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Posted to notifications@logging.apache.org by GitBox <gi...@apache.org> on 2022/01/04 00:16:15 UTC

[GitHub] [logging-log4cxx] swebb2066 commented on pull request #96: Reduce indirection in Logger and Hiearchy implementations

swebb2066 commented on pull request #96:
URL: https://github.com/apache/logging-log4cxx/pull/96#issuecomment-1004441759


   To copy a shared_ptr the reference count must be incremented, for which a lock must be acquired.
   
   By returning a const reference, the caller can decide whether to copy the shared_ptr. The compiler will complain when the const reference is passed to a function requiring a non-const reference.


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