Having fun overloading the operator->

• cs_libguarded

  10 218 5.0 C++

  Header-only library for multithreaded programming

  

https://github.com/copperspice/cs_libguarded#cslibguarded

• lock_ios

  1 3 0.0 C++

  iostream synchronization manipulator for concurrency

My lock_ios iostream manipulator is similar in the mutex aspect. This use-case works well because it's typical to write one line of output per statement, and contention is usually a corner case in logging.

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• ThreadSafeVar

  1 0 0.0 C++

  Discontinued Simple wrapper to create thread safe variable with a mutex.

About the fact of calling a function taken as a parameter I already did something similar few years ago. Note that the Core Guidelines says it is a bad idea to do it and explains why.

• Folly

  90 27,072 9.8 C++

  An open-source C++ library developed and used at Facebook.

  

Facebook's folly library has had it as well, since at least 2014 if not earlier, although it's now deprecated in favor of named functions.

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