67 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: c++0310 11// <unordered_set>12 13// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,14// class Alloc = allocator<Value>>15// class unordered_multiset16 17// template <class... Args>18// iterator emplace_hint(const_iterator p, Args&&... args);19 20#include <unordered_set>21#include <cassert>22 23#include "test_macros.h"24#include "../../Emplaceable.h"25#include "min_allocator.h"26 27int main(int, char**) {28 {29 typedef std::unordered_multiset<Emplaceable> C;30 typedef C::iterator R;31 C c;32 C::const_iterator e = c.end();33 R r = c.emplace_hint(e);34 assert(c.size() == 1);35 assert(*r == Emplaceable());36 37 r = c.emplace_hint(c.end(), Emplaceable(5, 6));38 assert(c.size() == 2);39 assert(*r == Emplaceable(5, 6));40 41 r = c.emplace_hint(r, 5, 6);42 assert(c.size() == 3);43 assert(*r == Emplaceable(5, 6));44 }45 {46 typedef std::47 unordered_multiset<Emplaceable, std::hash<Emplaceable>, std::equal_to<Emplaceable>, min_allocator<Emplaceable>>48 C;49 typedef C::iterator R;50 C c;51 C::const_iterator e = c.end();52 R r = c.emplace_hint(e);53 assert(c.size() == 1);54 assert(*r == Emplaceable());55 56 r = c.emplace_hint(c.end(), Emplaceable(5, 6));57 assert(c.size() == 2);58 assert(*r == Emplaceable(5, 6));59 60 r = c.emplace_hint(r, 5, 6);61 assert(c.size() == 3);62 assert(*r == Emplaceable(5, 6));63 }64 65 return 0;66}67