75 lines
2.2 KiB
C++
75 lines
2.2 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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// XXX This test fails on sparc-solaris2 because of a bug in libc
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// XXX sscanf for very long input. See:
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// XXX http://gcc.gnu.org/ml/gcc/2002-12/msg01422.html
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// { dg-do run { xfail { { sparc*-*-solaris2* } || lax_strtofp } } }
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#include <istream>
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#include <sstream>
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#include <limits>
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#include <testsuite_hooks.h>
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// libstdc++/3720
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// excess input should not cause a core dump
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template<typename T>
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bool test12_aux(bool integer_type)
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{
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bool test __attribute__((unused)) = true;
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int digits_overflow;
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if (integer_type)
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// This many digits will overflow integer types in base 10.
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digits_overflow = std::numeric_limits<T>::digits10 + 2;
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else
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// This might do it, unsure.
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digits_overflow = std::numeric_limits<T>::max_exponent10 + 1;
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std::wstring st;
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std::wstring part = L"1234567890123456789012345678901234567890";
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for (std::size_t i = 0; i < digits_overflow / part.size() + 1; ++i)
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st += part;
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std::wstringbuf sb(st);
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std::wistream is(&sb);
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T t;
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is >> t;
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VERIFY( is.fail() );
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return test;
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}
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bool test12()
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{
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bool test __attribute__((unused)) = true;
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VERIFY( test12_aux<short>(true) );
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VERIFY( test12_aux<int>(true) );
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VERIFY( test12_aux<long>(true) );
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VERIFY( test12_aux<float>(false) );
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VERIFY( test12_aux<double>(false) );
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VERIFY( test12_aux<long double>(false) );
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return test;
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}
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int main()
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{
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test12();
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return 0;
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}
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