address_is_readable.h 1.1 KB

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  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. #ifndef ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_
  15. #define ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_
  16. #include "absl/base/config.h"
  17. namespace absl {
  18. ABSL_NAMESPACE_BEGIN
  19. namespace debugging_internal {
  20. // Return whether the byte at *addr is readable, without faulting.
  21. // Save and restores errno.
  22. bool AddressIsReadable(const void *addr);
  23. } // namespace debugging_internal
  24. ABSL_NAMESPACE_END
  25. } // namespace absl
  26. #endif // ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_