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author | Abseil Team <absl-team@google.com> | 2018-04-20T16·16-0700 |
---|---|---|
committer | Jon Cohen <cohenjon@google.com> | 2018-04-20T16·30-0400 |
commit | faf0a1b90374eab44e8956973b0e13febdcf3377 (patch) | |
tree | 63a7fd12a50b15c4a321e8373c1bbd975df0b7ba /absl/types/bad_optional_access.h | |
parent | 5b535401665cc6aa96d54a5c9b0901153d97210f (diff) |
- 551e205ef49682a1cb7e6e0cda46957fbcf88edd Release absl::variant. by Xiaoyi Zhang <zhangxy@google.com>
- 01c52f640594d073c6e54c47e7853b25522cf085 Update comments in absl::variant (and minor changes to ab... by Tom Manshreck <shreck@google.com> - 064465e1e6b158abd8c38fd1942b4fc464b57d6a Documentation change. by Abseil Team <absl-team@google.com> - 58df2c8a27e80c9ea21d87c1acee8019246377c9 Relocates SetCountdown and UnsetCountdown to the exceptio... by Abseil Team <absl-team@google.com> - fd9d248d0948d472f2543f7fd9c0ae4a1cd60d01 Clarify thread_annotation.h documentation around local va... by Abseil Team <absl-team@google.com> - 0d0abaf7f0945ac5f2c5f49e78afe1b326d5aca0 Typo fix in comments. by Abseil Team <absl-team@google.com> - 67286d587cbd07508a81e5b8147c245a5b5538b4 Internal change. by Xiaoyi Zhang <zhangxy@google.com> GitOrigin-RevId: 551e205ef49682a1cb7e6e0cda46957fbcf88edd Change-Id: I1a343b080187293cb5f892a309618b5712e7aa14
Diffstat (limited to 'absl/types/bad_optional_access.h')
-rw-r--r-- | absl/types/bad_optional_access.h | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/absl/types/bad_optional_access.h b/absl/types/bad_optional_access.h index c4c74447d493..e9aa8b83eda1 100644 --- a/absl/types/bad_optional_access.h +++ b/absl/types/bad_optional_access.h @@ -1,4 +1,4 @@ -// Copyright 2017 The Abseil Authors. +// Copyright 2018 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. @@ -11,6 +11,12 @@ // 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. +// +// ----------------------------------------------------------------------------- +// bad_optional_access.h +// ----------------------------------------------------------------------------- +// +// This header file defines the `absl::bad_optional_access` type. #ifndef ABSL_TYPES_BAD_OPTIONAL_ACCESS_H_ #define ABSL_TYPES_BAD_OPTIONAL_ACCESS_H_ @@ -19,6 +25,23 @@ namespace absl { +// ----------------------------------------------------------------------------- +// bad_optional_access +// ----------------------------------------------------------------------------- +// +// An `absl::bad_optional_access` type is an exception type that is thrown when +// attempting to access an `absl::optional` object that does not contain a +// value. +// +// Example: +// +// absl::optional<int> o; +// +// try { +// int n = o.value(); +// } catch(const absl::bad_optional_access& e) { +// std::cout << "Bad optional access: " << e.what() << '\n'; +// } class bad_optional_access : public std::exception { public: bad_optional_access() = default; |