erase.pass.cpp
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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++98, c++03, c++11, c++14, c++17
// <deque>
// template <class T, class Allocator, class U>
// void 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)
{
ASSERT_SAME_TYPE(void, decltype(std::erase(s, val)));
std::erase(s, val);
assert(s == expected);
}
template <class S>
void test()
{
test0(S(), 1, S());
test0(S({1}), 1, S());
test0(S({1}), 2, S({1}));
test0(S({1,2}), 1, S({2}));
test0(S({1,2}), 2, S({1}));
test0(S({1,2}), 3, S({1,2}));
test0(S({1,1}), 1, S());
test0(S({1,1}), 3, S({1,1}));
test0(S({1,2,3}), 1, S({2,3}));
test0(S({1,2,3}), 2, S({1,3}));
test0(S({1,2,3}), 3, S({1,2}));
test0(S({1,2,3}), 4, S({1,2,3}));
test0(S({1,1,1}), 1, S());
test0(S({1,1,1}), 2, S({1,1,1}));
test0(S({1,1,2}), 1, S({2}));
test0(S({1,1,2}), 2, S({1,1}));
test0(S({1,1,2}), 3, S({1,1,2}));
test0(S({1,2,2}), 1, S({2,2}));
test0(S({1,2,2}), 2, S({1}));
test0(S({1,2,2}), 3, S({1,2,2}));
// Test cross-type erasure
using opt = std::optional<typename S::value_type>;
test0(S({1,2,1}), opt(), S({1,2,1}));
test0(S({1,2,1}), opt(1), S({2}));
test0(S({1,2,1}), opt(2), S({1,1}));
test0(S({1,2,1}), opt(3), S({1,2,1}));
}
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;
}