libcxx/src/optional.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 #include <__availability>
  10 #include <optional>
  11 #include <stdexcept>
  12
  13 namespace std
  14 {
  15
  16 bad_optional_access::~bad_optional_access() noexcept = default;
  17
  18 const char* bad_optional_access::what() const noexcept {
  19   return "bad_optional_access";
  20 }
  21
  22 } // std
  23
  24
  25 #include <experimental/__config>
  26
  27 //  Preserve std::experimental::bad_optional_access for ABI compatibility
  28 //  Even though it no longer exists in a header file
  29 _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL
  30
  31 class _LIBCPP_EXPORTED_FROM_ABI _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS bad_optional_access
  32   : public std::logic_error
  33 {
  34 public:
  35   bad_optional_access() : std::logic_error("Bad optional Access") {}
  36
  37   // Get the key function ~bad_optional_access() into the dylib
  38   virtual ~bad_optional_access() noexcept;
  39 };
  40
  41 bad_optional_access::~bad_optional_access() noexcept = default;
  42
  43 _LIBCPP_END_NAMESPACE_EXPERIMENTAL