libcxx/src/optional.cpp

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