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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
// Copyright (C) 2020-2024 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-do run { target c++20 } }
#include <algorithm>
#include <vector>
#include <testsuite_hooks.h>
#include <testsuite_iterators.h>
using __gnu_test::test_container;
using __gnu_test::test_range;
using __gnu_test::input_iterator_wrapper;
using __gnu_test::output_iterator_wrapper;
namespace ranges = std::ranges;
void
test01()
{
int x[] = {1,2,3,4,5,6,7};
{
const int y[] = {2,4,6};
int w[7];
test_range<int, input_iterator_wrapper> rx(x);
test_range<int, output_iterator_wrapper> rw(w);
auto [in,out] = ranges::copy_if(rx, rw.begin(),
[] (int a) { return (a%2)==0; });
VERIFY( in == rx.end() && out.ptr == w+3 );
VERIFY( ranges::equal(w, w+3, y, y+3) );
}
{
const int y[] = {1,3,5,7};
int w[7];
test_range<int, input_iterator_wrapper> rx(x);
test_range<int, output_iterator_wrapper> rw(w);
auto [in,out] = ranges::copy_if(rx, rw.begin(),
[] (int a) { return (a%2)==0; },
[] (int a) { return a+1; });
VERIFY( in == rx.end() && out.ptr == w+4 );
VERIFY( ranges::equal(w, w+4, y, y+4) );
}
}
constexpr bool
test02()
{
int x[] = {1,2,3};
const int y[] = {1,3};
int w[3];
auto [in,out] = ranges::copy_if(x, w, [] (int a) { return (a%2)==1; });
return ranges::equal(w, out, y, y+2);
}
int
main()
{
test01();
static_assert(test02());
}
|
