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//===----------------------------------------------------------------------===//
//
// 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, c++20
// <flat_map>
// class flat_multimap
// size_type erase(const key_type& k);
#include <compare>
#include <concepts>
#include <deque>
#include <flat_map>
#include <functional>
#include <utility>
#include <vector>
#include "MinSequenceContainer.h"
#include "../helpers.h"
#include "test_macros.h"
#include "min_allocator.h"
template <class KeyContainer, class ValueContainer, class Compare = std::less<>>
void test() {
using M = std::flat_multimap<int, char, Compare, KeyContainer, ValueContainer>;
auto make = [](std::initializer_list<int> il) {
M m;
for (int i : il) {
m.emplace(i, i);
}
return m;
};
M m = make({1, 1, 2, 2, 2, 3, 4, 5, 5, 6, 7, 8, 8, 8, 8, 9});
ASSERT_SAME_TYPE(decltype(m.erase(9)), typename M::size_type);
auto n = m.erase(10);
assert(n == 0);
assert(m == make({1, 1, 2, 2, 2, 3, 4, 5, 5, 6, 7, 8, 8, 8, 8, 9}));
n = m.erase(4);
assert(n == 1);
assert(m == make({1, 1, 2, 2, 2, 3, 5, 5, 6, 7, 8, 8, 8, 8, 9}));
n = m.erase(1);
assert(n == 2);
assert(m == make({2, 2, 2, 3, 5, 5, 6, 7, 8, 8, 8, 8, 9}));
n = m.erase(8);
assert(n == 4);
assert(m == make({2, 2, 2, 3, 5, 5, 6, 7, 9}));
n = m.erase(3);
assert(n == 1);
assert(m == make({2, 2, 2, 5, 5, 6, 7, 9}));
n = m.erase(4);
assert(n == 0);
assert(m == make({2, 2, 2, 5, 5, 6, 7, 9}));
n = m.erase(6);
assert(n == 1);
assert(m == make({2, 2, 2, 5, 5, 7, 9}));
n = m.erase(7);
assert(n == 1);
assert(m == make({2, 2, 2, 5, 5, 9}));
n = m.erase(2);
assert(n == 3);
assert(m == make({5, 5, 9}));
n = m.erase(5);
assert(n == 2);
assert(m == make({9}));
n = m.erase(9);
assert(n == 1);
assert(m.empty());
n = m.erase(1);
assert(n == 0);
assert(m.empty());
}
int main(int, char**) {
test<std::vector<int>, std::vector<char>>();
test<std::vector<int>, std::vector<char>, std::greater<>>();
test<std::deque<int>, std::vector<char>>();
test<MinSequenceContainer<int>, MinSequenceContainer<char>>();
test<std::vector<int, min_allocator<int>>, std::vector<char, min_allocator<char>>>();
{
auto erase_function = [](auto& m, auto key_arg) {
using Map = std::decay_t<decltype(m)>;
using Key = typename Map::key_type;
const Key key{key_arg};
m.erase(key);
};
test_erase_exception_guarantee(erase_function);
}
return 0;
}
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