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jlechner |
// Copyright (C) 2004 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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// 27.6.1.3 unformatted input functions
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#include <cwchar> // for wcslen
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#include <istream>
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#include <testsuite_hooks.h>
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class Inbuf : public std::wstreambuf
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{
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static const wchar_t buf[];
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const wchar_t* current;
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int size;
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public:
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Inbuf()
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{
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current = buf;
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size = std::wcslen(buf);
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}
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int_type underflow()
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{
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if (current < buf + size)
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return traits_type::to_int_type(*current);
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return traits_type::eof();
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}
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int_type uflow()
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{
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if (current < buf + size)
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return traits_type::to_int_type(*current++);
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return traits_type::eof();
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}
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};
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const wchar_t Inbuf::buf[] = L"1234567890abcdefghij";
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void test01()
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{
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using namespace std;
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bool test __attribute__((unused)) = true;
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typedef char_traits<wchar_t> traits_type;
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Inbuf inbuf1;
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wistream is(&inbuf1);
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wchar_t buffer[10];
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traits_type::assign(buffer, sizeof(buffer) / sizeof(wchar_t), L'X');
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is.getline(buffer, sizeof(buffer) / sizeof(wchar_t), L'0');
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VERIFY( is.rdstate() == ios_base::goodbit );
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VERIFY( !traits_type::compare(buffer, L"123456789\0",
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sizeof(buffer) / sizeof(wchar_t)) );
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VERIFY( is.gcount() == 10 );
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is.clear();
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traits_type::assign(buffer, sizeof(buffer) / sizeof(wchar_t), L'X');
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is.getline(buffer, sizeof(buffer) / sizeof(wchar_t));
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VERIFY( is.rdstate() == ios_base::failbit );
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VERIFY( !traits_type::compare(buffer, L"abcdefghi\0",
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sizeof(buffer) / sizeof(wchar_t)) );
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VERIFY( is.gcount() == 9 );
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is.clear();
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traits_type::assign(buffer, sizeof(buffer) / sizeof(wchar_t), L'X');
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is.getline(buffer, sizeof(buffer) / sizeof(wchar_t));
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VERIFY( is.rdstate() == ios_base::eofbit );
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VERIFY( !traits_type::compare(buffer, L"j\0XXXXXXXX",
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sizeof(buffer) / sizeof(wchar_t)) );
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VERIFY( is.gcount() == 1 );
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is.clear();
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traits_type::assign(buffer, sizeof(buffer) / sizeof(wchar_t), L'X');
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is.getline(buffer, sizeof(buffer) / sizeof(wchar_t));
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VERIFY( is.rdstate() == (ios_base::eofbit | ios_base::failbit) );
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VERIFY( !traits_type::compare(buffer, L"\0XXXXXXXXX",
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sizeof(buffer) / sizeof(wchar_t)) );
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VERIFY( is.gcount() == 0 );
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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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