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()36 void 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()53 int main()
54 {
55   test_sign();
56 
57   return 0;
58 }
59