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2d66ab5e8e
We've been improving these the tests for vector quite a bit and we are probably not done improving our container tests. Formatting everything at once will make subsequent reviews easier.
115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef SUPPORT_FROM_RANGE_HELPERS_H
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#define SUPPORT_FROM_RANGE_HELPERS_H
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#include <array>
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#include <cstddef>
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#include <iterator>
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#include <type_traits>
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#include <vector>
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#include "min_allocator.h"
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#include "test_allocator.h"
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#include "test_iterators.h"
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#include "test_macros.h"
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#include "type_algorithms.h"
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struct Empty {};
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template <class T>
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struct InputRange {
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cpp20_input_iterator<T*> begin();
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sentinel_wrapper<cpp20_input_iterator<T*>> end();
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};
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template <class Iter, class Sent, std::ranges::input_range Range>
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constexpr auto wrap_input(Range&& input) {
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auto b = Iter(std::ranges::begin(input));
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auto e = Sent(Iter(std::ranges::end(input)));
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return std::ranges::subrange(std::move(b), std::move(e));
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}
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template <class Iter, class Sent, class T, std::size_t N>
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constexpr auto wrap_input(std::array<T, N>& input) {
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auto b = Iter(input.data());
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auto e = Sent(Iter(input.data() + input.size()));
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return std::ranges::subrange(std::move(b), std::move(e));
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}
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template <class Iter, class Sent, class T>
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constexpr auto wrap_input(std::vector<T>& input) {
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auto b = Iter(input.data());
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auto e = Sent(Iter(input.data() + input.size()));
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return std::ranges::subrange(std::move(b), std::move(e));
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}
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struct KeyValue {
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int key; // Only the key is considered for equality comparison.
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char value; // Allows distinguishing equivalent instances.
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bool operator<(const KeyValue& other) const { return key < other.key; }
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bool operator==(const KeyValue& other) const { return key == other.key; }
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};
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template <>
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struct std::hash<KeyValue> {
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std::size_t operator()(const KeyValue& kv) const { return kv.key; }
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};
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#if !defined(TEST_HAS_NO_EXCEPTIONS)
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template <class T>
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struct ThrowingAllocator {
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using value_type = T;
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using char_type = T;
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using is_always_equal = std::false_type;
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ThrowingAllocator() = default;
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template <class U>
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ThrowingAllocator(const ThrowingAllocator<U>&) {}
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T* allocate(std::size_t) { throw 1; }
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void deallocate(T*, std::size_t) {}
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template <class U>
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friend bool operator==(const ThrowingAllocator&, const ThrowingAllocator<U>&) {
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return true;
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}
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};
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#endif
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template <class T, class Func>
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constexpr void for_all_iterators_and_allocators(Func f) {
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using Iterators =
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types::type_list< cpp20_input_iterator<T*>,
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forward_iterator<T*>,
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bidirectional_iterator<T*>,
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random_access_iterator<T*>,
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contiguous_iterator<T*>,
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T* >;
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types::for_each(Iterators{}, [=]<class Iter>() {
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f.template operator()<Iter, sentinel_wrapper<Iter>, std::allocator<T>>();
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f.template operator()<Iter, sentinel_wrapper<Iter>, test_allocator<T>>();
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f.template operator()<Iter, sentinel_wrapper<Iter>, min_allocator<T>>();
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f.template operator()<Iter, sentinel_wrapper<Iter>, safe_allocator<T>>();
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if constexpr (std::sentinel_for<Iter, Iter>) {
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f.template operator()<Iter, Iter, std::allocator<T>>();
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f.template operator()<Iter, Iter, test_allocator<T>>();
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f.template operator()<Iter, Iter, min_allocator<T>>();
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f.template operator()<Iter, Iter, safe_allocator<T>>();
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}
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});
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}
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#endif // SUPPORT_FROM_RANGE_HELPERS_H
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