87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
// 2001-06-05 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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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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#include <fstream>
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#include <iostream>
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#include <testsuite_hooks.h>
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class gnu_filebuf: public std::filebuf
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{
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int i;
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public:
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gnu_filebuf(int j = 1): i(j) { }
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~gnu_filebuf() { --i; }
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int get_i() { return i;}
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};
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const int initial = 4;
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gnu_filebuf buf(initial);
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// libstdc++/3045, in a vague way.
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void test01()
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{
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bool test __attribute__((unused)) = true;
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int k1;
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// 1 normal
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k1 = buf.get_i();
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VERIFY( k1 == initial );
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{
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std::cout.rdbuf(&buf);
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}
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k1 = buf.get_i();
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VERIFY( k1 == initial );
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// 2 syncd off
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k1 = buf.get_i();
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VERIFY( k1 == initial );
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{
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std::cout.rdbuf(&buf);
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std::ios_base::sync_with_stdio(false); // make sure doesn't clobber buf
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}
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k1 = buf.get_i();
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VERIFY( k1 == initial );
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// 3 callling init
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k1 = buf.get_i();
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VERIFY( k1 == initial );
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{
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std::cout.rdbuf(&buf);
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std::ios_base::Init make_sure_initialized;
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}
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k1 = buf.get_i();
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VERIFY( k1 == initial );
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}
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int main()
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{
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test01();
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return 0;
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}
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