Abseil Common Libraries (C++) (grcp 依赖)
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55 lines
1.8 KiB
55 lines
1.8 KiB
// Copyright 2017 The Abseil Authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// https://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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// ----------------------------------------------------------------------------- |
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// File: seed_gen_exception.h |
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// ----------------------------------------------------------------------------- |
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// |
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// This header defines an exception class which may be thrown if unpredictable |
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// events prevent the derivation of suitable seed-material for constructing a |
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// bit generator conforming to [rand.req.urng] (eg. entropy cannot be read from |
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// /dev/urandom on a Unix-based system). |
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// |
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// Note: if exceptions are disabled, `std::terminate()` is called instead. |
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#ifndef ABSL_RANDOM_SEED_GEN_EXCEPTION_H_ |
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#define ABSL_RANDOM_SEED_GEN_EXCEPTION_H_ |
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#include <exception> |
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#include "absl/base/config.h" |
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namespace absl { |
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ABSL_NAMESPACE_BEGIN |
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//------------------------------------------------------------------------------ |
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// SeedGenException |
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//------------------------------------------------------------------------------ |
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class SeedGenException : public std::exception { |
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public: |
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SeedGenException() = default; |
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~SeedGenException() override; |
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const char* what() const noexcept override; |
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}; |
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namespace random_internal { |
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// throw delegator |
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[[noreturn]] void ThrowSeedGenException(); |
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} // namespace random_internal |
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ABSL_NAMESPACE_END |
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} // namespace absl |
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#endif // ABSL_RANDOM_SEED_GEN_EXCEPTION_H_
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