| // Copyright 2017 The Abseil Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "absl/types/optional.h" |
| |
| #ifndef ABSL_HAVE_STD_OPTIONAL |
| namespace absl { |
| |
| nullopt_t::init_t nullopt_t::init; |
| extern const nullopt_t nullopt{nullopt_t::init}; |
| |
| } // namespace absl |
| #endif // ABSL_HAVE_STD_OPTIONAL |
