1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// Copyright (C) 2020-2021 Free Software Foundation, Inc.
//
// 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 3, 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 COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=gnu++2a" }
// { dg-do compile { target c++2a } }
#include <functional>
#include <numeric>
constexpr bool
test01()
{
int x[5] = {1,2,3,4,5};
int y[5] = {2,4,6,8,10};
auto ret = std::transform_reduce(x, x+5, y, 0);
return ret == 110;
}
static_assert(test01());
constexpr bool
test02()
{
int x[5] = {1,2,3,4,5};
int y[5] = {2,4,6,8,10};
auto ret = std::transform_reduce(x, x+5, y, 1,
std::multiplies{}, std::plus{});
return ret == 3*6*9*12*15;
}
static_assert(test02());
constexpr bool
test03()
{
int x[5] = {1,2,3,4,5};
auto ret = std::transform_reduce(x, x+5, 0, std::plus{}, std::negate{});
return ret == -15;
}
static_assert(test03());
|