1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 
11 // template<class In>
12 // concept indirectly_readable;
13 
14 #include <iterator>
15 
16 #include <concepts>
17 #include <memory>
18 #include <optional>
19 
20 #include "../incrementable.h"
21 
22 static_assert(std::incrementable<int>);
23 static_assert(std::incrementable<int*>);
24 static_assert(std::incrementable<int**>);
25 
26 static_assert(!std::incrementable<postfix_increment_returns_void>);
27 static_assert(!std::incrementable<postfix_increment_returns_copy>);
28 static_assert(!std::incrementable<has_integral_minus>);
29 static_assert(!std::incrementable<has_distinct_difference_type_and_minus>);
30 static_assert(!std::incrementable<missing_difference_type>);
31 static_assert(!std::incrementable<floating_difference_type>);
32 static_assert(!std::incrementable<non_const_minus>);
33 static_assert(!std::incrementable<non_integral_minus>);
34 static_assert(!std::incrementable<bad_difference_type_good_minus>);
35 static_assert(!std::incrementable<not_default_initializable>);
36 static_assert(!std::incrementable<not_movable>);
37 static_assert(!std::incrementable<preinc_not_declared>);
38 static_assert(!std::incrementable<postinc_not_declared>);
39 static_assert(std::incrementable<incrementable_with_difference_type>);
40 static_assert(std::incrementable<incrementable_without_difference_type>);
41 static_assert(std::incrementable<difference_type_and_void_minus>);
42 static_assert(!std::incrementable<noncopyable_with_difference_type>);
43 static_assert(!std::incrementable<noncopyable_without_difference_type>);
44 static_assert(!std::incrementable<noncopyable_with_difference_type_and_minus>);
45