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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/25_algorithms/find_first_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 X x
[] = { {2}, {2}, {6}, {8}, {10}, {11} };
38 int y
[] = { 2, 7, 8, 9 };
39 X w
[] = { {2}, {7}, {8}, {9} };
41 auto res
= ranges::find_first_of(x
, x
+6, y
+1, y
+4, {}, &X::i
);
43 res
= ranges::find_first_of(x
, x
+6, w
, w
+4, {}, &X::i
, &X::i
);
45 res
= ranges::find_first_of(x
, x
+6, y
+3, y
+4, {}, &X::i
);
48 test_container
<X
, forward_iterator_wrapper
> c(x
);
49 test_container
<int, forward_iterator_wrapper
> d1(y
+1, y
+4);
50 auto res2
= ranges::find_first_of(c
, d1
, {}, &X::i
);
51 VERIFY( res2
!= ranges::end(c
) && res2
->i
== 8 );
53 test_container
<X
, forward_iterator_wrapper
> d2(w
+3, w
+4);
54 res2
= ranges::find_first_of(c
, d2
, {}, &X::i
, &X::i
);
55 VERIFY( res2
== ranges::end(c
) );
57 test_range
<X
, input_iterator_wrapper
> r(x
);
58 test_range
<int, forward_iterator_wrapper
> s1(y
+1, y
+4);
59 auto res3
= ranges::find_first_of(r
, s1
, {}, &X::i
);
60 VERIFY( res3
!= ranges::end(r
) && res3
->i
== 8 );
62 test_range
<X
, forward_iterator_wrapper
> s2(w
+3, w
+4);
64 res3
= ranges::find_first_of(r
, s2
, {}, &X::i
, &X::i
);
65 VERIFY( res3
== ranges::end(r
) );
68 struct Y
{ int i
; int j
; };
73 static constexpr Y y
[] = { {1,2}, {2,4}, {3,6} };
74 static_assert(ranges::find_first_of(y
, y
, {}, &Y::j
, &Y::i
) == y
);
75 static_assert(ranges::find_first_of(y
, y
, {}, &Y::i
, &Y::j
) == y
+1);