text: //===----------------------------------------------------------------------===//
  //
  // 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
  
  #include <cassert>
  #include <set>
  
  // <set>
  
  // bool contains(const key_type& x) const;
  
  template <typename T, typename V, typename B, typename... Vals>
  void test(B bad, Vals... args) {
      T set;
      V vals[] = {args...};
  
      for (auto& v : vals) set.insert(v);
      for (auto& v : vals) assert(set.contains(v));
  
      assert(!set.contains(bad));
  }
  
  struct E { int a = 1; double b = 1; char c = 1; };
  
  int main(int, char**)
  {
      {
          test<std::set<int>, int>(14, 10, 11, 12, 13);
          test<std::set<char>, char>('e', 'a', 'b', 'c', 'd');
      }
      {
          test<std::multiset<int>, int>(14, 10, 11, 12, 13);
          test<std::multiset<char>, char>('e', 'a', 'b', 'c', 'd');
      }
  
      return 0;
  }
  