libcxx/test/std/containers/unord/unord.map/equal_range_const.transparent.pass.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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <unordered_map>
  10
  11 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
  12 //           class Alloc = allocator<pair<const Key, T>>>
  13 // class unordered_map
  14
  15 // template <typename K>
  16 // pair<const_iterator, const_iterator> equal_range(const K& k) const;
  17
  18 // UNSUPPORTED: c++03, c++11, c++14, c++17
  19
  20 #include <unordered_map>
  21
  22 #include "test_transparent_unordered.h"
  23
  24 int main(int, char**)
  25 {
  26     using key_type = StoredType<int>;
  27     using ilist_type = std::initializer_list<std::pair<const key_type, int> >;
  28
  29     {
  30       // Make sure conversions don't happen for transparent non-final hasher and key_equal
  31       using map_type = const unord_map_type<std::unordered_map, transparent_hash,
  32                                        std::equal_to<> >;
  33       test_transparent_equal_range<map_type>(ilist_type{{1, 2}, {2, 3}});
  34     }
  35
  36     {
  37       // Make sure conversions don't happen for transparent final hasher and key_equal
  38       using map_type = const unord_map_type<std::unordered_map, transparent_hash_final,
  39                                        transparent_equal_final>;
  40       test_transparent_equal_range<map_type>(ilist_type{{1, 2}, {2, 3}});
  41     }
  42
  43     {
  44       // Make sure conversions do happen for non-transparent hasher
  45       using map_type = const unord_map_type<std::unordered_map, non_transparent_hash,
  46                                        std::equal_to<> >;
  47       test_non_transparent_equal_range<map_type>(ilist_type{{1, 2}, {2, 3}});
  48     }
  49
  50     {
  51       // Make sure conversions do happen for non-transparent key_equal
  52       using map_type = const unord_map_type<std::unordered_map, transparent_hash,
  53                                        std::equal_to<key_type> >;
  54       test_non_transparent_equal_range<map_type>(ilist_type{{1, 2}, {2, 3}});
  55     }
  56
  57     {
  58       // Make sure conversions do happen for both non-transparent hasher and key_equal
  59       using map_type = const unord_map_type<std::unordered_map, non_transparent_hash,
  60                                        std::equal_to<key_type> >;
  61       test_non_transparent_equal_range<map_type>(ilist_type{{1, 2}, {2, 3}});
  62     }
  63
  64     return 0;
  65 }