00001 // Copyright 2017 The Abseil Authors. 00002 // 00003 // Licensed under the Apache License, Version 2.0 (the "License"); 00004 // you may not use this file except in compliance with the License. 00005 // You may obtain a copy of the License at 00006 // 00007 // https://www.apache.org/licenses/LICENSE-2.0 00008 // 00009 // Unless required by applicable law or agreed to in writing, software 00010 // distributed under the License is distributed on an "AS IS" BASIS, 00011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00012 // See the License for the specific language governing permissions and 00013 // limitations under the License. 00014 00015 #ifndef ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_ 00016 #define ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_ 00017 00018 namespace absl { 00019 namespace debugging_internal { 00020 00021 // Return whether the byte at *addr is readable, without faulting. 00022 // Save and restores errno. 00023 bool AddressIsReadable(const void *addr); 00024 00025 } // namespace debugging_internal 00026 } // namespace absl 00027 00028 #endif // ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_