libcxx/test/support/read_write.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 LIBCPP_TEST_SUPPORT_READ_WRITE_H
  10 #define LIBCPP_TEST_SUPPORT_READ_WRITE_H
  11
  12 struct value_type_indirection {
  13   using value_type = int;
  14   value_type& operator*() const;
  15 };
  16
  17 struct element_type_indirection {
  18   using element_type = long;
  19   element_type& operator*() const;
  20 };
  21
  22 struct proxy_indirection {
  23   using value_type = int;
  24   value_type operator*() const;
  25 };
  26
  27 struct read_only_indirection {
  28   using value_type = int const;
  29   value_type& operator*() const;
  30 };
  31
  32 // doubles as missing_iter_reference_t
  33 struct missing_dereference {
  34   using value_type = int;
  35 };
  36
  37 #endif // LIBCPP_TEST_SUPPORT_READ_WRITE_H