45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
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/*
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* Copyright (C) 2021 The Android Open Source Project
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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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* http://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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#pragma once
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#include <error/expected_utils.h>
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#include <utils/Errors.h>
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namespace android {
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namespace error {
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/**
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* A convenience short-hand for base::expected, where the error type is a status_t.
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*/
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template <typename T>
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using Result = base::expected<T, status_t>;
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} // namespace error
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} // namespace android
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// Below are the implementations of errorIsOk and errorToString for status_t .
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// This allows status_t to be used in conjunction with the expected_utils.h macros.
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// Unfortuantely, since status_t is merely a typedef for int rather than a unique type, we have to
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// overload these methods for any int, and do so in the global namespace for ADL to work.
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inline bool errorIsOk(int status) {
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return status == android::OK;
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}
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inline std::string errorToString(int status) {
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return android::statusToString(status);
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}
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