77 lines
2.2 KiB
C++
77 lines
2.2 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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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// <deque>
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// template <class T, class Allocator, class U>
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// typename deque<T, Allocator>::size_type
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// erase(deque<T, Allocator>& c, const U& value);
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#include <deque>
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#include <optional>
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#include "test_macros.h"
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#include "test_allocator.h"
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#include "min_allocator.h"
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template <class S, class U>
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void test0(S s, U val, S expected, size_t expected_erased_count) {
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ASSERT_SAME_TYPE(typename S::size_type, decltype(std::erase(s, val)));
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assert(expected_erased_count == std::erase(s, val));
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assert(s == expected);
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}
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template <class S>
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void test()
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{
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test0(S(), 1, S(), 0);
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test0(S({1}), 1, S(), 1);
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test0(S({1}), 2, S({1}), 0);
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test0(S({1, 2}), 1, S({2}), 1);
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test0(S({1, 2}), 2, S({1}), 1);
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test0(S({1, 2}), 3, S({1, 2}), 0);
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test0(S({1, 1}), 1, S(), 2);
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test0(S({1, 1}), 3, S({1, 1}), 0);
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test0(S({1, 2, 3}), 1, S({2, 3}), 1);
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test0(S({1, 2, 3}), 2, S({1, 3}), 1);
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test0(S({1, 2, 3}), 3, S({1, 2}), 1);
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test0(S({1, 2, 3}), 4, S({1, 2, 3}), 0);
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test0(S({1, 1, 1}), 1, S(), 3);
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test0(S({1, 1, 1}), 2, S({1, 1, 1}), 0);
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test0(S({1, 1, 2}), 1, S({2}), 2);
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test0(S({1, 1, 2}), 2, S({1, 1}), 1);
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test0(S({1, 1, 2}), 3, S({1, 1, 2}), 0);
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test0(S({1, 2, 2}), 1, S({2, 2}), 1);
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test0(S({1, 2, 2}), 2, S({1}), 2);
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test0(S({1, 2, 2}), 3, S({1, 2, 2}), 0);
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// Test cross-type erasure
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using opt = std::optional<typename S::value_type>;
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test0(S({1, 2, 1}), opt(), S({1, 2, 1}), 0);
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test0(S({1, 2, 1}), opt(1), S({2}), 2);
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test0(S({1, 2, 1}), opt(2), S({1, 1}), 1);
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test0(S({1, 2, 1}), opt(3), S({1, 2, 1}), 0);
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}
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int main(int, char**)
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{
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test<std::deque<int>>();
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test<std::deque<int, min_allocator<int>>> ();
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test<std::deque<int, test_allocator<int>>> ();
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test<std::deque<long>>();
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test<std::deque<double>>();
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return 0;
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}
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