| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 10 | |
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| 11 | // template<class In> |
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| 12 | // concept std::weakly_incrementable; |
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| 13 | |
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| 14 | #include <iterator> |
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| 15 | |
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| 16 | #include <concepts> |
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| 17 | #include <memory> |
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| 18 | #include <optional> |
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| 19 | |
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| 20 | #include "../incrementable.h" |
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| 21 | |
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| 22 | static_assert(std::weakly_incrementable<int>); |
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| 23 | static_assert(std::weakly_incrementable<int*>); |
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| 24 | static_assert(std::weakly_incrementable<int**>); |
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| 25 | static_assert(!std::weakly_incrementable<int[]>); |
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| 26 | static_assert(!std::weakly_incrementable<int[10]>); |
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| 27 | static_assert(!std::weakly_incrementable<double>); |
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| 28 | static_assert(!std::weakly_incrementable<int&>); |
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| 29 | static_assert(!std::weakly_incrementable<int()>); |
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| 30 | static_assert(!std::weakly_incrementable<int (*)()>); |
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| 31 | static_assert(!std::weakly_incrementable<int (&)()>); |
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| 32 | static_assert(!std::weakly_incrementable<bool>); |
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| 33 | |
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| 34 | struct S {}; |
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| 35 | static_assert(!std::weakly_incrementable<int S::*>); |
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| 36 | |
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| 37 | #define CHECK_POINTER_TO_MEMBER_FUNCTIONS(qualifier) \ |
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| 38 | static_assert(!std::weakly_incrementable<int (S::*)() qualifier>); \ |
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| 39 | static_assert(!std::weakly_incrementable<int (S::*)() qualifier noexcept>); \ |
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| 40 | static_assert(!std::weakly_incrementable<int (S::*)() qualifier&>); \ |
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| 41 | static_assert(!std::weakly_incrementable<int (S::*)() qualifier & noexcept>); \ |
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| 42 | static_assert(!std::weakly_incrementable<int (S::*)() qualifier&&>); \ |
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| 43 | static_assert(!std::weakly_incrementable < int (S::*)() qualifier&& noexcept >); |
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| 44 | |
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| 45 | #define NO_QUALIFIER |
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| 46 | CHECK_POINTER_TO_MEMBER_FUNCTIONS(NO_QUALIFIER); |
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| 47 | CHECK_POINTER_TO_MEMBER_FUNCTIONS(const); |
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| 48 | CHECK_POINTER_TO_MEMBER_FUNCTIONS(volatile); |
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| 49 | CHECK_POINTER_TO_MEMBER_FUNCTIONS(const volatile); |
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| 50 | |
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| 51 | static_assert(std::weakly_incrementable<postfix_increment_returns_void>); |
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| 52 | static_assert(std::weakly_incrementable<postfix_increment_returns_copy>); |
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| 53 | static_assert(std::weakly_incrementable<has_integral_minus>); |
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| 54 | static_assert(std::weakly_incrementable<has_distinct_difference_type_and_minus>); |
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| 55 | static_assert(!std::weakly_incrementable<missing_difference_type>); |
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| 56 | static_assert(!std::weakly_incrementable<floating_difference_type>); |
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| 57 | static_assert(!std::weakly_incrementable<non_const_minus>); |
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| 58 | static_assert(!std::weakly_incrementable<non_integral_minus>); |
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| 59 | static_assert(!std::weakly_incrementable<bad_difference_type_good_minus>); |
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| 60 | static_assert(!std::weakly_incrementable<not_movable>); |
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| 61 | static_assert(!std::weakly_incrementable<preinc_not_declared>); |
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| 62 | static_assert(!std::weakly_incrementable<postinc_not_declared>); |
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| 63 | static_assert(std::weakly_incrementable<not_default_initializable>); |
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| 64 | static_assert(std::weakly_incrementable<incrementable_with_difference_type>); |
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| 65 | static_assert(std::weakly_incrementable<incrementable_without_difference_type>); |
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| 66 | static_assert(std::weakly_incrementable<difference_type_and_void_minus>); |
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| 67 | static_assert(std::weakly_incrementable<noncopyable_with_difference_type>); |
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| 68 | static_assert(std::weakly_incrementable<noncopyable_without_difference_type>); |
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| 69 | static_assert(std::weakly_incrementable<noncopyable_with_difference_type_and_minus>); |
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| 70 | |
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