Bartłomiej Filipek • 8/23/2025

How to Avoid Thread-Safety Cost for Functions' static Variables

This technical article delves into the implementation and thread-safe initialization of static variables within C++ function scope. It explains the performance implications introduced by C++11's thread-safety guarantees for these variables and discusses practical methods and compiler flags (like -fno-threadsafe-statics and /Zc:threadSafeInit) to potentially avoid this overhead in specific scenarios.

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#c #compiler flags #Multithreading