libcxx/test/std/containers/unord/unord.set/find_non_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_set>
  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_set
  14
  15 // template <typename K>
  16 // iterator find(const K& k);
  17
  18 // UNSUPPORTED: c++03, c++11, c++14, c++17
  19
  20 #include <unordered_set>
  21
  22 #include "test_transparent_unordered.h"
  23
  24 int main(int, char**)
  25 {
  26     using key_type = StoredType<int>;
  27
  28     {
  29       // Make sure conversions don't happen for transparent non-final hasher and key_equal
  30       using set_type = unord_set_type<std::unordered_set, transparent_hash,
  31                                  std::equal_to<> >;
  32       test_transparent_find<set_type>(key_type{1}, key_type{2});
  33     }
  34
  35     {
  36       // Make sure conversions don't happen for transparent final hasher and key_equal
  37       using set_type = unord_set_type<std::unordered_set, transparent_hash_final,
  38                                  transparent_equal_final>;
  39       test_transparent_find<set_type>(key_type{1}, key_type{2});
  40     }
  41
  42     {
  43       // Make sure conversions do happen for non-transparent hasher
  44       using set_type = unord_set_type<std::unordered_set, non_transparent_hash,
  45                                  std::equal_to<> >;
  46       test_non_transparent_find<set_type>(key_type{1}, key_type{2});
  47     }
  48
  49     {
  50       // Make sure conversions do happen for non-transparent key_equal
  51       using set_type = unord_set_type<std::unordered_set, transparent_hash,
  52                                  std::equal_to<key_type> >;
  53       test_non_transparent_find<set_type>(key_type{1}, key_type{2});
  54     }
  55
  56     {
  57       // Make sure conversions do happen for both non-transparent hasher and key_equal
  58       using set_type = unord_set_type<std::unordered_set, non_transparent_hash,
  59                                  std::equal_to<key_type> >;
  60       test_non_transparent_find<set_type>(key_type{1}, key_type{2});
  61     }
  62
  63     return 0;
  64 }