libcxx/test/std/containers/NotConstructible.h

   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 #ifndef NOTCONSTRUCTIBLE_H
  10 #define NOTCONSTRUCTIBLE_H
  11
  12 #include <functional>
  13
  14 class NotConstructible
  15 {
  16     NotConstructible(const NotConstructible&);
  17     NotConstructible& operator=(const NotConstructible&);
  18 public:
  19 };
  20
  21 inline
  22 bool
  23 operator==(const NotConstructible&, const NotConstructible&)
  24 {return true;}
  25
  26 namespace std
  27 {
  28
  29 template <>
  30 struct hash<NotConstructible>
  31 {
  32     typedef NotConstructible argument_type;
  33     typedef std::size_t result_type;
  34
  35     std::size_t operator()(const NotConstructible&) const {return 0;}
  36 };
  37
  38 }
  39
  40 #endif // NOTCONSTRUCTIBLE_H