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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/25_algorithms/none_of/constrained.cc
1 // Copyright (C) 2020-2021 Free Software Foundation, Inc.
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)
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.
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/>.
18 // { dg-options "-std=gnu++2a" }
19 // { dg-do run { target c++2a } }
22 #include <testsuite_hooks.h>
23 #include <testsuite_iterators.h>
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
;
30 namespace ranges
= std::ranges
;
37 bool operator()(X
& x
) const { return x
.i
< val
; }
43 bool operator()(int& i
) const { return i
< val
; }
49 bool operator()(T
& t
) const { return t
!= 0; }
55 X x
[] = { {2}, {4}, {6}, {8}, {10}, {11} };
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
) );
64 test_container
<X
, forward_iterator_wrapper
> c(x
);
65 VERIFY( !ranges::none_of(c
, NotZero
<int>{}, &X::i
) );
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
; }) );
72 struct Y
{ int i
; int j
; };
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
; }));