubsetbuf(0, 0);
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VERIFY( f_tmp.check_pointers() );
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}
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}
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int main()
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{
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test05();
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return 0;
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}
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