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comparison libstdc++-v3/testsuite/26_numerics/reduce/constexpr.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 compile { target c++2a } }
20
21 #include <functional>
22 #include <numeric>
23
24 constexpr bool
25 test01()
26 {
27 int x[5] = {1,2,3,4,5};
28 auto sum = std::reduce(x, x+5);
29 return sum == 15;
30 }
31
32 static_assert(test01());
33
34 constexpr bool
35 test02()
36 {
37 int x[5] = {1,2,3,4,5};
38 auto sum = std::reduce(x, x+5, 0);
39 return sum == 15;
40 }
41
42 static_assert(test02());
43
44 constexpr bool
45 test03()
46 {
47 int x[5] = {1,2,3,4,5};
48 auto prod = std::reduce(x, x+5, 1, std::multiplies{});
49 return prod == 120;
50 }
51
52 static_assert(test03());