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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 <algorithm> | |
22 | #include <testsuite_hooks.h> | |
23 | #include <testsuite_iterators.h> | |
24 | ||
25 | using __gnu_test::test_container; | |
26 | using __gnu_test::test_range; | |
27 | using __gnu_test::input_iterator_wrapper; | |
28 | using __gnu_test::forward_iterator_wrapper; | |
29 | ||
30 | namespace ranges = std::ranges; | |
31 | ||
32 | struct X { int i; }; | |
33 | ||
34 | struct XLess | |
35 | { | |
36 | int val; | |
37 | bool operator()(X& x) const { return x.i < val; } | |
38 | }; | |
39 | ||
40 | struct ILess | |
41 | { | |
42 | int val; | |
43 | bool operator()(int& i) const { return i < val; } | |
44 | }; | |
45 | ||
46 | template<typename T> | |
47 | struct NotZero | |
48 | { | |
49 | bool operator()(T& t) const { return t != 0; } | |
50 | }; | |
51 | ||
52 | void | |
53 | test01() | |
54 | { | |
55 | X x[] = { {2}, {4}, {6}, {8}, {10}, {11} }; | |
56 | ||
57 | VERIFY( !ranges::none_of(x, x+6, XLess{3}) ); | |
58 | VERIFY( !ranges::none_of(x, x+6, ILess{3}, &X::i) ); | |
59 | VERIFY( ranges::none_of(x+1, x+6, XLess{3}) ); | |
60 | VERIFY( ranges::none_of(x+1, x+6, ILess{3}, &X::i) ); | |
61 | VERIFY( !ranges::none_of(x, XLess{5}) ); | |
62 | VERIFY( !ranges::none_of(x, ILess{5}, &X::i) ); | |
63 | ||
64 | test_container<X, forward_iterator_wrapper> c(x); | |
65 | VERIFY( !ranges::none_of(c, NotZero<int>{}, &X::i) ); | |
66 | ||
67 | test_range<X, input_iterator_wrapper> r(x); | |
68 | VERIFY( !ranges::none_of(r, NotZero<int>{}, &X::i) ); | |
69 | VERIFY( !ranges::none_of(r, NotZero<X* const>{}, [](X& x) { return &x; }) ); | |
70 | } | |
71 | ||
72 | struct Y { int i; int j; }; | |
73 | ||
74 | void | |
75 | test02() | |
76 | { | |
77 | static constexpr Y y[] = { {1,2}, {2,4}, {3,6} }; | |
78 | static_assert(!ranges::none_of(y, [](int i) { return i%2 == 0; }, &Y::i)); | |
79 | static_assert(!ranges::none_of(y, [](const Y& y) { return y.i + y.j == 3; })); | |
80 | static_assert(ranges::none_of(y, [](const Y& y) { return y.i == y.j; })); | |
81 | } | |
82 | ||
83 | int | |
84 | main() | |
85 | { | |
86 | test01(); | |
87 | test02(); | |
88 | } |