89 lines
2.4 KiB
C++
89 lines
2.4 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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#include <testsuite_io.h>
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// @require@ %-*.tst %-*.txt
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// @diff@ %-*.tst %*.txt
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const char name_01[] = "sgetc.txt"; // file with data in it
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const char name_03[] = "tmp_sgetc_1io.tst"; // empty file, need to create
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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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using namespace __gnu_test;
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typedef std::filebuf::int_type int_type;
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typedef filebuf::traits_type traits_type;
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bool test __attribute__((unused)) = true;
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int_type c1, c2, c3;
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// int_type sgetc()
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// if read_cur not avail, return uflow(), else return *read_cur
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// in | out 1
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{
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constraint_filebuf fb_03; // in | out
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fb_03.open(name_03, ios::out | ios::in | ios::trunc);
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VERIFY( !fb_03.write_position() );
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VERIFY( !fb_03.read_position() );
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c1 = fb_03.sgetc();
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c2 = fb_03.sbumpc();
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VERIFY( c1 == traits_type::eof() );
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VERIFY( c1 == c2 );
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VERIFY( !fb_03.write_position() );
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VERIFY( !fb_03.read_position() );
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}
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// in | out 2
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{
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constraint_filebuf fb_01; // in
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fb_01.open(name_01, ios::in | ios::out);
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VERIFY( !fb_01.write_position() );
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c1 = fb_01.sgetc();
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VERIFY( c1 == '/' );
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c2 = fb_01.sgetc();
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VERIFY( c1 == c2 );
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fb_01.sbumpc();
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c1 = fb_01.sbumpc();
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c2 = fb_01.sgetc();
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c3 = fb_01.sgetc();
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VERIFY( c1 == '/' );
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VERIFY( c2 == ' ' );
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VERIFY( c3 == ' ' );
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VERIFY( !fb_01.write_position() );
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VERIFY( fb_01.read_position() );
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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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