69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
// Copyright (C) 2004, 2005, 2006, 2007 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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// 27.6.1.2.2 arithmetic extractors
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#include <istream>
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#include <sstream>
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#include <locale>
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#include <limits>
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#include <testsuite_hooks.h>
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// libstdc++/3720 part two
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void test13()
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{
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using namespace std;
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bool test __attribute__((unused)) = true;
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const wchar_t* l2 = L"1.2345678901234567890123456789012345678901234567890123456"
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L" "
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L"1246.9";
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// 1
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// used to core.
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double d;
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wistringstream iss1(l2);
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iss1 >> d;
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iss1 >> d;
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VERIFY ( d > 1246 && d < 1247 );
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// 2
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// quick test for failbit on maximum length extraction.
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int i;
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int max_digits = numeric_limits<int>::digits10 + 1;
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wstring digits;
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for (int j = 0; j < max_digits; ++j)
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digits += L'1';
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wistringstream iss2(digits);
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iss2 >> i;
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VERIFY( !iss2.fail() );
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digits += L'1';
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i = 0;
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iss2.str(digits);
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iss2.clear();
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iss2 >> i;
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VERIFY( i == 0 );
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VERIFY( iss2.fail() );
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}
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int main()
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{
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test13();
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return 0;
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}
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