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comparison libstdc++-v3/testsuite/20_util/integer_comparisons/less.cc @ 152:2b5abeee2509

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update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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145:1830386684a0 152:2b5abeee2509
1 // Copyright (C) 2020 Free Software Foundation, Inc.
2 //
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
7 // any later version.
8
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
17
18 // { dg-options "-std=gnu++2a" }
19 // { dg-do run { target c++2a } }
20
21 #include <utility>
22 #include <limits>
23 #include <testsuite_hooks.h>
24
25 void
26 test01()
27 {
28 unsigned int u = std::numeric_limits<unsigned int>::max();
29 int s = -1;
30 VERIFY( std::cmp_less(s, u) );
31 VERIFY( !std::cmp_less(u, s) );
32 u = (unsigned) std::numeric_limits<int>::max() + 1U;
33 VERIFY( std::cmp_less(s, u) );
34 VERIFY( !std::cmp_less(u, s) );
35 }
36
37 constexpr bool
38 test02()
39 {
40 unsigned int u = std::numeric_limits<unsigned int>::max();
41 int s = -1;
42 if (!std::cmp_less(s, u))
43 throw 1;
44 if (std::cmp_less(u, s))
45 throw 2;
46 return true;
47 }
48
49 void
50 test03()
51 {
52 short ss = -1;
53 int s = -1;
54 VERIFY( !std::cmp_less(s, ss) );
55 VERIFY( !std::cmp_less(ss, s) );
56
57 unsigned int u = (unsigned int) -1;
58 VERIFY( std::cmp_less(s, u) );
59 VERIFY( !std::cmp_less(u, s) );
60 VERIFY( std::cmp_less(ss, u) );
61 VERIFY( !std::cmp_less(u, ss) );
62
63 unsigned long long ul = (unsigned long long) -1;
64 VERIFY( std::cmp_less(s, ul) );
65 VERIFY( !std::cmp_less(ul, s) );
66 VERIFY( std::cmp_less(ss, ul) );
67 VERIFY( !std::cmp_less(ul, ss) );
68 VERIFY( std::cmp_less(u, ul) );
69 VERIFY( !std::cmp_less(ul, u) );
70 }
71
72 int
73 main()
74 {
75 test01();
76 static_assert( test02() );
77 test03();
78 }