1 // { dg-add-options ieee } 2 3 // 1999-08-23 bkoz 4 5 // Copyright (C) 1999-2016 Free Software Foundation, Inc. 6 // 7 // This file is part of the GNU ISO C++ Library. This library is free 8 // software; you can redistribute it and/or modify it under the 9 // terms of the GNU General Public License as published by the 10 // Free Software Foundation; either version 3, or (at your option) 11 // any later version. 12 13 // This library is distributed in the hope that it will be useful, 14 // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 // GNU General Public License for more details. 17 18 // You should have received a copy of the GNU General Public License along 19 // with this library; see the file COPYING3. If not see 20 // <http://www.gnu.org/licenses/>. 21 22 // 18.2.1.1 template class numeric_limits 23 24 #include <limits> 25 #include <limits.h> 26 #include <float.h> 27 #include <cwchar> 28 #include <testsuite_hooks.h> 29 30 #ifdef __CHAR_UNSIGNED__ 31 #define char_is_signed false 32 #else 33 #define char_is_signed true 34 #endif 35 test_sign()36void test_sign() 37 { 38 bool test __attribute__((unused)) = true; 39 VERIFY( std::numeric_limits<char>::is_signed == char_is_signed ); 40 VERIFY( std::numeric_limits<signed char>::is_signed == true ); 41 VERIFY( std::numeric_limits<unsigned char>::is_signed == false ); 42 VERIFY( std::numeric_limits<short>::is_signed == true ); 43 VERIFY( std::numeric_limits<unsigned short>::is_signed == false ); 44 VERIFY( std::numeric_limits<int>::is_signed == true ); 45 VERIFY( std::numeric_limits<unsigned>::is_signed == false ); 46 VERIFY( std::numeric_limits<long>::is_signed == true ); 47 VERIFY( std::numeric_limits<unsigned long>::is_signed == false ); 48 VERIFY( std::numeric_limits<float>::is_signed == true ); 49 VERIFY( std::numeric_limits<double>::is_signed == true ); 50 VERIFY( std::numeric_limits<long double>::is_signed == true ); 51 } 52 main()53int main() 54 { 55 test_sign(); 56 57 return 0; 58 } 59