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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [18_support/] [numeric_limits/] [traps.cc] - Rev 19
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// { dg-options "-mieee" { target alpha*-*-* } } // { dg-options "-mieee" { target sh*-*-* } } // Copyright (C) 2005 Free Software Foundation // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 2, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING. If not, write to the Free // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, // USA. // 18.2.1.1 template class numeric_limits #include <limits> #include <testsuite_hooks.h> template<typename T> void test_traps(T r = T(0)) { typedef T value_type; volatile value_type i(5); volatile value_type j(0); if (!std::numeric_limits<value_type>::traps) r = i / j; } // libstdc++/22203 int main() { test_traps<int>(); test_traps<unsigned int>(); test_traps<long>(); test_traps<unsigned long>(); test_traps<long long>(); test_traps<unsigned long long>(); /* For floating points, trapping is a different, more complicated story. If is_iecxxx is true, then division by zero would not trap (infinity). If is_iecxxx is false, we don't know (VAX may trap for 0/0 -- I have to check). For most cases (i.e. IEE-754), trapping for floating points have to do with whether there is a support for signaling NaN. - Gaby. */ // test_traps<float>(); // test_traps<double>(); // test_traps<long double>(); return 0; }