C++: Thread Local Storage vs Global
An example of an AI chatbot conversation about C++ thread local storage and global variables.
What is the difference between thread-local storage and global variables in C++?
Thread-local storage (TLS) allows data to be unique to each thread, while global variables are shared across all threads.
Can you give an example of when to use thread-local storage?
Sure! Use TLS when you need to maintain state for each thread, like in a multi-threaded logging system.
Are there any performance implications of using thread-local storage?
Yes, TLS can introduce overhead due to thread management, but it can improve safety by avoiding data races.
How do I implement thread-local storage in C++?
You can use the thread_local keyword to declare a variable that is unique to each thread.
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