| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| |
| // <deque> |
| |
| // template <class T, class Allocator, class U> |
| // typename deque<T, Allocator>::size_type |
| // erase(deque<T, Allocator>& c, const U& value); |
| |
| #include <deque> |
| #include <optional> |
| |
| #include "test_macros.h" |
| #include "test_allocator.h" |
| #include "min_allocator.h" |
| |
| template <class S, class U> |
| void test0(S s, U val, S expected, std::size_t expected_erased_count) { |
| ASSERT_SAME_TYPE(typename S::size_type, decltype(std::erase(s, val))); |
| assert(expected_erased_count == std::erase(s, val)); |
| assert(s == expected); |
| } |
| |
| template <class S> |
| void test() |
| { |
| test0(S(), 1, S(), 0); |
| |
| test0(S({1}), 1, S(), 1); |
| test0(S({1}), 2, S({1}), 0); |
| |
| test0(S({1, 2}), 1, S({2}), 1); |
| test0(S({1, 2}), 2, S({1}), 1); |
| test0(S({1, 2}), 3, S({1, 2}), 0); |
| test0(S({1, 1}), 1, S(), 2); |
| test0(S({1, 1}), 3, S({1, 1}), 0); |
| |
| test0(S({1, 2, 3}), 1, S({2, 3}), 1); |
| test0(S({1, 2, 3}), 2, S({1, 3}), 1); |
| test0(S({1, 2, 3}), 3, S({1, 2}), 1); |
| test0(S({1, 2, 3}), 4, S({1, 2, 3}), 0); |
| |
| test0(S({1, 1, 1}), 1, S(), 3); |
| test0(S({1, 1, 1}), 2, S({1, 1, 1}), 0); |
| test0(S({1, 1, 2}), 1, S({2}), 2); |
| test0(S({1, 1, 2}), 2, S({1, 1}), 1); |
| test0(S({1, 1, 2}), 3, S({1, 1, 2}), 0); |
| test0(S({1, 2, 2}), 1, S({2, 2}), 1); |
| test0(S({1, 2, 2}), 2, S({1}), 2); |
| test0(S({1, 2, 2}), 3, S({1, 2, 2}), 0); |
| |
| // Test cross-type erasure |
| using opt = std::optional<typename S::value_type>; |
| test0(S({1, 2, 1}), opt(), S({1, 2, 1}), 0); |
| test0(S({1, 2, 1}), opt(1), S({2}), 2); |
| test0(S({1, 2, 1}), opt(2), S({1, 1}), 1); |
| test0(S({1, 2, 1}), opt(3), S({1, 2, 1}), 0); |
| } |
| |
| int main(int, char**) |
| { |
| test<std::deque<int>>(); |
| test<std::deque<int, min_allocator<int>>> (); |
| test<std::deque<int, test_allocator<int>>> (); |
| |
| test<std::deque<long>>(); |
| test<std::deque<double>>(); |
| |
| return 0; |
| } |