address_is_readable.h (1083B)
1 // Copyright 2017 The Abseil Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_ 16 #define ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_ 17 18 #include "absl/base/config.h" 19 20 namespace absl { 21 ABSL_NAMESPACE_BEGIN 22 namespace debugging_internal { 23 24 // Return whether the byte at *addr is readable, without faulting. 25 // Save and restores errno. 26 bool AddressIsReadable(const void *addr); 27 28 } // namespace debugging_internal 29 ABSL_NAMESPACE_END 30 } // namespace absl 31 32 #endif // ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_