What is thread-local storage in C++11?

Can you explain what thread-local storage is in C++11?

Thread-local storage (TLS) allows you to create variables that are unique to each thread. In C++11, you can use the thread_local keyword to declare such variables.

How do I initialize a thread-local variable?

You can initialize a thread-local variable just like a regular variable. For example: thread_local int myVar = 0; Each thread will have its own instance of myVar.

Are there any performance implications of using thread-local storage?

Yes, using thread-local storage can have performance implications, especially if the variables are frequently accessed or modified, as it may lead to increased memory usage and potential cache misses.

Can thread-local variables be used with static members?

Yes, you can use thread-local storage with static members, but you need to declare them with the thread_local keyword to ensure each thread has its own instance.