xref: /aosp_15_r20/external/abseil-cpp/absl/base/internal/strerror.h (revision 9356374a3709195abf420251b3e825997ff56c0f)
1*9356374aSAndroid Build Coastguard Worker // Copyright 2020 The Abseil Authors.
2*9356374aSAndroid Build Coastguard Worker //
3*9356374aSAndroid Build Coastguard Worker // Licensed under the Apache License, Version 2.0 (the "License");
4*9356374aSAndroid Build Coastguard Worker // you may not use this file except in compliance with the License.
5*9356374aSAndroid Build Coastguard Worker // You may obtain a copy of the License at
6*9356374aSAndroid Build Coastguard Worker //
7*9356374aSAndroid Build Coastguard Worker //      https://www.apache.org/licenses/LICENSE-2.0
8*9356374aSAndroid Build Coastguard Worker //
9*9356374aSAndroid Build Coastguard Worker // Unless required by applicable law or agreed to in writing, software
10*9356374aSAndroid Build Coastguard Worker // distributed under the License is distributed on an "AS IS" BASIS,
11*9356374aSAndroid Build Coastguard Worker // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12*9356374aSAndroid Build Coastguard Worker // See the License for the specific language governing permissions and
13*9356374aSAndroid Build Coastguard Worker // limitations under the License.
14*9356374aSAndroid Build Coastguard Worker 
15*9356374aSAndroid Build Coastguard Worker #ifndef ABSL_BASE_INTERNAL_STRERROR_H_
16*9356374aSAndroid Build Coastguard Worker #define ABSL_BASE_INTERNAL_STRERROR_H_
17*9356374aSAndroid Build Coastguard Worker 
18*9356374aSAndroid Build Coastguard Worker #include <string>
19*9356374aSAndroid Build Coastguard Worker 
20*9356374aSAndroid Build Coastguard Worker #include "absl/base/config.h"
21*9356374aSAndroid Build Coastguard Worker 
22*9356374aSAndroid Build Coastguard Worker namespace absl {
23*9356374aSAndroid Build Coastguard Worker ABSL_NAMESPACE_BEGIN
24*9356374aSAndroid Build Coastguard Worker namespace base_internal {
25*9356374aSAndroid Build Coastguard Worker 
26*9356374aSAndroid Build Coastguard Worker // A portable and thread-safe alternative to C89's `strerror`.
27*9356374aSAndroid Build Coastguard Worker //
28*9356374aSAndroid Build Coastguard Worker // The C89 specification of `strerror` is not suitable for use in a
29*9356374aSAndroid Build Coastguard Worker // multi-threaded application as the returned string may be changed by calls to
30*9356374aSAndroid Build Coastguard Worker // `strerror` from another thread.  The many non-stdlib alternatives differ
31*9356374aSAndroid Build Coastguard Worker // enough in their names, availability, and semantics to justify this wrapper
32*9356374aSAndroid Build Coastguard Worker // around them.  `errno` will not be modified by a call to `absl::StrError`.
33*9356374aSAndroid Build Coastguard Worker std::string StrError(int errnum);
34*9356374aSAndroid Build Coastguard Worker 
35*9356374aSAndroid Build Coastguard Worker }  // namespace base_internal
36*9356374aSAndroid Build Coastguard Worker ABSL_NAMESPACE_END
37*9356374aSAndroid Build Coastguard Worker }  // namespace absl
38*9356374aSAndroid Build Coastguard Worker 
39*9356374aSAndroid Build Coastguard Worker #endif  // ABSL_BASE_INTERNAL_STRERROR_H_
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